Filed pursuant to Rule 424(b)(5)
                                                Registration Nos. 333-56508
                                                                  333-56508-01

PROSPECTUS SUPPLEMENT
(To prospectus dated March 9, 2001)

                                 $1,000,000,000

[WISCONSIN ENERGY CORPORATION LOGO]

               $550,000,000 5.875% Senior Notes due April 1, 2006
               $450,000,000 6.50% Senior Notes due April 1, 2011

      We will pay interest on the notes on April 1 and October 1 of each year.
We will make the first payment on October 1, 2001. The notes will be issued
only in denominations of $1,000 and multiples of $1,000. We may, at our option,
redeem the notes in whole or in part prior to maturity at the redemption prices
described in this prospectus supplement.

      The notes will be unsecured and will rank equally with all of our other
unsecured and unsubordinated debt and other obligations.

                               ----------------



                           Per 5.875%                  Per 6.50%
                          Note due 2006    Total     Note due 2011    Total
                          -------------    -----     -------------    -----
                                                       
Public offering price
 (1).....................    99.508%    $547,294,000    99.774%    $448,983,000
Underwriting discount....        .6%      $3,300,000       .65%      $2,925,000
Proceeds, before
 expenses, to
 Wisconsin Energy........    98.908%    $543,994,000    99.124%    $446,058,000


(1) Plus accrued interest from March 28, 2001, if settlement occurs after that
    date

      Neither the Securities and Exchange Commission nor any other regulatory
body has approved or disapproved of these securities or passed upon the
accuracy or adequacy of this prospectus supplement or the accompanying
prospectus. Any representation to the contrary is a criminal offense.

      The notes will be ready for delivery in book-entry form only through The
Depository Trust Company on or about March 28, 2001.

                               ----------------

                          Joint Book-Running Managers

Merrill Lynch & Co.                                         Salomon Smith Barney

                               ----------------

Banc of America Securities LLC
                        Banc One Capital Markets, Inc.
                                                   Bear, Stearns & Co. Inc.
Credit Suisse First Boston                                              JPMorgan


                               ----------------

William Blair & Company    U.S. Bancorp Piper Jaffray  Loop Capital Markets, LLC

                               ----------------

           The date of this prospectus supplement is March 23, 2001.


                               TABLE OF CONTENTS

                             Prospectus Supplement



                                                                          Page
                                                                          ----
                                                                       
The Offering.............................................................  S-3
Wisconsin Energy Corporation.............................................  S-4
Summary Financial Information............................................  S-5
Business Strategy........................................................  S-6
Use of Proceeds..........................................................  S-7
Capitalization...........................................................  S-7
Description of the Senior Notes..........................................  S-8
Underwriting............................................................. S-11
Legal Matters............................................................ S-12
Documents Incorporated by Reference...................................... S-12
Forward-Looking Statements............................................... S-13

                                   Prospectus

About this Prospectus....................................................    2
Forward-Looking Statements and Cautionary Factors........................    2
Wisconsin Energy.........................................................    2
The WEC Trusts...........................................................    3
Use of Proceeds..........................................................    5
Ratio of Earnings to Fixed Charges.......................................    5
Description of Debt Securities...........................................    6
Description of Preferred Securities......................................   15
Description of Guarantees................................................   26
Relationship Among the Preferred Securities, the Corresponding Junior
 Subordinated Debentures and the Guarantees..............................   28
Book-Entry Issuance......................................................   30
Plan of Distribution.....................................................   32
Legal Matters............................................................   33
Experts..................................................................   34
Where You Can Find More Information......................................   34


                               ----------------

      You should rely only on the information contained or incorporated by
reference in this prospectus supplement and the accompanying prospectus. We
have not, and the underwriters have not, authorized any other person to provide
you with different information. If anyone provides you with different or
inconsistent information you should not rely on it. We are not, and the
underwriters are not, making an offer to sell these securities in any
jurisdiction where the offer or sale is not permitted. You should assume that
the information appearing in this prospectus supplement, the accompanying
prospectus and the documents incorporated by reference is accurate only as of
their respective dates. Our business, financial condition, results of
operations and prospects may have changed since those dates.

                                      S-2


                                  THE OFFERING

Issuer....................  Wisconsin Energy Corporation.

Notes offered.............  $550,000,000 of 5.875% senior notes due April 1,
                            2006 and $450,000,000 of 6.50% senior notes due
                            April 1, 2011.

Maturity..................  The 5.875% notes will mature on April 1, 2006. The
                            6.50% notes will mature on April 1, 2011.

Interest payment dates....  April 1 and October 1, beginning October 1, 2001.

Redemption................  We may redeem the notes at any time, in whole or in
                            part, at the redemption prices described under
                            "Description of the Senior Notes --Redemption at
                            Our Option." We are not required to establish a
                            sinking fund to retire the notes prior to maturity.

Ranking...................  Both series of notes are unsecured and
                            unsubordinated and will rank equally with all our
                            other unsecured and unsubordinated indebtedness and
                            other obligations.

Covenants.................  Both series of notes will limit our ability and the
                            ability of our subsidiaries to pledge or otherwise
                            encumber the stock of certain of our subsidiaries.
                            The indenture for both series of notes will also
                            limit our ability to enter into mergers,
                            consolidations, or sales of all or substantially
                            all of our assets unless the successor company
                            assumes our obligations under the indenture. These
                            covenants are subject to a number of important
                            qualifications and limitations. See "Description of
                            the Senior Notes--Additional Covenants."

Use of proceeds...........  We will use the estimated $989,152,000 in net
                            proceeds from this offering to repay a portion of
                            our outstanding commercial paper as it matures. See
                            "Use of Proceeds."

Trustee...................  The trustee under the indenture is Bank One Trust
                            Company, National Association.

                                      S-3


                          WISCONSIN ENERGY CORPORATION

      We are a diversified holding company with subsidiaries primarily in three
segments: a utility energy segment, a non-utility energy segment and a
manufacturing segment.

Utility Energy Segment

      The utility energy segment consists of Wisconsin Electric Power Company,
an electric, gas and steam utility; Wisconsin Gas Company, a gas and water
utility; and Edison Sault Electric Company, an electric utility.

      Wisconsin Electric serves over 1,000,000 electric customers in Wisconsin
and the Upper Peninsula of Michigan and 400,000 gas customers in Wisconsin.
Wisconsin Gas serves over 550,000 gas customers in Wisconsin. Edison Sault
Electric serves approximately 22,000 electric customers in Michigan.

      Wisconsin Electric, our primary subsidiary, accounts for 99% of our
generation business. Wisconsin Electric's power plants have a total generation
capacity of approximately 5,900 megawatts. Its fleet includes: 7 coal-fired
plants, 3 combustion turbine plants, 1 nuclear plant, 14 hydroelectric plants
and 2 wind turbines.

      The utility energy segment accounted for approximately 78% of our total
assets at December 31, 2000 and 76% of our total operating revenues and 94% of
our operating income in 2000.

Non-Utility Energy Segment

      The non-utility energy segment consists primarily of Wisvest Corporation,
which develops, owns and operates electric generating facilities and invests in
other energy-related entities; WICOR Energy Services Company, which engages in
natural gas purchasing and marketing as well as energy and price risk
management; and FieldTech, Inc., which provides meter reading and technology
services for gas, electric and water utilities. See "Business Strategy--Sales
of Non-Core Assets."

Manufacturing Segment

      The manufacturing segment conducts its operations through WICOR
Industries, Inc. and its three primary subsidiaries, Sta-Rite Industries, Inc.,
SHURflo Pump Manufacturing Co. and Hypro Corporation. These companies
manufacture pumps, water treatment products and fluid handling equipment.

Other

      Our other non-utility operating subsidiaries include Minergy Corp., which
develops and markets recycling technologies, Wispark LLC, formerly Wispark
Corporation, which develops and invests in real estate, and Wisconsin Energy
Capital Corporation, which engages in investing and financing activities. See
"Business Strategy--Sales of Non-Core Assets."

      Wisconsin Gas, WICOR Energy, FieldTech, WICOR Industries, Sta-Rite,
SHURflo and Hypro were acquired as a result of our acquisition of WICOR, Inc.
on April 26, 2000.

      Our principal office is located at 231 West Michigan Street, P.O. Box
2949, Milwaukee, Wisconsin 53201. Our telephone number is (414) 221-2345.

                                      S-4


                         SUMMARY FINANCIAL INFORMATION

      The following summary financial information is qualified by the financial
statements and other information included in the documents incorporated by
reference in this prospectus supplement and in the accompanying prospectus.

   Condensed Consolidated Income and Related Information of Wisconsin Energy



                                                Year Ended December 31,
                                               --------------------------------
                                               2000 (a)      1999        1998
                                               --------    --------    --------
                                                 (dollars in millions)
                                                              
Operating Revenues
  Utility Energy.............................. $2,556.7    $2,050.2    $1,980.0
  Non-Utility Energy..........................    372.8       193.2        34.1
  Manufacturing ..............................    374.2          --          --
  Other.......................................     51.0        29.2        25.3
                                               --------    --------    --------
    Total Operating Revenues.................. $3,354.7    $2,272.6    $2,039.4
                                               ========    ========    ========
Operating Income
  Utility Energy.............................. $  419.1    $  455.2    $  387.4
    Total Operating Income.................... $  444.9    $  476.1    $  390.7
Interest Expense.............................. $  243.5    $  148.3    $  127.8
Net Income.................................... $  154.2(b) $  209.0(c) $  188.1
Assets (end of period)
  Utility Energy.............................. $6,526.5    $4,975.3    $4,675.5
    Total Assets.............................. $8,406.1    $6,061.8    $5,185.6
Ratio of Earnings to Fixed Charges (d)........     2.0x        2.7x        2.8x

- --------
(a) Includes WICOR, Inc. and its subsidiaries subsequent to their acquisition
    on April 26, 2000. Because we accounted for the acquisition as a purchase,
    our earnings during 2000 did not include the first quarter heating season
    of Wisconsin Gas, which historically is its quarter of highest earnings.
(b) Includes net non-recurring costs, after tax, of $28.7 million or $0.24 per
    diluted share ($0.45 per share non-recurring gain offset by $0.69 per share
    of non-recurring charges relating primarily to the WICOR merger and the
    divestiture of non-core businesses).
(c) Includes non-recurring charge, after tax, of $10.8 million or $0.09 per
    diluted share for the settlement of litigation.
(d) For this ratio, "earnings" is determined by adding net income (including
    total allowances for funds used during construction) plus current and
    deferred income taxes. "Fixed charges" consists of interest charges,
    amortization of debt expenses, amounts representing the interest factors of
    nuclear fuel rental expense and for a long-term power purchase contract
    accounted for as a capital lease, an amount equal to the earnings before
    income taxes that would be required to pay preferred dividends of wholly
    owned subsidiaries, and distributions on preferred securities of a
    subsidiary trust.

                                      S-5


                               BUSINESS STRATEGY

     We performed a comprehensive review of our businesses during 2000 and
began implementing the following general strategies for the next decade:

Energy Distribution

     Upgrade our electric and gas utility distribution systems to increase
reliability and enable economic expansion in Wisconsin and combine the gas
operations and the customer service functions of our gas utilities to realize
synergy savings and increase customer satisfaction.

Electric Generation

     Improve the supply of reasonably priced electric power in Wisconsin.

Manufacturing

     Globalize the pump manufacturing business, improve margins, grow market
share and make value-adding acquisitions.

"Power The Future" Strategy

     In late February 2001, we announced enhancements to a 10-year, $7 billion
strategy, originally proposed in September 2000, that would improve the supply
and reliability of electricity in Wisconsin and that is expected to improve
our financial results. "Power the Future" is needed to meet growing load and
ensure a diverse fuel mix while keeping electricity prices reasonable.
Wisconsin Electric's load is growing at approximately 100-150 megawatts per
year. "Power the Future" adds new coal capacity to the power portfolio and
allows Wisconsin Electric to maintain roughly the same fuel mix as today. A
mix of coal and gas capacity is expected to save customers over $1.6 billion
(over the life of the plants and estimating future natural gas costs) compared
to the alternative all-gas scenario.

     As part of our "Power the Future" strategy, we would invest in the
following over the next ten years:

    .  approximately $3 billion (of which approximately 20% is expected to be
       spent through 2004) in at least 2,800 megawatts of new natural gas-
       fired and coal-fired generating capacity;

    .  approximately $1.3 billion in existing electric generating assets; and

    .  approximately $2.7 billion in new and existing electric utility
       distribution system assets and other capital projects.

     We anticipate creating a new non-utility energy subsidiary that would
construct and own the new generating capacity noted above. Under the enhanced
"Power the Future" strategy, Wisconsin Electric would sign 20 to 25-year
leases for each facility, approved by the Public Service Commission of
Wisconsin, and would operate and maintain the new plants as part of the lease
agreements. At the end of the original contracts, Wisconsin Electric would
have the right to renegotiate and continue the leases, or acquire the
associated plants outright, at market value. Smaller investor-owned or
municipal utilities, cooperatives and power marketing associations would have
some opportunity to expand or extend wholesale power purchases from Wisconsin
Electric as a result of the additional electric generating capacity included
in the proposal.

     Implementation of the "Power the Future" strategy is subject to a number
of state and federal regulatory approvals as well as the amendment of several
state laws in Wisconsin. In late February 2001, we filed an enhanced "Power
the Future" proposal with the Public Service Commission of Wisconsin. The
enhanced "Power the Future" proposal has benefited from a broad coalition of
support including customer groups, public power, municipal and cooperative
utilities and smaller investor-owned utilities in Wisconsin.

                                      S-6


Depending upon the response of the Public Service Commission of Wisconsin to
this preliminary filing, we anticipate filing detailed plans later in 2001. We
anticipate obtaining the capital necessary to finance and execute this strategy
from internal and external sources.

Sales of Non-Core Assets

     As part of the strategic assessment of our portfolio of non-regulated
assets, we have determined to sell certain non-regulated assets that we
determined do not involve core competencies.

     During 2000, we received proceeds of approximately $400 million from the
sale of assets including $220 million for our interest in SkyGen Energy
Holdings, LLC and the balance from other non-utility energy segment assets and
the sale of non-utility real estate assets held by Wispark.

     In December 2000, Wisvest-Connecticut, LLC, a wholly-owned subsidiary of
Wisvest, signed a definitive purchase and sale agreement for the sale of two
fossil-fueled power plants in the state of Connecticut it had purchased in
April 1999 for $277 million. We anticipate receiving estimated proceeds of $350
million, including amounts for inventory, with a projected closing by the end
of the second quarter of 2001, subject to various regulatory approvals and
other closing conditions.

     We expect to sell approximately $130 million in additional real estate
assets over the next two years.

     We will use the proceeds from these sales primarily to reduce debt.

                                USE OF PROCEEDS

     We estimate the net proceeds to us from the offering to be approximately
$989 million. We intend to use the net proceeds from the offering to repay a
portion of our outstanding commercial paper as it matures. Our short-term
commercial paper currently approximates $1.3 billion, with a weighted average
interest rate of approximately 5.5% and an average maturity of less than 30
days. The commercial paper relates primarily to our acquisition of WICOR, Inc.,
which we purchased on April 26, 2000 for approximately $1.2 billion in cash
plus related fees and expenses.

                                 CAPITALIZATION

     The table below shows our capitalization: (a) on an actual consolidated
basis; and (b) on an as adjusted basis to reflect the issue of the notes and
the anticipated repayment of short-term borrowings with the net proceeds, after
payment of the underwriters' discount and estimated offering expenses.



                                                     As of December 31, 2000
                                                   ----------------------------
                                                                As Adjusted
                                                            -------------------
                                                    Actual   Amount  Percentage
                                                   -------- -------- ----------
                                                     (in millions)
                                                            
Short-term debt..................................  $1,386.1 $  396.9     6.2%
Long-term debt (including current maturities)....   2,788.1  3,788.1    58.9%
Company-obligated mandatorily redeemable
 preferred securities of subsidiary trust holding
 solely debentures of the Company................     200.0    200.0     3.1%
Preferred stock..................................      30.4     30.4     0.5%
Common equity....................................   2,016.8  2,016.8    31.3%
                                                   -------- --------   -----
    Total capitalization.........................  $6,421.4 $6,432.2   100.0%
                                                   ======== ========   =====


                                      S-7


                        DESCRIPTION OF THE SENIOR NOTES

      We will issue each series of notes under the indenture, dated as of
March 15, 1999, between Wisconsin Energy and Bank One Trust Company, National
Association (as successor in interest to The First National Bank of Chicago),
as trustee. The notes constitute senior debt securities, as described in the
accompanying prospectus, and will contain all of the terms described in the
accompanying prospectus under the heading "Description of Debt Securities."
The notes will also contain the additional covenants and provisions regarding
events of default as described below.

General

      The indenture provides for issuance from time to time of debentures,
notes (including the notes issued in this offering) or other evidences of
indebtedness of Wisconsin Energy in an unlimited amount. Additional securities
may be issued under the indenture from time to time.

