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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

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

                                 SCHEDULE 14D-9



                   SOLICITATION/RECOMMENDATION STATEMENT UNDER
             SECTION 14(D)(4) OF THE SECURITIES EXCHANGE ACT OF 1934

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                                  ENDESA, S.A.
                            (Name of Subject Company)


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

                                  ENDESA, S.A.
                      (Name of Person(s) Filing Statement)

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                 Ordinary shares, nominal value (euro)1.20 each

       American Depositary Shares, each representing the right to receive
                               one ordinary share
                         (Title of Class of Securities)

                                   00029274F1
                      (CUSIP Number of Class of Securities)

                              Alvaro Perez de Lema
                    Authorized Representative of Endesa, S.A.
                           410 Park Avenue, Suite 410
                               New York, NY 10022
                                 (212) 750-7200

   (Name, Address and Telephone Number of Person Authorized to Receive Notices
         and Communications on Behalf of the Person(s) Filing Statement)

                                 With a Copy to:
               Sergio J. Galvis, Richard A. Pollack, Angel L. Saad
                             Sullivan & Cromwell LLP
                                125 Broad Street
                            New York, New York 10004
                                1 (212) 558-4000

  |X| Check the box if the filing relates solely to preliminary communications
                made before the commencement of a tender offer.


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                           IMPORTANT LEGAL INFORMATION


     The following  document was made available to shareholdersof  Endesa,  S.A.
(the "Company" or "Endesa") on October 6th, 2005. Endesa  shareholders are urged
to read Endesa's Solicitation/Recommendation Statement on Schedule 14D-9 when it
is filed by the Company with the U.S.  Securities and Exchange  Commission  (the
"SEC"),     as    it     will     contain     important     information.     The
Solicitation/Recommendation Statement and other public filings made from time to
time by the Company  with the SEC are  available  without  charge from the SEC's
website at  www.sec.gov  and at the  Company's  principal  executive  offices in
Madrid, Spain.

Statements in this document  other than factual or  historical  information  are
"forward-looking  statements"  within the meaning of the U.S. Private Securities
Litigation Reform Act of 1995.  Forward-looking  statements  regarding  Endesa's
anticipated financial and operating results and statistics are not guarantees of
future performance and are subject to material risks, uncertainties, changes and
other  factors  which may be beyond  Endesa's  control  or may be  difficult  to
predict.

Forward-looking  statements  could include,  but are not limited to,  statements
regarding:  (1) estimated future earnings; (2) anticipated increases in wind and
CCGTs generation and market share; (3) expected  increases in demand for gas and
gas sourcing;  (4) management  strategy and goals; (5) estimated cost reductions
and  increased  efficiency;  (6)  anticipated  developments  affecting  tariffs,
pricing  structures and other  regulatory  matters;  (7)  anticipated  growth in
Italy,  France and elsewhere in Europe;  (8) estimated capital  expenditures and
other  investments;  (9) expected asset disposals;  (10) estimated  increases in
capacity and output and changes in capacity  mix;  (11)  repowering of capacity;
and (12) macroeconomic conditions.  For all of these-forward looking statements,
Endesa claims the protection of the safe harbor for  forward-looking  statements
contained in the U.S. Private  Securities  Litigation Reform Act of 1995. Endesa
disclaims any obligation to revise or update any  forward-looking  statements in
this document.

The following  important  factors,  in addition to those discussed  elsewhere in
this document, could cause actual financial and operating results and statistics
to differ materially from those expressed in our forward-looking statements:

     o    Economic  and  Industry  Conditions:  materially  adverse  changes  in
          economic or  industry  conditions  generally  or in our  markets;  the
          effect  of  existing   regulations  and  regulatory  changes;   tariff
          reductions;  the impact of any  fluctuations  in interest  rates;  the
          impact of  fluctuations  in exchange  rates;  natural  disasters;  the
          impact of more stringent  environmental  regulations  and the inherent
          environmental  risks  relating  to our  business  operations;  and the
          potential liabilities relating to our nuclear facilities.

     o    Transaction or Commercial Factors:  any delays in or failure to obtain
          necessary  regulatory,  antitrust and other approvals for our proposed
          acquisitions  or  asset  disposals,   or  any  conditions  imposed  in
          connection  with such  approvals;  our ability to  integrate  acquired
          businesses   successfully;   the  challenges   inherent  in  diverting
          management's  focus and resources from other  strategic  opportunities
          and  from  operational  matters  during  the  process  of  integrating
          acquired businesses; the outcome of any negotiations with partners and
          governments;  any delays in or failure to obtain necessary  regulatory
          approvals  (including  environmental)  to construct new  facilities or
          repower or enhance our  existing  facilities;  shortages or changes in
          the price of  equipment,  materials or labor;  opposition of political
          and ethnic  groups;  adverse  changes in the political and  regulatory
          environment  in the  countries  where  we and  our  related  companies
          operate; adverse weather conditions, which may delay the completion of
          power plants or substations, or natural disasters,  accidents or other
          unforeseen events; and the inability to obtain financing at rates that
          are satisfactory to us.

     o    Political/Governmental  Factors: political conditions in Latin America
          and changes in Spanish,  European and foreign  laws,  regulations  and
          taxes.




     o    Operating  Factors:  technical  difficulties;   changes  in  operating
          conditions and costs;  the ability to implement cost reduction  plans;
          the ability to maintain a stable supply of coal,  fuel and gas and the
          impact  of  fluctuations  on fuel  and  gas  prices;  acquisitions  or
          restructurings;  and the ability to  implement  an  international  and
          diversification strategy successfully.

     o    Competitive   Factors:   the  actions  of   competitors;   changes  in
          competition and pricing environments;  the entry of new competitors in
          our markets.