      The notes will be unsecured and unsubordinated and will rank equally
with all of our other unsecured and unsubordinated indebtedness and other
obligations.

      Interest on the notes accrues at the rate of 5.875% per year for the
notes due April 1, 2006 and 6.50% per year for the notes due April 1, 2011.
Interest will accrue from March 28, 2001 or from the most recent interest
payment date to which interest has been paid or provided for. Interest is
payable twice a year to holders of record at the close of business on the
March 15 or September 15 immediately preceding the interest payment date.
Interest payment dates will be April 1 and October 1 of each year beginning on
October 1, 2001. The 5.875% notes will mature on April 1, 2006 and the 6.50%
notes will mature on April 1, 2011.

      The notes will be issued only in registered form in denominations of
$1,000 and multiples thereof.

Redemption at Our Option

      The 5.875% notes due 2006 and the 6.50% notes due 2011 will be
redeemable as a whole or in part, at our option at any time, at a redemption
price equal to the greater of (a) 100% of the principal amount of the notes
being redeemed or (b) the sum of the present values of the remaining scheduled
payments of principal and interest thereon (exclusive of interest accrued to
the date of redemption) discounted to the redemption date on a semiannual
basis (assuming a 360-day year consisting of twelve 30-day months) at the
Treasury Rate applicable to each series plus 25 basis points in the case of
the 5.875% notes due 2006 and 30 basis points in the case of the 6.50% notes
due 2011, plus in each case accrued interest to the redemption date.

      "Treasury Rate" means with respect to any redemption date, the rate per
annum equal to the semiannual equivalent yield to maturity or interpolated (on
a day count basis) of the Comparable Treasury Issue, assuming a price for the
Comparable Treasury Issue (expressed as a percentage of its principal amount)
equal to the Comparable Treasury Price for such redemption date.

      "Comparable Treasury Issue" means the United States Treasury security or
securities selected by an Independent Investment Banker as having an actual or
interpolated maturity comparable to the remaining term of the notes being
redeemed that would be utilized, at the time of selection and in accordance
with customary financial practice, in pricing new issues of corporate debt
securities of a comparable maturity to the remaining term of such notes.

      "Independent Investment Banker" means one of the Reference Treasury
Dealers appointed by the trustee after consultation with Wisconsin Energy.

                                      S-8


      "Comparable Treasury Price" means, with respect to any redemption date,
(a) the average of the Reference Treasury Dealer Quotations for such redemption
date, after excluding the highest and lowest such Reference Treasury Dealer
Quotations, or (b) if the trustee obtains fewer than four such Reference
Treasury Dealer Quotations, the average of all such quotations.

      "Reference Treasury Dealer Quotations" means, with respect to each
Reference Treasury Dealer and any redemption date, the average, as determined
by the trustee, of the bid and asked prices for the Comparable Treasury Issue
(expressed in each case as a percentage of its principal amount) quoted in
writing to the trustee by such Reference Treasury Dealer at 3:30 p.m. New York
time on the third business day preceding such redemption date.

      "Reference Treasury Dealer" means each of Merrill Lynch, Pierce, Fenner &
Smith Incorporated, Salomon Smith Barney Inc., their respective successors, and
three other primary U.S. Government securities dealers in The City of New York
(a "Primary Treasury Dealer"), selected by Wisconsin Energy. If any Reference
Treasury Dealer shall cease to be a Primary Treasury Dealer, we will substitute
another Primary Treasury Dealer for that dealer.

      We will mail notice of any redemption at least 30 days but not more than
60 days before the redemption date to each holder of notes to be redeemed.

      Unless we default in payment of the redemption price, on and after the
redemption date interest will cease to accrue on the notes or portions thereof
called for redemption.

      We may from time to time without notice to, or the consent of, the
holders of a series of senior securities, create and issue further senior
securities of the same series, equal in rank to the senior securities in all
respects (or in all respects except for the payment of interest accruing prior
to the issue date of the new securities or except for the first payment of
interest following the issue date of the new securities) so that the new
securities may be consolidated and form a single series with the relevant
series of senior securities and have the same terms as to status, redemption or
otherwise as the relevant series of senior securities. In the event that we
issue additional senior securities of the same series, we will prepare a new
offering memorandum or prospectus.

Additional Covenants

 Limitation upon Liens on Stock of Certain Subsidiaries

      For so long as any notes remain outstanding, we will not create or incur
or allow any of our subsidiaries to create or incur any pledge or security
interest on any of the capital stock of Wisconsin Electric or Wisconsin Gas
held by us or one of our subsidiaries on the issue date of the notes.

 Limitation upon Mergers, Consolidations, and Sales of Assets

      The indenture provides that we will not consolidate with or merge into,
or transfer all or substantially all of our assets to, another company, unless:

    .  that company is organized under the laws of the United States or a
       state or is organized under the laws of a foreign jurisdiction and
       consents to the jurisdiction of the courts of the United States or a
       state;

    .  that company assumes by supplemental indenture all of our obligations
       under the indenture and the notes;

    .  all required approvals of any regulatory body having jurisdiction
       over the transaction shall have been obtained; and

                                      S-9


    .  immediately after the transaction no default exists under the
       indenture.

      The successor shall be substituted for us as if it had been an original
party to the indenture, securities resolutions, and the notes. Thereafter the
successor may exercise our rights and powers under the indenture, the notes,
and all of our obligations under those documents will terminate.

Events of Default

      In addition to the events of default described in the accompanying
prospectus under the heading "Description of Debt Securities--Defaults and
Remedies," an event of default under the notes will include our failure to pay
when due principal, interest or premium in an aggregate amount of $25 million
or more with respect to any of our Indebtedness, or the acceleration of any of
our Indebtedness aggregating $25 million or more which default is not cured,
waived or postponed pursuant to an agreement with the holders of the
Indebtedness within 60 days after written notice as provided in the indenture
governing the notes, or the acceleration is not rescinded or annulled within 30
days after written notice as provided in the indenture governing the notes. As
used in this paragraph, "Indebtedness" means the following obligations of
Wisconsin Energy and its principal utility subsidiaries, Wisconsin Electric and
Wisconsin Gas (and specifically excludes obligations of our other subsidiaries
and intercompany obligations):

    .  all obligations for borrowed money;

    .  all obligations evidenced by bonds, debentures, notes or similar
       instruments, or upon which interest payments are customarily made;

    .  all obligations under conditional sale or other title retention
       agreements relating to property purchased by us to the extent of the
       value of the property (other than customary reservations or
       retentions of title under agreements with suppliers entered into in
       the ordinary course of our business); and

    .  all obligations issued or assumed as the deferred purchase price of
       property or services purchased by us which would appear as
       liabilities on our balance sheet.

Ratings

      In conjunction with our pending issuance of the notes, Standard & Poors
assigned an A+ rating to the notes and maintained the negative outlook for us
and our subsidiaries. Fitch also assigned an A+ rating to the notes, but
revised its rating outlook from stable to negative. In addition, Fitch
reaffirmed its ratings of the securities of our utility subsidiaries, Wisconsin
Electric and Wisconsin Gas. Moody's Investors Service assigned a rating of A2
to the notes and lowered our issuer rating from A1 to A2. In addition, Moody's
reaffirmed its ratings of the securities of Wisconsin Electric and Wisconsin
Gas. Moody's outlook remains stable.

      A rating reflects only the views of a rating agency and is not a
recommendation to buy, sell or hold the notes. Any rating can be revised upward
or downward or withdrawn at any time by a rating agency if it decides the
circumstances warrant that change. Each rating should be evaluated
independently of any other rating.


                                      S-10


                                  UNDERWRITING

      Wisconsin Energy and the underwriters for the offering named below have
entered into an underwriting agreement with respect to the notes. Subject to
certain conditions, each underwriter has severally agreed to purchase the
aggregate principal amount of notes indicated in the following table.



                                                Aggregate           Aggregate
                                           Principal Amount of  Principal Amount of
                                           5.875% Senior Notes  6.50% Senior Notes
                  Underwriter                   due 2006             due 2011
      ------------------------------------ ------------------- --------------------
                                                         
      Merrill Lynch, Pierce, Fenner &
       Smith Incorporated.................    $165,000,000         $135,000,000
      Salomon Smith Barney Inc............     165,000,000          135,000,000
      Banc of America Securities LLC......      38,500,000           31,500,000
      Banc One Capital Markets, Inc.......      38,500,000           31,500,000
      Bear, Stearns & Co. Inc.............      38,500,000           31,500,000
      Chase Securities Inc................      38,500,000           31,500,000
      Credit Suisse First Boston
       Corporation........................      38,500,000           31,500,000
      William Blair & Company, L.L.C......      11,000,000            9,000,000
      U.S. Bancorp Piper Jaffray Inc......      11,000,000            9,000,000
      Loop Capital Markets, LLC...........       5,500,000            4,500,000
                                              ------------         ------------
          Total...........................    $550,000,000         $450,000,000
                                              ============         ============


      Notes sold by the underwriters to the public will initially be offered at
the initial public offering prices set forth on the cover of this prospectus
supplement. Any notes sold by the underwriters to securities dealers may be
sold at a discount from the initial public offering price of up to .35% of the
principal amount of the 5.875% notes due 2006 and .40% of the principal amount
of the 6.50% notes due 2011. Any such securities dealers may resell any notes
purchased from the underwriters to certain other brokers or dealers at a
discount from the initial public offering price of up to .25% of the principal
amount of the notes. If all the notes are not sold at the initial offering
price, the underwriters may change the offering price and the other selling
terms.

      The expenses of the offering, not including the underwriting discount,
are estimated to be approximately $900,000 and are payable by us.

      The notes are new issues of securities with no established trading
market. We have been advised by the underwriters that they intend to make a
market in the notes but are not obligated to do so and may discontinue market
making at any time without notice. We cannot assure you as to the liquidity of
the trading market for the notes.

      In connection with the offering, the underwriters may purchase and sell
the notes in the open market. These transactions may include short sales,
stabilizing transactions and purchases to cover positions created by short
sales. Short sales involve the sale by the underwriters of a greater aggregate
principal amount of notes than they are required to purchase in the offering.
Stabilizing transactions consist of certain bids or purchases made for the
purpose of preventing or retarding a decline in the market price of the notes
while the offering is in progress.

      The underwriters also may impose a penalty bid. This occurs when a
particular underwriter repays to the underwriters a portion of the underwriting
discount received by it because they have repurchased notes sold by or for the
account of such underwriter in stabilizing or short covering transactions.

                                      S-11


      These activities by the underwriters may stabilize, maintain or otherwise
affect the market price of the notes. As a result, the price of the notes may
be higher than the price that otherwise might exist in the open market. If
these activities are commenced, they may be discontinued by the underwriters at
any time. These transactions may be effected in the over-the-counter market or
otherwise.

      We have agreed to indemnify the several underwriters against certain
liabilities, including liabilities under the Securities Act of 1933, and to
contribute to payments in respect thereto.

      In the ordinary course of their respective businesses, the underwriters
and their affiliates have engaged, and may in the future engage, in commercial
banking and/or investment banking transactions with us and our affiliates. Bank
One Trust Company, National Association, the trustee under the indenture for
the notes, is an affiliate of Bank One Capital Markets, Inc. Frederick P.
Stratton, Jr., a member of our board of directors, is also a director of Bank
One Corporation, an affiliate of Bank One Capital Markets, Inc. In the event
more than ten percent of the net proceeds of this offering may be paid to
members or affiliates of members of the National Association of Securities
Dealers, Inc. participating in the offering, this offering will be conducted in
accordance with NASD Conduct Rule 2710(c)(8).

                                 LEGAL MATTERS

      Quarles & Brady LLP, Milwaukee, Wisconsin, will pass upon the validity of
the notes on our behalf. Cahill Gordon & Reindel, New York, New York, will act
as legal counsel to the underwriters.

                      DOCUMENTS INCORPORATED BY REFERENCE

      We file annual, quarterly and special reports, proxy statements and other
information with the SEC. Our SEC filings are available to the public over the
Internet at the SEC's web site at http://www.sec.gov. You may also read and
copy any document we file at the SEC's Public Reference Room at 450 Fifth
Street, N.W., Washington, D.C. 20549. You can call the SEC at 1-800-732-0330
for further information about the Public Reference Room.

      The SEC allows us to "incorporate by reference" the information we file
with them, which means we are assumed to have disclosed important information
to you when we refer you to documents that are on file with the SEC. Please
refer to "Where You Can Find More Information" in the accompanying prospectus.
At the date of this prospectus supplement, the documents specifically
incorporated by reference in the prospectus and this prospectus supplement are
our:

    .  Annual Report on Form 10-K for the fiscal year ended December 31,
       2000.

    .  Current Reports on Form 8-K filed March 2, 2001 and March 15, 2001.

                                      S-12


                           FORWARD-LOOKING STATEMENTS

      Some statements contained or incorporated by reference in this prospectus
supplement, including the discussion of our plans and proposals under "Business
Strategy," are forward-looking statements within the meaning of the Private
Securities Litigation Reform Act of 1995. These forward-looking statements are
subject to various risks and uncertainties. Actual results may vary materially.
Factors that could cause actual results to differ materially include, but are
not limited to:

    .  general economic conditions, business and competitive conditions in
       the deregulating and consolidating energy industry, in general, and
       in our service territories;

    .  availability of our generating facilities;

    .  changes in purchased power costs;

    .  changes in coal or natural gas prices and supply availability and the
       ability to recover fuel and purchased power costs;

    .  unusual weather;

    .  risks associated with non-utility diversification;

    .  regulatory decisions;

    .  obtaining necessary regulatory approvals and investment capital to
       implement our business strategy;

    .  timely realization of anticipated net cost savings;

    .  foreign, governmental, economic, political and currency risks; and

    .  the other cautionary factors described in "Management's Discussion
       and Analysis of Financial Condition and Results of Operations" in our
       Form 10-K for the year ended December 31, 2000.

                                      S-13


PROSPECTUS

                                 $1,000,000,000

                          WISCONSIN ENERGY CORPORATION

                                Debt Securities

                               ----------------

                              WEC CAPITAL TRUST II

                              Preferred Securities
                      Fully and Unconditionally Guaranteed
                             as described herein by
                          Wisconsin Energy Corporation

WISCONSIN ENERGY:

May issue and sell debt securities to the public.

   If a WEC Trust issues and sells trust preferred securities, Wisconsin
Energy:

  .  will pay principal and interest on the junior subordinated debentures,
     subject to payment on its more senior debt;

  .  may choose to distribute these junior subordinated debentures pro-rata
     to the preferred and common securities holders if it dissolves the
     trust;

  .  will fully and unconditionally guarantee the preferred securities on a
     junior subordinated level based on:

    -- its obligations to make payments on the corresponding junior
       subordinated debentures;

    -- its obligations under the preferred securities guarantee (its
       payment obligations are subject to payment on all of its general
       liabilities); and

    -- its obligations under the trust agreement; and

THE WEC TRUST:

  .  may issue and sell preferred securities (representing undivided
     beneficial interests in the trust) to the public; in which case it also

  .  will issue and sell common securities to Wisconsin Energy; and

  .  will use the proceeds from these sales to buy a series of junior
     subordinated debentures from Wisconsin Energy with terms that correspond
     to the preferred securities.

We urge you to read this prospectus and the prospectus supplement carefully
before you make your investment decision.

- --------------------------------------------------------------------------------

   Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if
this prospectus is truthful or complete. Any representation to the contrary is
a criminal offense.

                 The date of this prospectus is March 9, 2001.


                             ABOUT THIS PROSPECTUS


   In this prospectus, "we" and "Wisconsin Energy" refer to Wisconsin Energy
Corporation and a "trust" or "WEC Trust" refers to WEC Capital Trust I or WEC
Capital Trust II, which are the Delaware statutory business trusts that we have
formed to issue their preferred securities, or similar trusts that we may form
in the future, as the context may require. WEC Capital Trust I issued and sold
$200,000,000 of its preferred securities pursuant to a prospectus and
prospectus supplement dated March 15, 1999, and March 16, 1999, respectively.
Any additional trust securities that we issue and sell will be issued and sold
by WEC Capital Trust II or similar trusts that we may form in the future.

   This prospectus is part of a registration statement that we filed with the
SEC utilizing a "shelf" registration process. Under this shelf process,
Wisconsin Energy or the WEC Trusts may issue and sell to the public any
combination of the securities described in this prospectus in one or more
offerings up to a total dollar amount of $1,000,000,000.

   This prospectus provides you with only a general description of the
securities we or the WEC Trusts may issue and sell. Each time we or the trusts
issue and sell securities, we will provide a prospectus supplement that will
contain specific information about the particular securities and terms of that
offering. In the prospectus supplement, we will describe the interest rate,
payment dates, maturity and other terms of any debt securities that we issue
and sell, and the rights to periodic cash distributions, payments on
liquidation and other terms of a trust's preferred securities. The prospectus
supplement will also describe the proceeds and uses of proceeds from the
securities, together with the names and compensation of the underwriters
through whom the securities are being issued and sold, and other important
considerations for investors. It may also add to, update or change information
contained in this prospectus.

   Unless we say otherwise in the prospectus supplement, we may redeem our debt
securities for cash, or cause the trusts to liquidate and give investors our
debt securities in place of the trusts' preferred securities.

               FORWARD-LOOKING STATEMENTS AND CAUTIONARY FACTORS

   We have included or may include statements in this prospectus and any
prospectus supplement (including documents incorporated by reference) that
constitute forward-looking statements within the meaning of the Private
Securities Litigation Reform Act of 1995. You will be able to recognize a
forward-looking statement because it contains the words "anticipate,"
"believe," "estimate," "expect," "project," "objective" or a similar expression
to identify it as a forward-looking statement.

   We caution you that any such forward-looking statements are not guarantees
of future performance and involve known and unknown risks, uncertainties and
other factors which may cause our actual results, performance or achievements
to differ materially from the future results, performance or achievements we
have anticipated in such forward-looking statements.

   In addition to the assumptions and other factors referred to specifically in
connection with those statements, factors that could cause our actual results
to differ materially from those contemplated in the forward-looking statements
include factors we have described under the captions "Factors Affecting Results
of Operations" and "Cautionary Factors" in the "Management's Discussion and
Analysis of Financial Condition and Results of Operations" section of our
Annual Report on Form 10-K or under similar captions in the other documents we
have incorporated by reference.

                                WISCONSIN ENERGY

   We were incorporated in the state of Wisconsin in 1981 and became a
diversified holding company in 1986. Our principal subsidiaries are Wisconsin
Electric Power Company, an electric, gas and steam utility, and

                                       2


Wisconsin Gas Company, a gas and water utility. We also have subsidiaries
engaged in various non-utility businesses. We conduct our operations primarily
in three operating segments: a utility energy segment, a non-utility energy
segment and a manufacturing segment.

   Utility Energy Segment: The utility energy segment consists of Wisconsin
Electric Power Company serving over 1,000,000 electric customers in Wisconsin
and Michigan and 400,000 gas customers in Wisconsin; Wisconsin Gas Company
serving over 550,000 gas customers in Wisconsin; and Edison Sault Electric
Company, an electric utility serving approximately 22,000 customers in
Michigan.

   Non-Utility Energy Segment: The non-utility energy segment consists of
Wisvest Corporation, which develops, owns and operates electric generating
facilities and invests in other energy-related entities; WICOR Energy Services
Company, which engages in natural gas purchasing and marketing as well as
energy and price risk management; and FieldTech, Inc., which provides meter
reading and technology services for gas, electric and water utilities.

   Manufacturing Segment: The manufacturing segment consists of WICOR
Industries, Inc., an intermediary holding company, and its three primary
subsidiaries: Sta-Rite Industries, Inc., SHURflo Pump Manufacturing Co. and
Hypro Corporation, which are manufacturers of pumps as well as fluid processing
and filtration equipment.

   Other: Other non-utility operating subsidiaries of Wisconsin Energy include
primarily Minergy Corp., which develops and markets recycling technologies, and
Wispark LLC, which develops and invests in real estate.

   Wisconsin Gas, WICOR Energy, FieldTech, WICOR Industries, Sta-Rite, SHURflo
and Hypro were acquired by Wisconsin Energy as a result of the Company's
acquisition of WICOR, Inc. ("WICOR"), on April 26, 2000.

   On January 1, 2001, Wisconsin Electric and Edison Sault, together with other
unaffiliated Wisconsin utilities, transferred their electric transmission
assets, with a net book value of approximately $252 million, to the new
American Transmission Company LLC for a proportionate ownership interest.

   We are an exempt holding company by order of the SEC under Section 3(a)(1)
of the Public Utility Holding Company Act of 1935, as amended. As a result, we
are exempt from the provisions of that Act, other than with respect to certain
acquisitions of securities of a public utility. Our principal executive offices
are located at 231 West Michigan Street, P.O. Box 2949, Milwaukee, Wisconsin
53201. Our telephone number is (414) 221-2345.

                                 THE WEC TRUSTS

   Each WEC Trust is a statutory business trust that we have formed under
Delaware law. For each trust there is a trust agreement signed by us as
depositor, by Bank One Trust Company, National Association (successor to The
First National Bank of Chicago) as property trustee, by Bank One Delaware, Inc.
(formerly First Chicago Delaware Inc.) as Delaware trustee and by two of our
employees as administrative trustees. For each trust there is also a
certificate of trust filed with the Delaware Secretary of State. When we are
ready to issue and sell securities through the trust we amend the trust
agreement to read substantially like the form of amended and restated trust
agreement that is filed with the SEC as an exhibit to the registration
statement of which this prospectus is a part. Each trust agreement will be
qualified as an indenture under the Trust Indenture Act of 1939.

The Issuance and Sale of the Trust Securities

   We have created each WEC Trust solely to:

  .  issue and sell its trust securities (including the preferred securities
     and the common securities), which represent proportionate beneficial
     ownership interests in that WEC Trust and its assets;

                                       3


  .  use the proceeds from the sale of the trust securities to buy from us a
     series of our junior subordinated debentures, which will be the only
     assets of that WEC Trust;

  .  maintain its status as a grantor trust for federal income tax purposes;
     and

  .  engage in only those other activities necessary or convenient to
     accomplish the other purposes.

Because the WEC Trusts' only assets will be junior subordinated debentures that
we issue to them, our payments on those debt securities will be the only source
of funds to be paid to purchasers or owners of the trust securities. Each of
the WEC Trusts is a separate legal entity, so the assets of one will not be
available to satisfy the obligations of any other similar trust we may create.

   We will acquire and own all of the common securities of each WEC Trust. The
common securities will have an aggregate liquidation amount of at least 3% of
the total capital of each WEC Trust. The remainder, representing up to 97% of
the ownership interests in the WEC Trust, will be preferred securities of the
WEC Trust which may be sold to the public. The common securities and the
preferred securities will have substantially the same terms, including the same
priority of payment, and will receive proportionate payments from the WEC Trust
in respect of distributions and payments upon liquidation, redemption or
otherwise at the same times, with one exception: if we default on the
corresponding junior subordinated debentures that we issue to the WEC Trust and
do not cure the default within the times specified in the indenture governing
our issuance of our junior subordinated debentures, our rights to payments as
holder of the common securities will be subordinated to the rights of the
holders of the preferred securities. See "DESCRIPTION OF PREFERRED SECURITIES--
Subordination of Common Securities."

   Unless we say otherwise in the applicable prospectus supplement, each WEC
Trust will have a term of approximately 50 years. However, a WEC Trust may
dissolve earlier as provided in the applicable trust agreement and the
prospectus supplement.

   Each WEC Trust's business and affairs will be conducted by its trustees,
whom we will appoint as holder of the common securities. Unless we say
otherwise in the applicable prospectus supplement, the trustees for each WEC
Trust will be:

  .  Bank One Trust Company, National Association, as the property trustee

  .  Bank One Delaware, Inc., as the Delaware trustee

  .  Two of our officers, as individual administrative trustees.

We refer to all of these trustees collectively as the "issuer trustees." Bank
One Trust Company, National Association, as property trustee, will act as sole
indenture trustee under each trust agreement for purposes of compliance with
the Trust Indenture Act. Unless we say otherwise in the applicable prospectus
supplement, Bank One Trust Company, National Association will also act as
trustee under our guarantee agreement relating to the preferred securities. See
"DESCRIPTION OF GUARANTEES" and "DESCRIPTION OF DEBT SECURITIES--Certain
Provisions Relating to Junior Subordinated Debentures Issued to the WEC
Trusts."

   As the holder of the common securities of a WEC Trust, we will ordinarily
have the right to appoint, remove or replace the property trustee or the
Delaware trustee for each WEC Trust. However, if we are in default with respect
to the corresponding junior subordinated debentures issued to that WEC Trust
(and we haven't cured that default within the time specified in the indenture),
then the holders of a majority in liquidation amount of that WEC Trust's
outstanding preferred securities will be entitled to appoint, remove or replace
the property trustee and/or the Delaware trustee. In no event will the holders
of the preferred securities have the right to vote to appoint, remove or
replace the administrative trustees; we retain that right exclusively as the
holder of the common securities. The duties and obligations of each issuer
trustee are governed by the applicable trust agreement.

   Pursuant to the indenture and the trust agreement, we promise to pay all
fees and expenses related to each WEC Trust and the offering of the preferred
securities and will pay, directly or indirectly, all ongoing costs, expenses
and liabilities of each WEC Trust, except obligations under the preferred
securities and the common securities.

                                       4


   While the WEC Trusts have separate financial statements, these financial
statements would not be material to holders of the preferred securities because
the WEC Trusts have no independent operations. They exist solely for the
limited functions summarized above. We will guarantee the preferred securities
as described later in this prospectus.

   The WEC Trusts are treated as Wisconsin Energy's subsidiaries, and the
accounts of the WEC Trusts are included in our financial statements. Currently
the FASB is considering the classification of trust preferred securities within
the balance sheet. Pending clarification from the FASB, the preferred
securities are presented as a separate line item in our balance sheet and
disclosures concerning the preferred securities, the guarantee and the junior
subordinated debentures are included in the notes to the financial statements.
We record distributions paid on the preferred securities as an expense.

   The principal executive office of each WEC Trust is c/o Wisconsin Energy
Corporation, 231 West Michigan Street, P.O. Box 2949, Milwaukee, Wisconsin
53201, and its telephone number is (414) 221-2345.

                                USE OF PROCEEDS

   Each WEC Trust will use all of the proceeds it receives from the sale of its
trust securities (including both the preferred securities and the common
securities) to purchase from us the corresponding junior subordinated
debentures that will provide the funds for the trust's payments to purchasers
of its trust securities. Except as otherwise described in the applicable
prospectus supplement, we intend to use the net proceeds from the sale of our
debt securities (either to the trusts or directly to the public) to repay
borrowings, for investments (including funding equity contributions to
affiliates) and/or for other general corporate purposes. Pending disposition,
we may temporarily invest any funds not required immediately for those purposes
in U.S. Government Securities and other high quality U.S. securities. We expect
to borrow money or sell securities from time to time, but we cannot predict the
precise amounts or timing of doing so. For current information, look at our
current filings with the SEC. See "WHERE YOU CAN FIND MORE INFORMATION."

                       RATIO OF EARNINGS TO FIXED CHARGES

   Our historical ratios of earnings to fixed charges are described below for
the periods indicated.



                                                        Year Ended December 31,
                                                        ------------------------
                                                        2000 1999 1998 1997 1996
                                                        ---- ---- ---- ---- ----
                                                             
      Ratio of Earnings to Fixed Charges............... 2.0x 2.7x 2.8x 1.7x 4.0x


   These computations include us and our subsidiaries. For these ratios,
"earnings" is determined by adding net income (including total allowances for
funds used during construction) plus current and deferred income taxes. "Fixed
charges" consists of interest charges, amortization of debt expenses, amounts
representing the interest factors of nuclear fuel rental expense and for a
long-term power purchase contract accounted for as a capital lease, an amount
equal to the earnings before income taxes that would be required to pay
preferred dividends of wholly owned subsidiaries, and distributions on
preferred securities of a subsidiary trust. The ratio of earnings to fixed
charges reflects operations of WICOR, Inc. since April 26, 2000, the date of
acquisition. See "WHERE YOU CAN FIND MORE INFORMATION."

                                       5


                         DESCRIPTION OF DEBT SECURITIES

   The debt securities, including any junior subordinated debentures that we
issue to a WEC Trust, will be our direct unsecured general obligations. The
debt securities will be either senior debt securities, subordinated debt
securities or junior subordinated debt securities, including the junior
subordinated debentures that are issued to the WEC Trusts. The debt securities
will be issued in one or more series under the indenture described above
between us and Bank One Trust Company, National Association, as trustee and
under a securities resolution (which may be in the form of a resolution or a
supplemental indenture) authorizing the particular series.

   We have summarized selected provisions of the indenture below. The summary
is not complete. The form of the indenture and a form of securities resolution
are filed as exhibits to the registration statement of which this prospectus is
a part. The securities resolution for each series also has been or will be
filed or incorporated by reference as an exhibit to the registration statement.
You should read the indenture and the applicable securities resolution for
provisions that may be important to you. In the summary below, we have included
references to section numbers in the indenture so that you can easily find
those provisions. The particular terms of any debt securities we offer will be
described in the related prospectus supplement, along with any applicable
modifications of or additions to the general terms of the debt securities
described below and in the indenture. For a description of the terms of any
series of debt securities, you should also review both the prospectus
supplement relating to that series and the description of the debt securities
set forth in this prospectus before making an investment decision.

General

   The indenture does not significantly limit our operations. In particular, it
does not:

  .  limit the amount of debt securities that we can issue under the
     indenture;

  .  limit the number of series of debt securities that we can issue from
     time to time;

  .  restrict the total amount of debt that we or our subsidiaries may incur;
     or

  .  contain any covenant or other provision that is specifically intended to
     afford any holder of the debt securities special protection in the event
     of highly leveraged transactions or any other transactions resulting in
     a decline in our ratings or credit quality.

   As of the date of this prospectus, the $206,200,000 of 6.85% Junior
Subordinated Debentures due March 31, 2039 that were issued and sold to WEC
Capital Trust I in March 1999 in connection with the issuance by WEC Capital
Trust I of its 6.85% Trust Preferred Securities are the only debt securities
outstanding under the indenture. The ranking of a series of debt securities
with respect to all of our indebtedness will be established by the securities
resolution creating the series.

   Although the indenture permits the issuance of debt securities in other
forms or currencies, the debt securities covered by this prospectus will only
be denominated in U.S. dollars in registered form without coupons, unless
otherwise indicated in the applicable prospectus supplement.

Terms

   A prospectus supplement and a securities resolution relating to the offering
of any series of debt securities will include specific terms relating to the
offering. The terms will include some or all of the following:

  .  the designation, aggregate principal amount, currency or composite
     currency and denominations of the debt securities;

  .  the price at which the debt securities will be issued and, if an index,
     formula or other method is used, the method for determining amounts of
     principal or interest;

  .  the maturity date and other dates, if any, on which the principal of the
     debt securities will be payable;


                                       6


  .  the interest rate or rates, if any, or method of calculating the
     interest rate or rates which the debt securities will bear;

  .  the date or dates from which interest will accrue and on which interest
     will be payable, and the record dates for the payment of interest;

  .  the manner of paying principal and interest on the debt securities;

  .  the place or places where principal and interest will be payable;

  .  the terms of any mandatory or optional redemption of the debt securities
     by us, including any sinking fund;

  .  the terms of any conversion or exchange right;

  .  the terms of any redemption of debt securities at the option of holders;

  .  any tax indemnity provisions;

  .  if payments of principal or interest may be made in a currency other
     than U.S. Dollars, the manner for determining such payments;

  .  the portion of principal payable upon acceleration of any discounted
     debt security (as described below);

  .  whether and upon what terms debt securities may be defeased (which means
     that we would be discharged from our obligations by depositing
     sufficient cash or government securities to pay the principal, interest,
     any premiums and other sums due to the stated maturity date or a
     redemption date of the debt securities of the series);

  .  whether any events of default or covenants in addition to or instead of
     those set forth in the indenture apply;

  .  provisions for electronic issuance of debt securities or for debt
     securities in uncertificated form;

  .  the ranking of the debt securities, including the relative degree, if
     any, to which the debt securities of such series are subordinated to one
     or more other series of debt securities in right of payment, whether
     outstanding or not;

  .  any provisions relating to extending or shortening the date on which the
     principal and premium, if any, of the debt securities of the series is
     payable;

  .  any provisions relating to the deferral of payment of any interest;

  .  if the series of debt securities is to be issued to a WEC Trust, the
     forms of the related trust agreement and guarantee agreement;

  .  the additions or changes, if any, to the indenture with respect to that
     series of debt securities to permit or facilitate the issuance of that
     series of debt securities to a WEC Trust; and

  .  any other terms not inconsistent with the provisions of the indenture,
     including any covenants or other terms that may be required or advisable
     under United States or other applicable laws or regulations, or
     advisable in connection with the marketing of the debt securities.
     (Section 2.01)

   We may issue debt securities of any series as registered debt securities,
bearer debt securities or uncertificated debt securities, and in such
denominations as we specify in the securities resolution and prospectus
supplement for the series. (Section 2.01)

   In connection with its original issuance, no bearer debt security will be
offered, sold or delivered to any location in the United States. We may deliver
a bearer debt security in definitive form in connection with its original
issuance only if a certificate in a form we specify to comply with United
States laws and regulations is presented to us. (Section 2.04)

                                       7


   A holder of registered debt securities may request registration of a
transfer upon surrender of the debt security being transferred at any agency we
maintain for that purpose and upon fulfillment of all other requirements of the
agent. (Sections 2.03 and 2.07)

   We may issue debt securities under the indenture as discounted debt
securities to be offered and sold at a substantial discount from the principal
amount of those debt securities. Special United States federal income tax and
other considerations applicable to discounted debt securities will be described
in the related prospectus supplement. A discounted debt security is a debt
security where the amount of principal due upon acceleration is less than the
stated principal amount. (Sections 1.01 and 2.10)

Conversion and Exchange

   The terms, if any, on which debt securities of any series will be
convertible into or exchangeable for our common stock or other equity or debt
securities, property, cash or obligations or a combination of any of the
foregoing, will be summarized in the prospectus supplement relating to the
series. The terms may include provisions for conversion or exchange, either on
a mandatory basis, at the option of the holder or at our option. (Section 9.01)

Certain Covenants

   Any restrictive covenants which may apply to a particular series of debt
securities will be described in the related prospectus supplement.

Ranking of Debt Securities

   Unless stated otherwise in a prospectus supplement, the debt securities
issued under the indenture will rank equally and ratably with our other
unsecured and unsubordinated debt. The debt securities will not be secured by
any properties or assets and will represent our unsecured debt.

   Because we are a holding company and conduct all of our operations through
subsidiaries, holders of debt securities will generally have a junior position
to claims of creditors of our subsidiaries, including trade creditors, debt
holders, secured creditors, taxing authorities, guarantee holders and any
preferred stockholders. Various financing arrangements and regulatory
requirements impose restrictions on the ability of our utility subsidiaries to
transfer funds to us in the form of cash dividends, loans or advances. Under
Wisconsin law, our utility subsidiaries are prohibited from loaning funds,
either directly or indirectly, to us. The indenture does not limit us or our
subsidiaries if we decide to issue additional debt. Some of our operating
subsidiaries have ongoing corporate debt programs used to finance their
business activities. As of December 31, 2000, our direct obligations included
approximately $1.2 billion of outstanding short-term debt (including short-term
debt supported by multi-year bank back-up credit facilities) and $206,200,000
of our 6.85% Junior Subordinated Debentures due March 31, 2039 that were issued
and sold to WEC Capital Trust I in March, 1999 in connection with its issuance
and sale of 8,000,000 of its 6.85% Trust Preferred Securities (TRUPS(R)). In
addition, our utility subsidiaries had approximately $1.9 billion of
outstanding long-term debt and $0.4 billion of outstanding short-term debt, and
our non-utility subsidiaries had approximately $0.4 billion of outstanding
long-term debt and $0.3 billion of outstanding short-term debt. Outstanding
preferred stock of Wisconsin Electric was entitled to annual dividends of
approximately $1.2 million.

Successor Obligor

   The indenture provides that, unless otherwise specified in the securities
resolution establishing a series of debt securities, we will not consolidate
with or merge into, or transfer all or substantially all of our assets to,
another company, unless:

  .  that company is organized under the laws of the United States or a state
     or is organized under the laws of a foreign jurisdiction and consents to
     the jurisdiction of the courts of the United States or a state;

                                       8


  .  that company assumes by supplemental indenture all of our obligations
     under the indenture, the debt securities and any coupons;

  .  all required approvals of any regulatory body having jurisdiction over
     the transaction shall have been obtained; and

  .  immediately after the transaction no default exists under the indenture.

   The successor shall be substituted for us as if it had been an original
party to the indenture, securities resolutions and debt securities. Thereafter
the successor may exercise our rights and powers under the indenture, the debt
securities and any coupons, and all of our obligations under those documents
will terminate. (Section 5.01)

Exchange of Debt Securities

   Registered debt securities may be exchanged for an equal principal amount of
registered debt securities of the same series and date of maturity in the
denominations requested by the holders upon surrender of the registered debt
securities at an agency we maintain for that purpose and upon fulfillment of
all other requirements of the agent. (Section 2.07)

Defaults and Remedies

   Unless the securities resolution establishing the series provides for
different events of default, in which event the prospectus supplement will
describe the change, an event of default with respect to a series of debt
securities will occur if:

  .  we default in any payment of interest on any debt securities of that
     series when the payment becomes due and payable and the default
     continues for a period of 60 days;

  .  we default in the payment of the principal and premium, if any, of any
     debt securities of the series when those payments become due and payable
     at maturity or upon redemption, acceleration or otherwise;

  .  we default in the payment or satisfaction of any sinking fund obligation
     with respect to any debt securities of the series as required by the
     securities resolution establishing the series and the default continues
     for a period of 60 days;

  .  we default in the performance of any of our other agreements applicable
     to the series and the default continues for 90 days after the notice
     specified below;

  .  pursuant to or within the meaning of any Bankruptcy Law we:

    --commence a voluntary case,

    --consent to the entry of an order for relief against us in an
     involuntary case,

    --consent to the appointment of a custodian for us or for all or
     substantially all of our property, or

    --make a general assignment for the benefit of our creditors;

  .  a court of competent jurisdiction enters an order or decree under any
     Bankruptcy Law that remains unstayed and in effect for 60 days and that:

    --is for relief against us in an involuntary case,

    --appoints a custodian for us or for all or substantially all of our
     property, or

    --orders us to liquidate; or

  .  there occurs any other event of default provided for in such series.
     (Section 6.01)

   The term "Bankruptcy Law" means Title 11, U.S. Code or any similar federal
or state law for the relief of debtors. The term "Custodian" means any
receiver, trustee, assignee, liquidator or a similar official under any
Bankruptcy Law. (Section 6.01)

                                       9


   A default under the indenture means any event which is, or after notice or
passage of time would be, an event of default under the indenture. A default
under the fourth bullet point above is not an event of default until the
Trustee or the holders of at least 25% in principal amount of the series notify
us of the default and we do not cure the default within the time specified
after receipt of the notice. (Section 6.01)

   If an event of default occurs under the indenture and is continuing on a
series, the trustee by notice to us, or (except as provided in the next
sentence) the holders of at least 25% in principal amount of the series by
notice both to us and to the trustee, may declare the principal of and accrued
interest on all the debt securities of the series to be due and payable
immediately. In the case of a series issued to a WEC Trust, if, upon an event
of default, the trustee or the holders of not less than 25% in aggregate
principal amount of the series fail to declare the principal of all the debt
securities of that series to be immediately due and payable, then the holders
of 25% in aggregate liquidation amount of the preferred securities then
outstanding shall have the right to do so by notice to us and to the trustee.
Discounted debt securities may provide that the amount of principal due upon
acceleration is less than the stated principal amount.

   Except as provided in the next sentence, the holders of a majority in
principal amount of a series of debt securities, by notice to the trustee, may
rescind an acceleration and its consequences if the rescission would not
conflict with any judgment or decree and if all existing events of default on
the series have been cured or waived except nonpayment of principal or interest
that has become due solely because of the acceleration. In the case of a series
of debt securities issued to a WEC Trust, the holders of a majority in
aggregate liquidation amount of the preferred securities then outstanding shall
also have the right to rescind the acceleration and its consequences with
respect to such series, subject to the same conditions set forth above.
(Section 6.02)

   If an event of default occurs and is continuing on a series, the trustee may
pursue any available remedy to collect principal or interest then due on the
series, to enforce the performance of any provision applicable to the series,
or otherwise to protect the rights of the trustee and holders of the series.
(Section 6.03)

   In the case of a series issued to a WEC Trust, any holder of the related
preferred securities of the WEC Trust shall have the right, upon the occurrence
and continuance of an event of default with respect to the series following our
failure to pay timely interest, principal or premium as described above, to sue
us directly. In that lawsuit the holder of the related preferred securities can
force us to pay to the holder the principal of, and premium, if any, and
interest on, the debt securities having a principal amount equal to the
aggregate liquidation amount of the preferred securities held by that holder.
(Section 6.06)

   The trustee may require indemnity satisfactory to it before it performs any
duty or exercises any right or power under the indenture or the debt securities
which it reasonably believes may expose it to any loss, liability or expense.
(Section 7.01) With some limitations, holders of a majority in principal amount
of the debt securities of the series may direct the trustee in its exercise of
any trust or power with respect to that series. (Section 6.05) Except in the
case of default in payment on a series, the trustee may withhold notice of any
continuing default if it determines that withholding the notice is in the
interest of holders of the series. (Section 7.04) We are required to furnish
the trustee annually a brief certificate as to our compliance with all
conditions and covenants under the indenture. (Section 4.04)

   The indenture does not have a cross-default provision. Thus, a default by us
on any other debt, including any other series of debt securities, would not
constitute an event of default under the indenture. A securities resolution may
provide for a cross-default provision; in that case the prospectus supplement
will describe the terms of that provision.

Amendments and Waivers

   The indenture and the debt securities or any coupons of the series may be
amended, and any default may be waived. Unless the securities resolution
provides otherwise, in which event the prospectus supplement will describe the
revised provision, we and the trustee may amend the debt securities, the
indenture and any coupons with the written consent of the holders of a majority
in principal amount of the debt securities of all

                                       10


series affected voting as one class. However, in the case of a series of debt
securities issued to a WEC Trust, we are not permitted to adopt an amendment
that adversely affects the holders of the preferred securities in any material
respect, and no termination of the indenture shall occur, without the prior
consent of the holders of not less than a majority in aggregate liquidation
amount of the preferred securities then outstanding unless and until the
principal (and premium, if any) of the debt securities of that series and all
accrued and unpaid interest thereon have been paid in full. Furthermore, in the
case of a series issued to a WEC Trust, no amendment can be made to the
provisions of the indenture allowing holders of preferred securities to sue
directly following our failure to make timely payments on the debt securities
as described above without the prior consent of the holder of each preferred
security then outstanding unless and until the principal (and premium, if any)
of the debt securities of the series and all accrued and unpaid interest
thereon have been paid in full. (Section 10.02)

   Without the consent of each debt security holder affected, no amendment or
waiver may:

  .  reduce the principal amount of debt securities whose holders must
     consent to an amendment or waiver;

  .  reduce the interest on or change the time for payment of interest on any
     debt security (but this does not affect our right to elect to defer one
     or more payments of interest as described below under "Certain
     Provisions Relating to Junior Subordinated Debentures Issued to the WEC
     Trusts--Option to Extend Interest Payment Date");

  .  change the fixed maturity of any debt security (subject to any right we
     may have retained in the securities resolution and described in the
     prospectus supplement);

  .  reduce the principal of any non-discounted debt security or reduce the
     amount of the principal of any discounted debt security that would be
     due on acceleration thereof;

  .  change the currency in which the principal or interest on a debt
     security is payable;

  .  make any change that materially adversely affects the right to convert
     or exchange any debt security; or

  .  waive any default in payment of interest on or principal of a debt
     security. (Section 10.02)

   Without the consent of any debt security holder, we may amend the indenture
or the debt securities:

  .  to cure any ambiguity, omission, defect, or inconsistency;

  .  to provide for the assumption of our obligations to debt security
     holders by the surviving company in the event of a merger or
     consolidation requiring such assumption;

  .  to provide that specific provisions of the indenture shall not apply to
     a series of debt securities not previously issued;

  .  to create a series of debt securities and establish its terms;

  .  to provide for a separate trustee for one or more series of debt
     securities; or

  .  to make any change that does not materially adversely affect the rights
     of any debt security holder. (Section 10.01)

Legal Defeasance and Covenant Defeasance

   Debt securities of a series may be defeased at any time in accordance with
their terms and as set forth in the indenture and described briefly below,
unless the securities resolution establishing the terms of the series otherwise
provides. Any defeasance may terminate all of our obligations (with limited
exceptions) with respect to a series of debt securities and the indenture
("legal defeasance"), or it may terminate only our obligations under any
restrictive covenants which may be applicable to a particular series ("covenant
defeasance").

   We may exercise our legal defeasance option even though we have also
exercised our covenant defeasance option. If we exercise our legal defeasance
option, that series of debt securities may not be accelerated because

                                       11


of an event of default. If we exercise our covenant defeasance option, that
series of debt securities may not be accelerated by reference to any
restrictive covenants which may be applicable to that particular series.
(Section 8.01)

   To exercise either defeasance option as to a series of debt securities, we
must:

  .  irrevocably deposit in trust (the "defeasance trust") with the trustee
     or another trustee money or U.S. government obligations;

  .  deliver a certificate from a nationally recognized firm of independent
     accountants expressing their opinion that the payments of principal and
     interest when due on the deposited U.S. government obligations, without
     reinvestment, plus any deposited money without investment, will provide
     cash at the times and in the amounts necessary to pay the principal and
     interest when due on all debt securities of the series to maturity or
     redemption, as the case may be; and

  .  comply with certain other conditions. In particular, we must obtain an
     opinion of tax counsel that the defeasance will not result in
     recognition of any gain or loss to holders for federal income tax
     purposes.

U.S. government obligations are direct obligations of (a) the United States or
(b) an agency or instrumentality of the United States, the payment of which is
unconditionally guaranteed by the United States, which, in either case (a) or
(b), have the full faith and credit of the United States of America pledged for
payment and which are not callable at the issuer's option. It also includes
certificates representing an ownership interest in such obligations. (Section
8.02)

Certain Provisions Relating to Junior Subordinated Debentures Issued to the WEC
Trusts

   General. The junior subordinated debentures that we issue to a WEC Trust may
be issued in one or more series under the indenture with terms corresponding to
the terms of a series of preferred securities issued by that WEC Trust.
Concurrently with the issuance of each WEC Trust's preferred securities, the
WEC Trust will invest the proceeds from the sale of the preferred securities
and the consideration we pay for the common securities in a series of
corresponding junior subordinated debentures that we will issue to the WEC
Trust.

   Each series of corresponding junior subordinated debentures:

  .  will be unsecured;

  .  will be in the principal amount equal to the aggregate stated
     liquidation amount of the preferred securities and the common securities
     of the WEC Trust; and

  .  will rank equally with all other series of junior subordinated debt
     securities in terms of priority of payment.

   Unless provided otherwise in the prospectus supplement, holders of the
preferred securities issued by a WEC Trust that owns a series of corresponding
junior subordinated debentures will have the rights summarized above in
connection with modifications to the indenture or upon occurrence of a trust
event of default. See "Amendments and Waivers" and "Defaults and Remedies,"
above and "RELATIONSHIP AMONG THE PREFERRED SECURITIES, THE CORRESPONDING
JUNIOR SUBORDINATED DEBENTURES AND THE GUARANTEES--Enforcement Rights of
Holders of Preferred Securities."

   The prospectus supplement will describe specific terms relating to the
offering of the corresponding junior subordinated debentures. See "DESCRIPTION
OF DEBT SECURITIES--Terms."

   Unless otherwise specified in the applicable prospectus supplement, we will
covenant, as to each series of corresponding junior subordinated debentures:

  .  to maintain, directly or indirectly, 100% ownership of the common
     securities of the WEC Trust to which the corresponding junior
     subordinated debentures have been issued (provided that certain
     successors which are permitted pursuant to the indenture may succeed to
     our ownership of the common securities);


                                       12


  .  not to voluntarily dissolve, wind-up or liquidate any WEC Trust, except:

    --in connection with a distribution of the junior subordinated
     debentures to the holders of the preferred securities in liquidation
     of the WEC Trust; or

    --in connection with certain mergers, consolidations or amalgamations
     permitted by the related trust agreement; and

  .  to use our reasonable efforts, consistent with the terms and provisions
     of the related trust agreement, to cause such WEC Trust to remain
     classified as a grantor trust and not as an association taxable as a
     corporation for United States federal income tax purposes.

For additional covenants relating to payment of expenses of the WEC Trusts, see
"DESCRIPTION OF PREFERRED SECURITIES--Payment of Expenses."

   Option to Extend Interest Payment Date. Unless otherwise stated in the
applicable prospectus supplement, we will have the right at any time and from
time to time during the term of any series of corresponding junior subordinated
debentures to defer payments of interest for a specified number of consecutive
interest payment, or extension, periods. No extension period may extend beyond
the maturity date of that series of corresponding junior subordinated
debentures. We may pay at any time all or any portion of the interest accrued
to that point during a deferral period. At the end of the deferral period or at
a redemption date, we will be obligated to pay all interest accrued and unpaid
(together with interest on the unpaid interest to the extent permitted by
applicable law.) United States federal income tax consequences and special
considerations applicable to any corresponding junior subordinated debentures
for which an extension period has been elected will be described in the
applicable prospectus supplement. During any extension period, or while we are
in default, we will be restricted in our ability to make payments or incur
obligations related to our capital stock or debt securities ranking equal to or
below the junior subordinated debentures.

   Prior to the termination of any extension period, we may further extend the
interest payment period. However, the deferral period, together with all prior
and further extensions, may not exceed 20 consecutive quarters or extend beyond
the maturity date of the junior subordinated debentures. After the termination
of any deferral period and the payment of all amounts due, we may decide to
begin a new deferral period, subject to the above requirements.

   If the property trustee is the sole holder of the series of junior
subordinated debentures held by the WEC Trust, we will give the administrative
trustee and the property trustee notice of our selection of any deferral period
one business day prior to the earlier of:

  .  the next date distributions on the preferred securities are payable; or

  .  the date the WEC Trust is required to give notice to the New York Stock
     Exchange (or other applicable self-regulatory organization) or to
     holders of the preferred securities of the record date or the date any
     distribution is payable.

If the property trustee is not the sole holder of the series of junior
subordinated debentures, we will give the debenture holders notice of our
selection of any deferral period ten business days prior to the earliest of:

  .  the next interest payment date; or

  .  the date upon which we are required to give notice to the New York Stock
     Exchange (or other applicable self-regulatory organization) or to
     holders of the junior subordinated debentures of the record or payment
     date of any related interest payment.

   Redemption. The junior subordinated debentures and the applicable securities
resolution will provide the terms upon which we can redeem the junior
subordinated debentures at our option, and will specify a date prior to which
we will not be allowed to redeem the junior subordinated debentures, and after
which we will have the right to redeem the junior subordinated debentures, in
whole or in part, upon not less than 30 days nor more than 60 days notice to
the holder of the junior subordinated debentures at a redemption price or
prices stated in the applicable prospectus supplement.

                                       13


   If the junior subordinated debentures are redeemed only in part, they will
be redeemed pro rata or by lot or by any other method selected by the trustee.
If a partial redemption of the corresponding junior subordinated debentures
would result in delisting of the preferred securities issued by the WEC Trust
from any national securities exchange or other self-regulatory organization on
which the preferred securities are then listed, we will not be permitted to
effect a partial redemption and may only redeem the corresponding junior
subordinated debentures as a whole.

   Except as otherwise specified in the applicable prospectus supplement and
subject to the provisions of the applicable securities resolution, if a Tax
Event (as defined below) or an Investment Company Event (as defined below) in
respect of a WEC Trust occurs and is continuing, we have the option to redeem
the corresponding junior subordinated debentures held by the WEC Trust, in
whole but not in part, at any time within 90 days thereafter. If the applicable
WEC Trust is the holder of all outstanding corresponding junior subordinated
debentures, the proceeds of the redemption will be used by the WEC Trust to
redeem the corresponding preferred securities and common securities in
accordance with their terms.

   "Tax Event" means that the applicable WEC Trust will have received an
opinion of counsel (which may be counsel to us or an affiliate) experienced in
such matters to the effect that, as a result of any

  .  amendment to, or change (including any announced proposed change) in,
     the laws (or any regulations thereunder) of the United States or any
     political subdivision or taxing authority, or

  .  official administrative written decision, pronouncement or action or
     judicial decision interpreting or applying such laws or regulations,

in each case which amendment or change is effective or which proposed change,
pronouncement, action or decision is announced on or after the date of issuance
of the applicable series of junior subordinated debentures pursuant to the
applicable securities resolution, there is more than an insubstantial risk
that:

  .  the WEC Trust is, or will be within 90 days of the date of the opinion
     of counsel, subject to United States Federal income tax with respect to
     income received or accrued on the junior subordinated debentures;

  .  interest we pay on the corresponding junior subordinated debentures is
     not, or will not be within 90 days of the date of the opinion of
     counsel, deductible, in whole or in part, for United States Federal
     income tax purposes; or

  .  the WEC Trust is, or will be within 90 days of the date of the opinion
     of counsel, subject to more than a de minimis amount of other taxes,
     duties or other governmental charges.

   "Investment Company Event" means that the applicable WEC Trust will have
received an opinion of counsel experienced in such matters to the effect that,
as a result of the occurrence of a change in law or regulation or a change in
interpretation or application of law or regulation by any legislative body,
court, governmental agency or regulatory authority on or after the date of
original issuance of the preferred securities by the WEC Trust, the WEC Trust
is or will be considered an "investment company" that is required to be
registered under the Investment Company Act of 1940, as amended.

   Restrictions on Certain Payments. Unless otherwise provided in the
applicable prospectus supplement, we will promise, as to each series of junior
subordinated debentures issued to a WEC Trust, that we and our subsidiaries
will not:

  .  declare or pay any dividends or distributions on, or redeem, purchase,
     acquire, or make a liquidation payment with respect to, any of our
     capital stock, or

  .  make any payment of principal, interest or premium, if any, on or repay,
     repurchase or redeem any of our debt securities (including other junior
     subordinated debentures) that rank equally with or junior in interest to
     the junior subordinated debentures, or


                                       14


  .  make any guarantee payments with respect to any of the debt securities
     of any of our subsidiaries if the guarantee ranks equally with or junior
     in interest to the junior subordinated debentures

other than:

  .  dividends or distributions payable in our common stock;

  .  redemptions or purchases of any rights pursuant to our shareholder
     rights plan, if any, or any successor rights agreement, and the
     declaration of a dividend of rights or the issuance of stock under a
     rights agreement in the future;

  .  payments under any guarantee relating to the preferred securities of a
     WEC Trust;

  .  purchases of common stock related to the issuance of common stock under
     any benefit plans for our directors, officers or employees;

  .  obligations under any dividend reinvestment plan or stock purchase plan;
     and

  .  purchases of fractional interests in shares of our capital stock
     pursuant to the conversion or exchange provisions of a security being
     converted or exchanged for our capital stock.

These restrictions apply only if:

  .  at that time we have actual knowledge that an event has occurred that
     (a) with the giving of notice or the lapse of time, or both, would
     constitute an event of default under the indenture with respect to the
     junior subordinated debentures of that series and (b) we shall not have
     taken reasonable steps to cure the event, or

  .  the corresponding junior subordinated debentures are held by a WEC Trust
     which is the issuer of a series of related preferred securities, and we
     are in default with respect to payment of any obligations under the
     guarantee relating to those preferred securities, or

  .  we shall have given notice of our selection of a deferral of interest
     extension period as provided pursuant to the securities resolution with
     respect to the corresponding junior subordinated debentures and shall
     not have rescinded the notice, or the extension period shall be
     continuing.

Regarding the Trustee

   Bank One Trust Company, National Association (successor to The First
National Bank of Chicago) will act as trustee and registrar for debt securities
issued under the indenture and, unless otherwise indicated in a prospectus
supplement, the trustee will also act as transfer agent and paying agent with
respect to the debt securities. (Section 2.03) We may remove the trustee with
or without cause if we notify the trustee three months in advance and if no
default occurs during the three-month period. (Section 7.07) The trustee, in
its individual or any other capacity, may make loans to, accept deposits from,
and perform services for us or our affiliates, and may otherwise deal with us
or our affiliates, as if it were not the trustee.

   Bank One, N.A., an affiliate of the trustee, is a participating lender with
respect to our existing credit agreements for our commercial paper programs
($111 million), is a lender and administrative agent for a $75 million credit
arrangement for the Wisconsin Electric Nuclear Fuel Trust, and also provides
certain bank lines of credit to Wisconsin Electric ($13 million). One of our
directors is also a director of the bank and of the bank holding company.

                      DESCRIPTION OF PREFERRED SECURITIES

   The following section describes the general terms and provisions of the
preferred securities to which any prospectus supplement may relate. The
particular terms of the preferred securities offered by any WEC Trust and the
extent to which any of these general provisions do not apply to its preferred
securities will be described in the prospectus supplement relating to that WEC
Trust and its preferred securities.

                                       15


   Pursuant to the terms of the trust agreement for each WEC Trust, the
administrative trustees are authorized to issue the preferred securities and
the common securities on behalf of the WEC Trust. The preferred securities will
represent beneficial ownership interests in the assets of the WEC Trust. The
holders of the preferred securities will be entitled to a preference over
holders of the common securities of the WEC Trust in certain circumstances with
respect to distributions and amounts payable on redemption or liquidation.
Holders of preferred securities will also have certain other benefits as
described in the corresponding trust agreement.

   We have summarized selected provisions of the preferred securities and each
trust agreement below. This summary is not complete. The form of trust
agreement has been filed as an exhibit to the registration statement of which
this prospectus forms a part. You should read the form of trust agreement for
provisions that may be important to you. You should also consider applicable
provisions of the Trust Indenture Act. Each of the WEC Trusts is a legally
separate entity, and the assets of one are not available to satisfy the
obligations of the other.

General

   The preferred securities of a WEC Trust will rank equally, and payments on
the preferred securities will be made pro rata, with the common securities of
that WEC Trust except as described under "--Subordination of Common
Securities." Legal title to the corresponding junior subordinated debentures
will be held by the property trustee in trust for the benefit of the holders of
the related preferred securities and for us as holder of the common securities.
Each guarantee agreement we execute for the benefit of the holders of a WEC
Trust's preferred securities will be a guarantee on a junior subordinated basis
with respect to the related preferred securities but will not guarantee payment
of distributions or amounts payable on redemption or liquidation of the
preferred securities when the related WEC Trust does not have funds available
to make such payments. See "DESCRIPTION OF GUARANTEES."

Distributions

   Distributions on the preferred securities will be cumulative, will
accumulate from the date of original issuance and will be payable on the dates
specified in the applicable prospectus supplement. Except as specified in the
applicable prospectus supplement, in the event that any date on which
distributions are payable on the preferred securities is not a business day,
payment of the distribution will be made on the next succeeding day that is a
business day (without any interest or other payment in respect to the delay),
with the same force and effect as if made on the originally specified date.
However, if the next business day is in the next calendar year, payment of
distributions will be made on the preceding business day. Each date on which
distributions are payable is referred to in this prospectus as a distribution
date.

   A WEC Trust's preferred securities represent beneficial ownership interests
in the assets of that WEC Trust. The distributions on each preferred security
will be payable at a rate specified in the prospectus supplement for that
preferred security. The amount of distributions payable for any period will be
computed on the basis of a 360-day year of twelve 30-day months unless
otherwise specified in the applicable prospectus supplement. Distributions to
which holders of preferred securities are entitled will accumulate additional
distributions at the rate per annum specified in the applicable prospectus
supplement. Distributions on preferred securities as used in this prospectus
includes any additional distributions unless otherwise stated.

   The revenue of each WEC Trust available for distribution to holders of its
preferred securities will be limited to payments under the corresponding junior
subordinated debentures it owns. Each WEC Trust will invest the proceeds from
the issuance and sale of its trust securities in the corresponding junior
subordinated debentures, and it will have no other assets. See "DESCRIPTION OF
DEBT SECURITIES--Certain Provisions Relating to Junior Subordinated Debentures
Issued to the WEC Trusts." If we do not make interest payments on the
corresponding junior subordinated debentures, the property trustee will not
have funds available to pay distributions on the related preferred securities.
We have guaranteed the payment of distributions (if and to the extent the WEC
Trust has funds legally available for the payment of distributions and cash
sufficient to make the payments) on a limited basis as set forth herein under
"DESCRIPTION OF GUARANTEES."

                                       16


   Distributions on the preferred securities will be payable to the holders as
they appear on the register of the WEC Trust on the relevant record dates,
which, as long as the preferred securities remain in book-entry form, will be
one business day prior to the relevant distribution date. Subject to any
applicable laws and regulations and to the provisions of the applicable trust
agreement, each distribution payment will be made as described under "BOOK-
ENTRY ISSUANCE." In the event any preferred securities are not in book-entry
form, the relevant record date for such preferred securities shall be a date at
least 15 days prior to the relevant distribution date, as specified in the
applicable prospectus supplement.

Payment of Expenses

   Pursuant to the indenture, we have agreed to pay all debts and obligations
(other than distributions on the trust securities) and all costs and expenses
of the WEC Trusts and to pay any and all taxes, duties, assessments or other
governmental charges (other than United States withholding taxes) imposed by
the United States or any other taxing authority. This includes, but is not
limited to, all costs and expenses relating to the organization of the WEC
Trusts, the fees and expenses of the property trustee, the Delaware trustee and
the administrative trustees and all costs and expenses relating to the
operation of the WEC Trusts. As a result, the net amounts received and retained
by a WEC Trust after paying these fees, expenses, debts and obligations will be
equal to the amounts the WEC Trust would have received and retained had no
fees, expenses, debts and obligations been incurred by or imposed on it. Our
promise to pay these obligations is for the benefit of, and shall be
enforceable by, any creditor to whom the fees, expenses, debts and obligations
are owed, whether or not the creditor has received notice of the promise. Any
creditor may enforce these obligations directly against us, and we have agreed
to irrevocably waive any right or remedy that would otherwise require that any
creditor take any action against the WEC Trust or any other person before
proceeding against us. We will execute such additional agreements as may be
necessary to give full effect to these promises.

Redemption or Exchange

   If we repay or redeem, in whole or in part, any junior subordinated
debentures that have been issued to a WEC Trust, whether at maturity or
earlier, the proceeds from the repayment or redemption shall be applied by the
property trustee to redeem a like amount of the trust securities. The property
trustee will give not less than 30 nor more than 60 days notice, and the
redemption price will be equal to the sum of:

  .  the aggregate liquidation amount of the trust securities being redeemed;
     plus

  .  accumulated but unpaid distributions on to the redeemed trust securities
     to the date of redemption; plus

  .  the related amount of the premium, if any, that we pay upon the
     concurrent redemption of corresponding junior subordinated debentures.

See "DESCRIPTION OF DEBT SECURITIES--Certain Provisions Relating to Junior
Subordinated Debentures Issued to the WEC Trusts--Redemption."

   If we are repaying or redeeming less than all of any series of junior
subordinated debentures on a redemption date, then the proceeds from the
repayment or redemption shall be allocated to redeem the related trust
securities pro rata. The amount of premium, if any, that we pay to redeem all
or any part of any series of any corresponding junior subordinated debentures
will also be allocated to the redemption pro rata of the related trust
securities.

   We will have the right to redeem any series of junior subordinated
debentures:

  .  subject to the conditions described under "DESCRIPTION OF DEBT
     SECURITIES--Certain Provisions Relating to Junior Subordinated
     Debentures Issued to the WEC Trusts--Redemption"; or

  .  as may be otherwise specified in the applicable prospectus supplement.


                                       17


   We have the right to dissolve a WEC Trust at any time and, after
satisfaction of any liabilities to creditors of the WEC Trust as provided by
applicable law, to cause the corresponding junior subordinated debentures owned
by the WEC Trust to be distributed to the holders of the related preferred
securities and common securities in liquidation of the WEC Trust.

   If provided in the applicable prospectus supplement, we will have the right
to extend or shorten the maturity of any series of junior subordinated
debentures at the time that we exercise our right to elect to dissolve the
related WEC Trust and cause the corresponding junior subordinated debentures to
be distributed to the holders of the related preferred securities and common
securities in liquidation of the WEC Trust. However, we can extend the maturity
only if the conditions specified in the applicable prospectus supplement are
met at the time the election is made and at the time of the extension.

   After the liquidation date fixed for any distribution of corresponding
junior subordinated debentures to the holders of any series of preferred
securities:

  .  that series of preferred securities will no longer be deemed to be
     outstanding;

  .  The Depository Trust Company (DTC) or its nominee, as the record holder
     of the preferred securities, will receive a registered global
     certificate or certificates representing the corresponding junior
     subordinated debentures to be delivered in the distribution; and

  .  any certificates representing that series of preferred securities not
     held by DTC or its nominee will be deemed to represent the corresponding
     junior subordinated debentures having a principal amount equal to the
     stated liquidation amount of that series of preferred securities, and
     bearing accrued and unpaid interest in an amount equal to the accrued
     and unpaid distributions on that series of preferred securities until
     the certificates are presented to the administrative trustees or their
     agent for transfer or reissuance.

   We cannot predict the market prices for the preferred securities or the
corresponding junior subordinated debentures that may be distributed in
exchange for preferred securities. As a result, the preferred securities that
an investor may purchase, or the corresponding junior subordinated debentures
that an investor may receive on dissolution and liquidation of a WEC Trust, may
trade at a lower price than the investor paid to purchase the preferred
securities.

Redemption and Exchange Procedures

   Any preferred securities that are redeemed on any redemption date will
receive the redemption price from the contemporaneous redemption of the
corresponding junior subordinated debentures. Redemptions of the preferred
securities will be made and the redemption price will be payable on each
redemption date only to the extent that the related WEC Trust has funds on hand
available for the payment of such redemption price. See "Subordination of
Common Securities."

   If a WEC Trust gives a notice of redemption in respect of its preferred
securities, then, by 12:00 noon, New York City time, on the redemption date, to
the extent funds are available, the property trustee will deposit irrevocably
with DTC funds sufficient to pay the applicable redemption price and will give
DTC irrevocable instructions and authority to pay the redemption price to the
holders of such preferred securities. See "BOOK-ENTRY ISSUANCE." If the
preferred securities are no longer in book-entry form, the property trustee, to
the extent funds are available, will irrevocably deposit with the paying agent
for the preferred securities funds sufficient to pay the applicable redemption
price and will give the paying agent irrevocable instructions and authority to
pay the redemption price to the holders thereof upon surrender of their
certificates evidencing the preferred securities.

   Nevertheless, distributions payable on or prior to the redemption date for
any preferred securities called for redemption shall be payable to the holders
of such preferred securities on the relevant record dates for the related
distribution dates. If notice of redemption shall have been given and funds
deposited as required, then

                                       18


upon the date of such deposit, all rights of the holders of the preferred
securities called for redemption will cease, except the right of the holders of
the preferred securities to receive the redemption price, but without interest
on the redemption price, and the preferred securities will cease to be
outstanding.

   Except as specified in the applicable prospectus supplement, in the event
that any date fixed for redemption of preferred securities is not a business
day, then payment of the redemption price payable on such date will be made on
the next succeeding day which is a business day (and without any interest or
other payment in respect of any delay). However, if the next business day is in
the next calendar year, the redemption price will be payable on the preceding
business day. In the event that payment of the redemption price in respect of
preferred securities called for redemption is improperly withheld or refused
and not paid either by the WEC Trust or by us pursuant to the guarantee as
described under "DESCRIPTION OF GUARANTEES," then:

  .  distributions on those preferred securities will continue to accrue at
     the then applicable rate, from the redemption date originally
     established by the WEC Trust for those preferred securities to the date
     the redemption price is actually paid; and

  .  the actual payment date will be the date fixed for redemption for
     purposes of calculating the redemption price.

   Subject to applicable law (including, without limitation, United States
federal securities law), we or our subsidiaries may at any time and from time
to time purchase outstanding preferred securities by tender, in the open market
or by private agreement.

   Payment of the redemption price on the preferred securities and any
distribution of corresponding junior subordinated debentures to holders of
preferred securities will be made to the applicable record holders thereof as
they appear on the register for the preferred securities on the relevant record
date. Except as provided in the next sentence, the record date will be one
business day prior to the relevant redemption date or liquidation date, as
applicable. However, if any preferred securities are not in book-entry form,
the relevant record date for those preferred securities shall be a date at
least 15 days prior to the redemption date or liquidation date, as applicable,
as specified in the applicable prospectus supplement.

   If less than all of the preferred securities and common securities issued by
a WEC Trust are to be redeemed on a redemption date, then the aggregate
liquidation amount of preferred securities and common securities to be redeemed
shall be allocated pro rata to the preferred securities and the common
securities based upon the relative liquidation amounts of the two classes. The
particular preferred securities to be redeemed shall be selected on a pro rata
basis not more than 60 days prior to the redemption date by the property
trustee from the outstanding preferred securities not previously called for
redemption. The property trustee shall promptly notify the trust registrar in
writing of the preferred securities selected for redemption and, in the case of
any preferred securities selected for partial redemption, the liquidation
amount to be redeemed. For all purposes of each trust agreement, unless the
context otherwise requires, all provisions relating to the redemption of
preferred securities shall relate, in the case of any preferred securities
redeemed or to be redeemed only in part, to the portion of the aggregate
liquidation amount of preferred securities which has been or is to be redeemed.

   Notice of any redemption will be mailed at least 30 days but not more than
60 days before the redemption date to each holder of trust securities to be
redeemed at the holder's registered address. Unless we default in payment of
the redemption price on the corresponding junior subordinated debentures, on
and after the redemption date interest ceases to accrue on the corresponding
junior subordinated debentures or portions thereof (and distributions cease to
accrue on the related preferred securities or portions thereof) called for
redemption.

                                       19


Subordination of Common Securities

   Payment of distributions on, and the redemption price of, each WEC Trust's
preferred securities and common securities, as applicable, generally shall be
made pro rata based on the liquidation amount of the preferred securities and
of the common securities. However, if on any distribution date or redemption
date an event of default with respect to any corresponding junior subordinated
debenture shall have occurred and be continuing, then:

  .  neither we nor the WEC Trust shall pay any distribution on, or
     redemption price of, any of the WEC Trust's common securities, and
     neither we nor the WEC Trust shall make any other payment on account of
     the redemption, liquidation or other acquisition of such common
     securities, unless

    --all accumulated and unpaid distributions on all of the WEC Trust's
     outstanding preferred securities are paid in cash for all distribution
     periods terminating on or prior to any payment on the common
     securities, and

    --in the case of a payment of the redemption price, the full amount of
     the redemption price on all of the WEC Trust's outstanding preferred
     securities then called for redemption shall have been paid or provided
     for; and

  .  all funds available to the property trustee shall first be applied to
     the payment in full in cash of all distributions on, or redemption price
     of, the WEC Trust's preferred securities then due and payable.

   In the case of any event of default with respect to any corresponding junior
subordinated debentures, we (as holder of the WEC Trust's common securities)
will be deemed to have waived any right to act with respect to the event of
default under the applicable trust agreement until the effect of all events of
default with respect to such preferred securities has been cured, waived or
otherwise eliminated. Until any events of default under the applicable trust
agreement with respect to the preferred securities have been cured, waived or
otherwise eliminated, the property trustee is required to act solely on behalf
of the holders of the preferred securities and not on our behalf as holder of
the WEC Trust's common securities, and only the holders of such preferred
securities will have the right to direct the property trustee to act on their
behalf.

Liquidation Distribution upon Dissolution

   Pursuant to each trust agreement, each WEC Trust shall automatically
dissolve upon expiration of its term and shall dissolve on the first to occur
of:

  .  specified events relating to our bankruptcy, dissolution or liquidation;

  .  our written direction to the property trustee, as depositor, to dissolve
     the WEC Trust and distribute the corresponding junior subordinated
     debentures to the holders of the preferred securities in exchange for
     the preferred securities (which direction is optional and wholly within
     our discretion as depositor);

  .  the redemption of all of the WEC Trust's trust securities; and

  .  the entry of an order for the dissolution of the WEC Trust by a court of
     competent jurisdiction.

   If an early dissolution occurs in any manner except by the redemption of all
of the trust securities, then the WEC Trust will be liquidated by the issuer
trustees as expeditiously as the issuer trustees determine to be possible.
Except as provided in the next sentence, the issuer trustees shall distribute
(after satisfaction of any liabilities to creditors of such WEC Trust as
provided by applicable law) to the holders of such trust securities a like
amount of the corresponding junior subordinated debentures. However, if such a
distribution is determined by the property trustee not to be practical, the
holders of the trust securities will be entitled to receive out of the assets
of the WEC Trust available for distribution to holders (after satisfaction of
any liabilities to creditors of the WEC Trust as provided by applicable law) a
liquidation distribution in an amount equal to, in the case of holders of
preferred securities, the aggregate of the liquidation amount plus accrued and
unpaid distributions

                                       20


thereon to the date of payment. If the liquidation distribution can be paid
only in part because the WEC Trust has insufficient assets available to pay in
full the aggregate liquidation distribution, then the amounts payable directly
by the WEC Trust on its preferred securities will be paid on a pro rata basis.

   As the holder of the WEC Trust's common securities, we will be entitled to
receive distributions upon any liquidation pro rata with the holders of its
preferred securities. However, if an event of default relating to the
corresponding junior subordinated debentures has occurred and is continuing,
the preferred securities will have a priority over the common securities.

Events of Default; Notice

   Any one of the following events constitutes a trust "event of default" under
each trust agreement with respect to the preferred securities issued thereunder
(whatever the reason for the trust event of default):

  .  the occurrence of an event of default with respect to a corresponding
     series of junior subordinated debentures issued under the indenture to
     the trust (see "DESCRIPTION OF DEBT SECURITIES--Defaults and Remedies");
     or

  .  default by the property trustee in the payment of any distribution when
     it becomes due and payable, and continuation of the default for a period
     of 60 days; or

  .  default by the property trustee in the payment of any redemption price
     of any trust security when it becomes due and payable; or

  .  default in the performance, or breach, in any material respect, of any
     covenant or warranty of the issuer trustees in the trust agreement
     (other than a default in the payment of any distribution or any
     redemption price as provided above), and continuation of that default or
     breach for a period of 90 days after there has been given, by registered
     or certified mail, to the defaulting issuer trustee or trustees by the
     holders of at least 25% in aggregate liquidation preference of the
     outstanding preferred securities of the applicable WEC Trust, a written
     notice specifying the default or breach and requiring it to be remedied
     and stating that the notice is a "notice of default" under the trust
     agreement; or

  .  the occurrence of specified events of bankruptcy or insolvency with
     respect to the property trustee and our failure to appoint a successor
     property trustee within 60 days.

   Within 90 days after the occurrence of any trust event of default actually
known to the property trustee, the property trustee is required to transmit
notice of the trust event of default to the holders of the WEC Trust's
preferred securities, to the administrative trustees and to us, as depositor,
unless the trust event of default shall have been cured or waived. We and the
administrative trustees are required to file annually with the property trustee
a certificate as to whether or not we each are in compliance with all the
conditions and covenants applicable to us under each trust agreement.

   If an event of default with respect to a corresponding junior subordinated
debenture has occurred and is continuing, the preferred securities shall have a
preference over the common securities upon termination of the WEC Trust as
described above. See "Liquidation Distribution upon Dissolution." The existence
of a trust event of default does not entitle the holders of preferred
securities to cause the redemption of the preferred securities.

Removal of Issuer Trustees

   We as the holder of the common securities may remove an administrative
trustee at any time. Unless an event of default with respect to a corresponding
junior subordinated debenture shall have occurred and be continuing, we as the
holder of the common securities may also remove the property trustee or the
Delaware trustee at any time. If a trust event of default resulting from an
event of default with respect to a corresponding junior subordinated debenture
has occurred and is continuing, the property trustee and the Delaware trustee

                                       21


may be removed at such time by the holders of a majority in liquidation amount
of the outstanding preferred securities. In no event will the holders of the
preferred securities have the right to vote to appoint, remove or replace the
administrative trustees: that right belongs exclusively to us as the holder of
the common securities. No resignation or removal of an issuer trustee and no
appointment of a successor trustee will be effective until the successor
trustee accepts its appointment in accordance with the provisions of the
applicable trust agreement.

Co-trustees and Separate Property Trustee

   Unless a trust event of default shall have occurred and be continuing, at
any time or times, for the purpose of meeting the legal requirements of the
Trust Indenture Act or of any jurisdiction in which any part of the trust
property may at the time be located, we (as the holder of the common
securities) and the administrative trustees shall have power to appoint one or
more persons either to act as a co-trustee, jointly with the property trustee,
of all or any part of the trust property, or to act as separate trustee of any
such property, in either case with such powers as may be provided in the
instrument of appointment, and to vest in such person or persons in such
capacity any property, title, right or power deemed necessary or desirable,
subject to the provisions of the applicable trust agreement. In case an event
of default with respect to a corresponding junior subordinated debenture has
occurred and is continuing, the property trustee alone will have power to make
such an appointment.

Merger or Consolidation of Issuer Trustees

   Any corporation into which the property trustee, the Delaware trustee or any
administrative trustee that is not a natural person may be merged or converted
or with which it may be consolidated, or any corporation resulting from any
merger, conversion or consolidation to which such trustee shall be a party, or
any corporation succeeding to all or substantially all the corporate trust
business of such trustee, shall be the successor of such trustee under each
trust agreement, provided such corporation shall be otherwise qualified and
eligible.

Mergers, Consolidations, Conversions, Amalgamations or Replacements of the WEC
Trusts

   A WEC Trust may not merge with or into, consolidate, convert into,
amalgamate, or be replaced by, or convey, transfer or lease its properties and
assets substantially as an entirety to any corporation or other person, except
as described below, as described in "Liquidation Distribution upon Dissolution"
or as described in the prospectus supplement with respect to the preferred
securities. A WEC Trust may, at our request, with the consent of the
administrative trustees and without the consent of the property trustee, the
Delaware trustee or the holders of the preferred securities, merge with or
into, consolidate, convert into, amalgamate, or be replaced by or convey,
transfer or lease its properties and assets substantially as an entirety to a
trust organized as such under the laws of any state; provided, that:

  .  the successor entity either (a) expressly assumes all of the obligations
     of the WEC Trust with respect to the preferred securities or (b)
     substitutes for the preferred securities other successor securities
     having substantially the same terms as the preferred securities so long
     as the successor securities rank the same as the preferred securities
     rank in priority with respect to distributions and payments upon
     liquidation, redemption and otherwise;

  .  we expressly appoint a trustee of such successor entity possessing the
     same powers and duties as the property trustee as the holder of the
     corresponding junior subordinated debentures;

  .  the successor securities are listed, or any successor securities will be
     listed upon notification of issuance, on any national securities
     exchange or other organization on which the preferred securities are
     then listed, if any;

                                       22


  .  the merger, consolidation, conversion, amalgamation, replacement,
     conveyance, transfer or lease does not cause the preferred securities
     (including any successor securities) to be downgraded by a nationally
     recognized statistical rating organization;

  .  the merger, consolidation, conversion, amalgamation, replacement,
     conveyance, transfer or lease does not adversely affect the rights,
     preferences and privileges of the holders of the preferred securities
     (including any successor securities) in any material respect;

  .  the successor entity has a purpose substantially similar to that of the
     WEC Trust;

  .  prior to the merger, consolidation, conversion, amalgamation,
     replacement, conveyance, transfer or lease, we have received an opinion
     from independent counsel to the WEC Trust experienced in such matters to
     the effect that

    --the merger, consolidation, conversion, amalgamation, replacement,
     conveyance, transfer or lease does not adversely affect the rights,
     preferences and privileges of the holders of the preferred securities
     (including any successor securities) in any material respect, and

    --following the merger, consolidation, conversion, amalgamation,
     replacement, conveyance, transfer or lease, neither the WEC Trust nor
     such successor entity will be required to register as an investment
     company under the Investment Company Act; and

  .  we or any permitted successor or assignee owns all of the common
     securities of the successor entity and guarantees the obligations of the
     successor entity under the successor securities at least to the extent
     provided by the guarantee.

Notwithstanding the general provisions described above, a WEC Trust shall not,
except with the consent of holders of 100% in liquidation amount of the
preferred securities, merge with or into, consolidate, convert into,
amalgamate, or be replaced by or convey, transfer or lease its properties and
assets substantially as an entirety to any other entity or permit any other
entity to consolidate, amalgamate, merge with or into, or replace it if such
merger, consolidation, conversion, amalgamation, replacement, conveyance,
transfer or lease would cause the WEC Trust or the successor entity to be
classified as other than a grantor trust for United States federal income tax
purposes.

Voting Rights; Amendment of Each Trust Agreement

   The holders of the preferred securities will have only the voting rights
described below and under "DESCRIPTION OF GUARANTEES--Amendments and
Assignment," plus any voting rights required by law.

   Each trust agreement may be amended from time to time by us, the property
trustee and the administrative trustees, without the consent of the holders of
the preferred securities:

  .  to cure any ambiguity, correct or supplement any provisions in the trust
     agreement that may be inconsistent with any other provision, or to
     address matters or questions arising under the trust agreement in a way
     which is consistent with the other provisions of the trust agreement; or

  .  to modify, eliminate or add to any provisions of the trust agreement if
     necessary to ensure that the WEC Trust will be classified for United
     States federal income tax purposes as a grantor trust or to ensure that
     the WEC Trust will not be required to register as an "investment
     company" under the Investment Company Act.

However, in the case of the first clause, the action must not adversely affect
in any material respect the interests of any holder of trust securities. Any
amendment of the trust agreement becomes effective when we give notice of the
amendment to the holders of the trust securities.

                                       23


   Each trust agreement may be amended by us and the issuer trustees with:

  .  the consent of holders representing not less than a majority (based upon
     liquidation amounts) of the outstanding trust securities; and

  .  receipt by the issuer trustees of an opinion of counsel experienced in
     such matters to the effect that the amendment or the exercise of any
     power granted to the issuer trustees in accordance with the amendment
     will not affect the WEC Trust's status as a grantor trust for United
     States federal income tax purposes or the WEC Trust's exemption from
     status as an "investment company" under the Investment Company Act.

However, without the consent of each holder of trust securities, no amendment
may:

  .  change the amount or timing of any distribution on the trust securities
     or otherwise adversely affect the amount of any distribution required to
     be made in respect of the trust securities as of a specified date; or

  .  restrict the right of a holder of trust securities to sue for the
     enforcement of any distribution payment.

   The property trustee is required to notify each holder of preferred
securities whenever the property trustee is notified of a default with respect
to the corresponding junior subordinated debentures. Furthermore, so long as
any junior subordinated debentures are held by the property trustee, the issuer
trustees are not permitted to:

  .  direct the time, method and place of conducting any proceeding for any
     remedy available to the trustee under the indenture, or execute any
     trust or power conferred on the property trustee with respect to the
     corresponding junior subordinated debentures;

  .  waive any past default that is waivable under the indenture governing
     the junior subordinated debentures;

  .  exercise any right to rescind or annul a declaration that the principal
     of all the corresponding junior subordinated debentures shall be due and
     payable; or

  .  give a required consent to any amendment, modification or termination of
     the indenture, the applicable securities resolution or the corresponding
     junior subordinated debentures

unless, in each case, they first obtain the approval of the holders of a
majority in aggregate liquidation amount of all outstanding preferred
securities. However, where the indenture requires the consent of each affected
holder of corresponding junior subordinated debentures, the property trustee
cannot give the consent without first obtaining the consent of each holder of
the related preferred securities. The issuer trustees cannot revoke any action
previously authorized or approved by a vote of the holders of the preferred
securities except by subsequent vote of the holders of the preferred
securities.

   In addition to obtaining approval of the holders of the preferred securities
as described above, the issuer trustees are required to obtain an opinion of
counsel to the effect that the proposed action will not cause the WEC Trust to
be classified as a corporation for United States federal income tax purposes.

   Any required approval of holders of preferred securities may be given either
at a meeting of holders of preferred securities or pursuant to a written
consent. The property trustee must notify record holders of preferred
securities of any meeting in the manner set forth in each trust agreement.

   No vote or consent of the holders of preferred securities will be required
for a WEC Trust to redeem and cancel its preferred securities in accordance
with the applicable trust agreement.

   Whenever holders of preferred securities are entitled to vote or consent
under any of the circumstances described above, neither we nor the issuer
trustees will be permitted to vote. For purposes of any vote or consent, any of
the preferred securities that we own (or that are owned by the issuer trustees
or our affiliates) will be treated as if they were not outstanding.

                                       24


Payment and Paying Agency

   The depositary for the preferred securities will make payments in respect of
the preferred securities by crediting the relevant accounts at the depositary
on the applicable distribution dates. If any WEC Trust's preferred securities
are not held by the depositary, then the paying agent will mail checks to
registered holders of the preferred securities as their addresses appear on its
Register. Unless otherwise specified in the applicable prospectus supplement,
the paying agent shall initially be the property trustee and any co-paying
agent chosen by the property trustee and acceptable to the administrative
trustees and to us. The paying agent can resign upon 30 days' written notice to
the property trustee and to us. If the property trustee resigns as paying
agent, the administrative trustees will appoint a bank or trust company
acceptable to the administrative trustees and to us to act as paying agent.

Registrar and Transfer Agent

   Unless otherwise specified in the applicable prospectus supplement, the
property trustee will act as registrar and transfer agent for the preferred
securities.

   Each WEC Trust will register transfers of preferred securities without
charge, but will require payment of any tax or other governmental charges that
may be imposed in connection with any transfer or exchange. The WEC Trusts will
not register transfers of their preferred securities after the relevant
preferred securities are called for redemption.

Information Concerning the Property Trustee

   The property trustee undertakes to perform only the duties that are
specifically set forth in each trust agreement, other than during the
continuance of a trust event of default. After a trust event of default, the
property trustee is required to exercise the same degree of care and skill as a
prudent person would exercise or use in the conduct of his or her own affairs.
Subject to this provision, the property trustee has no obligation to exercise
any of its powers under the applicable trust agreement at the request of any
holder of preferred securities unless it is offered reasonable indemnity
against the costs, expenses and liabilities that it might incur by doing so. If
no trust event of default has occurred and is continuing and the property
trustee is required to decide between alternative courses of action, construe
ambiguous provisions in the applicable trust agreement or is unsure of the
application of any provision of the applicable trust agreement, then we will
have the right to tell the property trustee which action to take unless the
matter is one on which holders of preferred securities are entitled to vote. If
we don't give any directions, the property trustee will take whatever action it
deems advisable and in the best interests of the holders of the trust
securities. The property trustee will have no liability except for its own bad
faith, negligence or willful misconduct.

Miscellaneous

   The administrative trustees are authorized and directed to operate the WEC
Trusts in such a way that:

  .  no WEC Trust will be:

    --deemed to be an "investment company" required to be registered under
     the Investment Company Act; or

    --classified as an association taxable as a corporation for United
     States federal income tax purposes; and

  .  the corresponding junior subordinated debentures will be treated as our
     indebtedness for United States federal income tax purposes.

We and the administrative trustees are authorized to take any lawful action
(consistent with the certificate of trust of each WEC Trust and each trust
agreement) that we and the administrative trustees determine in our discretion
to be necessary or desirable for these purposes, as long as the action does not
materially and adversely affect the interests of the holders of the related
preferred securities.

                                       25


   Holders of the preferred securities have no preemptive or similar rights.

   No WEC Trust may borrow money or issue debt or mortgage or pledge any of its
assets.

                           DESCRIPTION OF GUARANTEES

   When the trust securities are issued, we will execute and deliver a
guarantee agreement for the benefit of the holders of the preferred securities.
The guarantee agreement will be qualified as an indenture under the Trust
Indenture Act. Bank One Trust Company, National Association will act as
guarantee trustee under each guarantee for the purposes of compliance with the
Trust Indenture Act, and will hold the guarantee for the benefit of the holders
of the related WEC Trust's preferred securities.

   We have summarized certain provisions of the guarantees below. This summary
is not complete. The form of the guarantee agreement has been filed as an
exhibit to the registration statement of which this prospectus forms a part,
and you should read the guarantee agreement for provisions that may be
important to you. Reference in this summary to preferred securities means that
WEC Trust's preferred securities to which a guarantee relates.

General

   We will promise to pay the guarantee payments to the holders of the
preferred securities, as and when due, regardless of any defense, right of set-
off or counterclaim that the WEC Trust may have or assert other than the
defense of payment. The guarantee payments will rank equal to the corresponding
junior subordinated debentures and will be junior and subordinated to our
senior debt and subordinated debt. The guarantee payments include the
following, to the extent not paid by or on behalf of the related WEC Trust:

  .  any accumulated and unpaid distributions required to be paid on the
     preferred securities, but only if and to the extent that the applicable
     WEC Trust has funds on hand available for the distributions at that
     time;

  .  the redemption price with respect to any preferred securities called for
     redemption, if and to the extent that the applicable WEC Trust has funds
     on hand available to pay the redemption price at that time; or

  .  upon a voluntary or involuntary dissolution, winding up or liquidation
     of a WEC Trust (unless the corresponding junior subordinated debentures
     are distributed to the holders of the preferred securities), the lesser
     of:

    --the liquidation distribution; and

    --the amount of assets of the applicable WEC Trust remaining available
     for distribution to holders of preferred securities.

   Our obligation to make a guarantee payment may be satisfied either by our
direct payment of the required amounts to the holders of the applicable
preferred securities or by causing the WEC Trust to pay them.

   Each guarantee will be an irrevocable guarantee on a junior subordinated
basis of the related WEC Trust's obligations under the preferred securities,
but will apply only to the extent that the related WEC Trust has funds
sufficient to make the required payments. The guarantee is a guarantee of
payment, not a guarantee of collection.

   If we do not make interest payments on the corresponding junior subordinated
debentures held by a WEC Trust, the WEC Trust will not be able to pay
distributions on the preferred securities. Each guarantee will rank subordinate
and junior in right of payment to all of our senior indebtedness and
subordinated indebtedness. See "Status of the Guarantees." Also, all of our
consolidated operating assets are owned by our subsidiaries, and most are owned
by regulated utilities. Various financing arrangements and regulatory
requirements impose

                                       26


restrictions on the ability of our utility subsidiaries to transfer funds to us
in the form of cash dividends, loans or advances. Under Wisconsin law, our
utility subsidiaries are prohibited from loaning funds, either directly or
indirectly, to us. We rely on funds obtained from our subsidiaries to meet our
obligations for payment of principal and interest on our outstanding debt
obligations and corporate expenses. Accordingly, our obligations under the
guarantees will be effectively subordinated to all existing and future
liabilities of our subsidiaries and could be affected by regulatory
limitations. See "DESCRIPTION OF DEBT SECURITIES--General" and "Ranking of Debt
Securities." Except as otherwise provided in the applicable prospectus
supplement, we and our subsidiaries are not limited in the amount of secured or
unsecured debt that we may have outstanding. See the prospectus supplement
relating to any offering of preferred securities.

   We have also agreed to guarantee the obligations of the WEC Trusts with
respect to the common securities to the same extent as the guarantee to holders
of the preferred securities. However, if there is an event of default with
respect to a corresponding junior subordinated debenture, holders of preferred
securities will have priority over holders of common securities.

   Our obligations described herein and in any accompanying prospectus
supplement, through the applicable guarantee agreement, the applicable trust
agreement, the corresponding junior subordinated debentures, and the applicable
securities resolution under the indenture, taken together, constitute our full,
irrevocable and unconditional guarantee of payments due on the preferred
securities. No single document standing alone or operating in conjunction with
fewer than all of the other documents constitutes the guarantee. It is only the
combined operation of these documents that has the effect of providing a full,
irrevocable and unconditional guarantee of the WEC Trust's obligations under
the preferred securities. See "THE WEC TRUSTS," "DESCRIPTION OF PREFERRED
SECURITIES," and "DESCRIPTION OF DEBT SECURITIES--Certain Provisions Relating
to Junior Subordinated Debentures Issued to the WEC Trusts."

Status of the Guarantees

   Each guarantee will constitute our unsecured obligation and will rank
subordinate and junior in right of payment to all of our senior debt and
subordinated debt.

   Each guarantee will rank equally with all other guarantees we issue relating
to preferred securities issued by the WEC Trusts. Each guarantee will
constitute a guarantee of payment and not of collection (i.e., the guaranteed
party may institute a legal proceeding directly against us as the guarantor to
enforce its rights under the guarantee without first suing anyone else). Each
guarantee will be held for the benefit of the holders of the related preferred
securities. Each guarantee will be discharged only by payment of the guarantee
payments in full (to the extent not paid by the WEC Trust) or by distribution
of the corresponding junior subordinated debentures to the holders of the
preferred securities. None of the guarantees places a limitation on the amount
of additional senior indebtedness or subordinated indebtedness that we may
incur. We expect from time to time to incur additional indebtedness
constituting senior indebtedness or subordinated indebtedness.

Amendments and Assignment

   Except with respect to any changes which do not adversely affect the rights
of holders of the related preferred securities in any material respect (in
which case no vote will be required), no guarantee may be amended without the
prior approval of the holders of not less than a majority of the aggregate
liquidation amount of the related outstanding preferred securities. The manner
of obtaining any required approval will be as set forth under "DESCRIPTION OF
PREFERRED SECURITIES--Voting Rights; Amendment of Each Trust Agreement." All
guarantees and agreements contained in each guarantee agreement will bind our
successors, assigns, receivers, trustees and representatives and will benefit
the holders of the related preferred securities then outstanding.

Events of Default

   We will be in default under any guarantee agreement if (a) we don't make
required payments or (b) we are notified that we haven't performed some other
obligation and have not cured that failure within 90 days.

                                       27


   The holders of a majority in aggregate liquidation amount of the related
preferred securities have the right:

  .  to direct the time, method and place of conducting any proceeding for
     any remedy available to the guarantee trustee in respect of the
     guarantee agreement; or

  .  to direct the exercise of any power conferred upon the guarantee trustee
     under the guarantee agreement.

Holders of a majority in aggregate liquidation amount of the related preferred
securities also have the right to waive any past event of default and its
consequences.

   Any holder of the preferred securities may institute a legal proceeding
directly against us to enforce the WEC Trust's rights under the guarantee
agreement without first instituting a legal proceeding against the WEC Trust,
the guarantee trustee or anyone else.

   As guarantor, we are required to file annually with the guarantee trustee a
certificate stating whether or not we are in compliance with all the
conditions and covenants applicable to us under the guarantee agreement.

Information Concerning the Guarantee Trustee

   The guarantee trustee promises to perform only the duties that are
specifically set forth in each guarantee agreement, other than during the
occurrence and continuance of a default by us in performance of any guarantee.
After we default and while the default continues, the guarantee trustee must
exercise the same degree of care and skill as a prudent person would exercise
or use in the conduct of his or her own affairs. Subject to this provision,
the guarantee trustee is under no obligation to exercise any of the powers
vested in it by any guarantee agreement at the request of any holder of any
preferred securities unless it is offered reasonable indemnity against the
costs, expenses and liabilities that it might incur by doing so.

Termination of the Guarantees

   Each guarantee will terminate upon full payment of the redemption price of
the related preferred securities, upon full payment of the amounts payable
upon liquidation of the related WEC Trust or upon distribution of
corresponding junior subordinated debentures to the holders of the related
preferred securities. Each guarantee will continue to be effective or will be
reinstated, as the case may be, if at any time any holder of the related
preferred securities must restore payment of any sums paid under the preferred
securities or the guarantee.

Governing Law

   Each guarantee agreement will be governed by and construed in accordance
with the laws of the State of New York.

                 RELATIONSHIP AMONG THE PREFERRED SECURITIES,
               THE CORRESPONDING JUNIOR SUBORDINATED DEBENTURES
                              AND THE GUARANTEES

Full and Unconditional Guarantee

   We irrevocably guarantee payments of distributions and other amounts due on
the preferred securities (to the extent the applicable WEC Trust has funds
available for the payment of the distributions) as and to the extent set forth
under "DESCRIPTION OF GUARANTEES." Taken together, our obligations under each
series of corresponding junior subordinated debentures, the related securities
resolution, the indenture, the related trust agreement and the related
guarantee agreement provide, in the aggregate, a full, irrevocable and
unconditional guarantee of payments of distributions and other amounts due on
the related series of preferred

                                      28


securities. No single document standing alone or operating in conjunction with
fewer than all of the other documents constitutes the full guarantee. It is
only the combined operation of these documents that has the effect of providing
a full, irrevocable and unconditional guarantee of the WEC Trust's obligations
under the preferred securities.

   If and to the extent that we do not make payments on any series of
corresponding junior subordinated debentures, the WEC Trust will not pay
distributions or other amounts due on its preferred securities. The guarantees
do not cover payment of distributions when the related WEC Trust does not have
sufficient funds to pay the distributions. In that event, the remedy for a
holder of a series of preferred securities is to institute a legal proceeding
directly against us for enforcement of payment of the distributions to such
holder. Our obligations under each guarantee are subordinate and junior in
right of payment to all of our senior indebtedness and subordinated
indebtedness.

Sufficiency of Payments

   As long as all payments are made when due on each series of corresponding
junior subordinated debentures, those payments will be sufficient to cover
distributions and other payments due on the related preferred securities. This
is primarily because:

  .  the aggregate principal amount of each series of corresponding junior
     subordinated debentures will be equal to the sum of the aggregate stated
     liquidation amount of the related preferred securities and related
     common securities;

  .  the interest rate and interest and other payment dates on each series of
     corresponding junior subordinated debentures will match the distribution
     rate and distribution and other payment dates for the related preferred
     securities;

  .  we, as borrower, have promised to pay any and all costs, expenses and
     liabilities of each WEC Trust except the WEC Trust's obligations under
     its preferred securities; and

  .  each trust agreement provides that the WEC Trust will not engage in any
     activity that is not consistent with the limited purposes of the WEC
     Trust.

   We have the right to set-off any payment we are otherwise required to make
under the indenture if and to the extent we have already made, or are
concurrently making, a payment under the related guarantee agreement.

Enforcement Rights of Holders of Preferred Securities

   A holder of any preferred security may institute a legal proceeding directly
against us to enforce its rights under the related guarantee agreement without
first instituting a legal proceeding against the guarantee trustee, the related
WEC Trust or anyone else.

   Our default or event of default under any other senior or subordinated
indebtedness would not necessarily constitute a trust event of default.
However, in the event of payment defaults under, or acceleration of, our senior
or subordinated indebtedness, the subordination provisions of the applicable
securities resolution will provide that no payments may be made in respect of
the corresponding junior subordinated debentures until the senior or
subordinated indebtedness has been paid in full or any payment default
thereunder has been cured or waived. Our failure to make required payments on
any series of corresponding junior subordinated debentures would constitute a
trust event of default.

Limited Purpose of WEC Trusts

   Each WEC Trust's preferred securities evidence undivided beneficial
ownership interests in the assets of that WEC Trust, and each WEC Trust exists
for the sole purposes of issuing its preferred securities and

                                       29


common securities, investing the proceeds in corresponding junior subordinated
debentures and engaging in only those other activities necessary, convenient or
incidental to those purposes. A principal difference between the rights of a
holder of a preferred security and a holder of a corresponding junior
subordinated debenture is that a holder of a junior subordinated debenture is
entitled to receive from us the principal amount of and interest accrued on
corresponding junior subordinated debentures held, while a holder of preferred
securities is entitled to receive distributions from the WEC Trust (or from us
under the applicable guarantee agreement) if and to the extent the WEC Trust
has funds available for the payment of the distributions.

Rights Upon Dissolution

   Upon any voluntary or involuntary dissolution of any WEC Trust involving the
liquidation of the corresponding junior subordinated debentures, the holders of
the related preferred securities will be entitled to receive the liquidation
distribution in cash, out of assets of the WEC Trust (and after satisfaction of
creditors of the WEC Trust as provided by applicable law). See "DESCRIPTION OF
PREFERRED SECURITIES--Liquidation Distribution upon Dissolution." If we become
subject to any voluntary or involuntary liquidation or bankruptcy, the property
trustee, as holder of the corresponding junior subordinated debentures, would
be one of our junior subordinated creditors. The property trustee would be
subordinated in right of payment to all of our senior indebtedness and
subordinated indebtedness, but it would be entitled to receive payment in full
of principal and interest before our stockholders receive payments or
distributions. We are the guarantor under each guarantee agreement and pursuant
to the indenture, as borrower, have agreed to pay all costs, expenses and
liabilities of each WEC Trust (other than the WEC Trust's obligations to the
holders of its preferred securities). Accordingly, in the event of our
liquidation or bankruptcy the positions of a holder of preferred securities and
of a holder of corresponding junior subordinated debentures are expected to be
substantially the same relative to our other creditors and to our stockholders.

                              BOOK-ENTRY ISSUANCE

   The debt securities, preferred securities and corresponding junior
subordinated debentures of a series may be issued in whole or in part in the
form of one or more global securities that will be deposited with, or on behalf
of, the depositary identified in the prospectus supplement relating to that
series. The depositary will be DTC unless otherwise indicated in the applicable
prospectus supplement for a series. Book-entry securities may be issued only in
fully registered form and in either temporary or permanent form. Unless and
until it is exchanged for the individual securities that it represents, a book-
entry security may not be transferred except as a whole to a nominee of the
depositary or to a successor depositary or any nominee of the successor.

   DTC has advised us as follows: DTC is a limited-purpose trust company
organized under the laws of the State of New York, a member of the Federal
Reserve System, a "clearing corporation" within the meaning of the New York
Uniform Commercial Code, and "a clearing agency" registered pursuant to the
provisions of Section 17A of the Exchange Act. DTC was created to hold
securities of institutions that have accounts with DTC ("participants") and to
facilitate the clearance and settlement of securities transactions among its
participants in such securities through electronic book-entry changes in
accounts of the participants, thereby eliminating the need for physical
movement of securities certificates. DTC's participants include securities
brokers and dealers (which may include the initial purchasers), banks, trust
companies, clearing corporations and certain other organizations. Access to
DTC's book-entry system is also available to others such as banks, brokers,
dealers and trust companies (collectively, the "indirect participants") that
clear through or maintain a custodial relationship with a participant, whether
directly or indirectly. The rules applicable to DTC and its participants are on
file with the SEC.

   We expect that pursuant to procedures established by DTC, upon the deposit
of one or more global securities with DTC, DTC will credit, on its book-entry
registration and transfer system, the ownership interest represented by such
global security to the accounts of participants. The accounts to be credited
shall be designated by the initial purchaser. Ownership of beneficial interests
in the global securities will be limited to

                                       30


participants or persons that may hold interests through participants. Ownership
of beneficial interests in the global securities will be shown on, and the
transfer of those ownership interests will be effected only through, records
maintained by DTC (with respect to participants' interests), the participants
and the indirect participants (with respect to the owners of beneficial
interests in the global securities other than participants). The laws of some
jurisdictions may require that certain purchasers of securities take physical
delivery of such securities in definitive form. Such limits and laws may impair
the ability to transfer or pledge beneficial interests in the global
securities.

   So long as DTC, or its nominee, is the registered owner or holder of a
global security, DTC or such nominee, as the case may be, will be considered
the sole legal owner and holder of any related debt securities, preferred
securities and corresponding junior subordinated debentures of a series
represented by the global security for all purposes under the indenture and the
securities. In addition, as a beneficial owner of an interest in a global
security, you will not be able to transfer that interest except in accordance
with the applicable procedures of DTC. Except as set forth below, as an owner
of a beneficial interest in a global security, you will not be entitled to have
the underlying debt securities, preferred securities or corresponding junior
subordinated debentures that are represented by the global security registered
in your name, will not receive or be entitled to receive physical delivery of
certificated debt securities, preferred securities or corresponding junior
subordinated debentures and will not be considered to be the owner or holder of
any debt securities, preferred securities or corresponding junior subordinated
debentures under the global security. We understand that under existing
industry practice, in the event an owner of a beneficial interest in a global
security desires to take any action that DTC, as the holder of the global
security, is entitled to take, DTC would authorize the participants to take the
action, and the participants would authorize beneficial owners owning through
the participants to take the action or would otherwise act upon the
instructions of beneficial owners owning through them.

   Transfers between participants in DTC will be effected in the ordinary way
in accordance with DTC rules and will be settled in same-day funds.

   DTC has advised us that it will take any action permitted to be taken by a
holder of interests in a global security only at the direction of one or more
participants to whose account the DTC interests in the global security is
credited and only in respect of such portion of the aggregate ownership
interest in the global security as to which the participant or participants has
or have given the direction.

   We and the WEC Trusts expect that conveyance of notices and other
communications by DTC to direct participants, by direct participants to
indirect participants, and by direct participants and indirect participants to
Beneficial Owners and the voting rights of direct participants, indirect
participants and Beneficial Owners will be governed by arrangements among them,
subject to any statutory or regulatory requirements as may be in effect from
time to time.

   Redemption notices will be sent to DTC's partnership nominee, Cede & Co., as
the registered holder of the book-entry securities.

   As long as the book-entry securities are held by DTC or its nominee and DTC
continues to make its same-day funds settlement system available to us, all
payments on the book-entry securities (other than distribution payments on the
preferred securities or corresponding junior subordinated debentures) will be
made by us in immediately available funds to DTC. Distribution payments on the
preferred securities or the corresponding junior subordinated debentures will
be made by the relevant trustee to DTC. We and the WEC Trusts have been advised
that DTC's practice is to credit direct participants' accounts on the relevant
payment date in accordance with their respective holdings shown on DTC's
records unless DTC has reason to believe that it will not receive payments on
such payment date. Payments by participants to Beneficial Owners will be
governed by standing instructions and customary practices and will be the
responsibility of such participant and not of DTC, the relevant trustee, the
WEC Trust (as applicable) or us, subject to any statutory or regulatory
requirements as may be in effect from time to time. Payment on book-entry
securities to DTC is our responsibility or the responsibility of the relevant
trustee (as applicable), disbursement of such payments to direct participants
is the responsibility of DTC and disbursements of such payments to the
Beneficial Owners is the responsibility of direct and indirect participants.


                                       31


   Unless otherwise specified in the applicable prospectus supplement, if a
depositary for a series of preferred securities is at any time unwilling,
unable or ineligible to continue as depositary and we do not appoint a
successor depositary within 90 days, we will issue individual preferred
securities of such series in exchange for the global security representing that
series of preferred securities. In addition, we may at any time and in our sole
discretion, subject to any limitations described in the prospectus supplement
relating to the preferred securities, determine not to have any preferred
securities of a series represented by one or more global securities and, in
that event, will issue individual preferred securities of that series in
exchange for the global security or securities representing that series of
preferred securities. Further, if we so specify with respect to preferred
securities of a series, an owner of a beneficial interest in a global security
representing preferred securities of that series may, on terms acceptable to
us, the property trustee and the depositary for such global security, receive
individual preferred securities of that series in exchange for that owner's
beneficial interests, subject to any limitations described in the prospectus
supplement relating to those preferred securities. In that instance, a
Beneficial Owner in the global security will be entitled to physical delivery
of individual preferred securities of the series represented by the global
security equal in liquidation amount to such beneficial interest and to have
such preferred securities registered in its name. Individual preferred
securities of the series so issued will be issued in the denominations set
forth in the related prospectus supplement.

   DTC may discontinue providing its services as securities depositary with
respect to debt securities at any time by giving reasonable notice to us or the
indenture trustee. Under those circumstances, if we do not appoint a successor
depositary within 90 days, we will issue individual definitive debt securities
in exchange for all the global securities representing the debt securities. In
addition, we may at any time and in our sole discretion determine not to have
the debt securities represented by global securities and, in that event, will
issue individual definitive debt securities in exchange for all the global
securities representing the debt securities. Individual definitive debt
securities so issued will be issued in denominations of $1,000 and any larger
amount that is an integral multiple of $1,000 and registered in such names as
DTC shall direct.

   If the WEC Trust issues certificated preferred securities, they will be
registered in the name of the security holder. The preferred securities may be
transferred or exchanged, based on administrative procedures in the trust
agreement, without the payment of any service charge (other than any tax or
other governmental charge) by contacting the registrar and transfer agent, Bank
One Trust Company, National Association, 1 Bank One Plaza, Suite IL1-0126,
Chicago, Illinois 60670-0126.

   Distribution payments will be made by check if the WEC Trust issues
certificated preferred securities. Payment of the redemption price or
liquidation amount will be made in immediately available funds when you
surrender the preferred security.

   The information in this section concerning DTC and DTC's book-entry system
has been obtained from sources that we and the WEC Trusts believe to be
accurate, but we and the WEC Trusts assume no responsibility for the accuracy
thereof. Neither we nor the WEC Trusts have any responsibility for the
performance by DTC or its participants of their respective obligations as
described herein or under the rules and procedures governing their respective
operations.

                              PLAN OF DISTRIBUTION

   We and/or any WEC Trust may sell the securities in any one or more of the
following ways from time to time: (a) to or through underwriters or dealers;
(b) directly to one or more purchasers; or (c) through agents. The prospectus
supplement will set forth with respect to the securities being offered thereby
the terms of the offering of those securities, including the name or names of
any underwriters, the purchase price of those securities and the proceeds to us
and/or a WEC Trust from such sale, any underwriting discounts and other items
constituting underwriters' compensation, any initial public offering price, any
discounts or concessions allowed or reallowed or paid to dealers, and any
securities exchange on which those securities may be listed. Only underwriters
so named in the applicable prospectus supplement are deemed to be underwriters
in connection with the securities offered thereby.


                                       32


   If underwriters are used in the sale, the securities will be acquired by the
underwriters for their own account and may be resold from time to time in one
or more transactions, including negotiated transactions, at a fixed public
offering price or at varying prices determined at the time of sale. The
obligations of the underwriters to purchase those securities will be subject to
certain conditions precedent, and the underwriters will be obligated to
purchase all the securities of the series offered by us and/or the applicable
WEC Trust and described in the applicable prospectus supplement if any of those
securities are purchased. Any initial public offering price and any discounts
or concessions allowed or reallowed or paid to dealers may be changed from time
to time.

   Securities may also be offered and sold, if so indicated in the prospectus
supplement, in connection with a remarketing upon their purchase, in accordance
with a redemption or repayment pursuant to their terms, by one or more firms
("remarketing firms") acting as principals for their own accounts or as agents
for us and/or an applicable WEC Trust. Any remarketing firm will be identified
and the terms of its agreement, if any, with us and its compensation will be
described in the prospectus supplement. Remarketing firms may be deemed to be
underwriters in connection with the securities remarketed thereby.

   Securities may also be sold directly by us and/or a WEC Trust or through
agents designated by us from time to time. Any agent involved in the offering
and sale of the securities in respect of which this prospectus is delivered
will be named, and any commissions payable by us and/or a WEC Trust to such
agent will be set forth, in the prospectus supplement. Unless otherwise
indicated in the prospectus supplement, any such agent will be acting on a best
efforts basis for the period of its appointment.

   If so indicated in the prospectus supplement, we and/or a WEC Trust will
authorize agents, underwriters or dealers to solicit offers by certain
institutional investors to purchase securities providing for payment and
delivery on a future date specified in the prospectus supplement. There may be
limitations on the minimum amount which may be purchased by any such
institutional investor or on the portion of the aggregate principal amount of
the particular securities which may be sold pursuant to such arrangements.
Institutional investors to which such offers may be made, when authorized,
include commercial and savings banks, insurance companies, pension funds,
investment companies, educational and charitable institutions and such other
institutions as may be approved by us and/or a WEC Trust. The obligations of
any such purchasers pursuant to such delayed delivery and payment arrangements
will not be subject to any conditions except (a) the purchase by an institution
of the particular securities shall not at the time of delivery be prohibited
under the laws of any jurisdiction in the United States to which such
institution is subject, and (b) if the particular securities are being sold to
underwriters, we and/or a WEC Trust shall have sold to such underwriters all of
those securities other than the securities covered by such arrangements.
Underwriters will not have any responsibility in respect of the validity of
such arrangements or the performance by us or such institutional investors
thereunder.

   If any underwriter or any selling group member intends to engage in
stabilizing, syndicate short covering transactions, penalty bids or any other
transaction in connection with the offering of securities that may stabilize,
maintain, or otherwise affect the price of those securities, such intention and
a description of such transactions will be described in the prospectus
supplement.

   Agents and underwriters may be entitled under agreements entered into with
us and/or the applicable WEC Trust to indemnification by us against certain
civil liabilities, including liabilities under the Securities Act of 1933, or
to contribution with respect to payments which the agents or underwriters may
be required to make in respect thereof. Agents and underwriters may engage in
transactions with, or perform services for, us and our subsidiaries in the
ordinary course of business.

                                 LEGAL MATTERS

   Unless otherwise indicated in the applicable prospectus supplements, some
legal matters in connection with the securities will be passed upon (a) for us
by Quarles & Brady LLP, Milwaukee, Wisconsin, our legal counsel, (b) for the
WEC Trusts (with respect to the validity of the preferred securities under
Delaware law) by special Delaware counsel to us and the WEC Trusts named in the
prospectus supplement relating to the preferred securities, and (c) for any
underwriters by Cahill Gordon & Reindel, New York, New York.

                                       33


                                    EXPERTS

   The financial statements of Wisconsin Energy Corporation incorporated in
this prospectus by reference to the Annual Report on Form 10-K for the year
ended December 31, 1999 and the financial statements of Wisconsin Energy
Corporation included in the Form 8-K dated March 2, 2001 have been so
incorporated in reliance on the reports of PricewaterhouseCoopers LLP,
independent accountants, given on the authority of said firm as experts in
auditing and accounting.

                      WHERE YOU CAN FIND MORE INFORMATION

   We file annual, quarterly and special reports, proxy statements and other
information with the SEC. Our SEC filings are available to the public over the
Internet at the SEC's web site at http://www.sec.gov. and through our own web
site at http://wisenergy.com. You may also read and copy any document we file
at the SEC's public reference rooms in Washington, D.C., New York, and Chicago,
as well as at the offices of the New York Stock Exchange, 20 Broad Street, New
York, New York, 10005, where our common stock is listed under the symbol"WEC."
You can call the SEC at 1-800-732-0330 for further information about the public
reference rooms.

   The SEC allows us to "incorporate by reference" the information we file with
them, which means we are assumed to have disclosed important information to you
when we refer you to documents that are on file with the SEC. The information
we have incorporated by reference is an important part of this prospectus, and
information that we file later with the SEC will automatically update and
supersede this information. We incorporate by reference the documents listed
below and any future documents we file with the SEC under Sections 13(a),
13(c), 14 or 15(d) of the Securities Exchange Act of 1934 until we sell all of
the securities covered by this prospectus.

  .  Annual Report on Form 10-K for the fiscal year ended December 31, 1999
     and Amendment No. 1 (on Form 10-K/A) filed April 14, 2000, and Amendment
     No. 2 (on Form 10-K/A) filed June 23, 2000.

  .  Quarterly Reports on Form 10-Q for the quarters ended March 31, 2000,
     June 30, 2000 and September 30, 2000.

  .  Current Reports on Form 8-K filed April 28, 2000 (and Amendment No. 1 on
     Form 8-K/A filed on July 10, 2000), September 13, 2000, December 27,
     2000 and March 2, 2001.

   You may request a copy of these documents at no cost by writing to us at the
following address:

     Wisconsin Energy Corporation
     231 West Michigan Street
     P. O. Box 2949
     Milwaukee, Wisconsin 53201
     Attn: Mr. Thomas H. Fehring, Corporate Secretary
     Telephone: (414) 221-2662

   You should rely only on the information provided in or incorporated by
reference (and not later changed) in this prospectus or any prospectus
supplement. We have not authorized anyone else to provide you with additional
or different information. We are not making an offer of any securities in any
state where the offer is not permitted. You should not assume that the
information in this prospectus or any prospectus supplement is accurate as of
any date other than the date on the front of those documents.

                                       34


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                                 $1,000,000,000


                    [LOGO OF WISCONSIN ENERGY CORPORATION]


                   $550,000,000 5.875 % Senior Notes due 2006
                    $450,000,000 6.50% Senior Notes due 2011


                       ---------------------------------
                             PROSPECTUS SUPPLEMENT
                       ---------------------------------

                          Joint Book-Running Managers

Merrill Lynch & Co.                                         Salomon Smith Barney

                               -----------------

Banc of America Securities LLC
                           Banc One Capital Markets, Inc.
                                                  Bear, Stearns & Co. Inc.
Credit Suisse First Boston                                              JPMorgan


                               -----------------

William Blair & Company    U.S. Bancorp Piper Jaffray  Loop Capital Markets, LLC

                               -----------------

                                 March 23, 2001

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