                                 Formal Notice


     NEW YORK--(BUSINESS WIRE)--Oct. 6, 2005--

New York, October 5, 2005.- This is the translation of a document filed today by
Endesa (NYSE: ELE) with the Spanish Securities Exchange Commission (CNMV):

                    RELEVANT FACT: ADDITIONAL INFORMATION TO

   ENDESA'S DOCUMENT "ENDESA: STRONGER BUSINESS, GREATER VALUE", REPORTED ON
                                OCTOBER 3rd 2005

REGULATORY ISSUES (1 OF 2):

On 25 February 2005 the Spanish  Cabinet  adopted a series of measures  aimed at
boosting  productivity.  Deriving from this plan, the Royal Decree Law 5/2005 of
11 March on emergency  productivity reforms introduced certain  modifications to
the regulation of the energy sector.  Among these were a change to the mechanism
for paying Competition  Transition Costs (stranded costs also known as CTC) from
monthly to annual settlement.  Collection of CTCs was therefore  suspended until
the final preliminary settlement of each year is made except for 2004, for which
it was expressly  stated that the annual  settlement would not take place before
January 1, 2006. The monthly settlement, however, remained in place in the event
negative  CTCs;  i.e.  the  tariff  showed a  deficit.  In this  case,  specific
percentages  were  established  and applied to each  company to fund the deficit
which differed from those stipulated in prior legislation.

Under this framework, the estimated deficit for 2005 based on the performance of
the generation pool would be Euro 3.5 billion.

At the same time the Cabinet approved a series of Mandates to encourage  certain
reforms  and  initiatives  including  specific   energy-related   actions  (e.g.
application of  information  from  electricity  distribution  companies,  tariff
structure, standardisation of reactive energy, etc.).

There is also the  commitment  of the  regulators  and the Ministry of Industry,
Tourism and Commerce  itself to complete the  development of certain  regulatory
issues  concerning  regulated  activities,  which at present are still  pending:
remuneration  of the  island  and  nonmainland  electricity  systems  and of the
remuneration mechanism for distribution.

Based on the above, pursuant to the commitments made by all the utilities in the
protocol signed in 1996 and considering  the  recommendations  made in the White
Paper on the reform of the electricity  production  market,  Endesa  understands
that the mechanism  devised to balance wholesale market prices with costs should
be based on virtual  contracts  with a fixed price of Euros 36/MWh for hydro and
nuclear technologies.

The proposal of virtual contracts for hydro and nuclear generation would:

- --  reduce the current market power,

- --  eliminate the deficit arising from inefficiencies in the wholesale market,
    and

- --  free up funds that could be used to increase the remuneration of regulated
    activities.



REGULATORY ISSUES (2 OF 2):

Regulation: Current Situation

a. The  removal of CTCs could  produce an extra cost for  consumers  of Euro 7-9
billion  from 2005 to 2010.  Tariffs  would have to be raised by 7-8% p.a.  from
2006 to 2010

b. Regulated activities:

- --  Distribution: remuneration deficit compared with similar EU members.

- --  Commitment of the regulator to increase remuneration.

- --  Island generation: ministerial decree draft; orders already published are
    being reviewed by the energy regulator, the CNE

5 Objectives

- --  A truly competitive market. Market power need to be reduced.

- --  Respect the "Regulatory Pact" between consumers and generators. The market
    was deregulated in an attempt to achieve stable prices for both: Euro
    36.06/MWh+CTC. Proposed solution: "virtual contracts" for hydro and nuclear
    generation at Euro 36.06/MWh.

- --  Substitution of the current CTC mechanism. The settlement mechanism distorts
    the market and produces imbalances among generators. Estimates for market
    prices in coming years ensure the recovery of investments in assets subject
    to recoup CTCs.

- --  Partial recognition of the 2005 tariff deficit. Around Euro 1.5 billion of
    the potential Euro 3.5 billion deficit correspond to windfall profits
    (hydro+nuclear), the costs of which have not risen.

- --  Appropriate remuneration of regulated activities.

EFFICIENCY IMPROVEMENT PLAN (1 of 3)

In March Endesa embarked on an efficiency improvement plan aimed at boosting the
operating results of its electricity business in Spain and Portugal.

The programme was based on a bottom-up perspective, seeking not only to increase
absolute  earnings,  but to  address  one of  Endesa's  core  values;  i.e.  its
results-oriented management:

"Our  activities are aimed at achieving the  objectives of the business  project
and profitability for our shareholders, endeavouring to exceed expectations".

Since the programme was launched  more than 200  initiatives  were proposed from
the  different  areas and levels within the  organisation.  The  clustering  and
selection process finished in June.

In sum, the  programme  conforms to 60  initiatives  which affect the  different
business lines and focuses on improving margins and reducing costs.

Each of these initiatives is set out according to:

- --  Person in charge

- --  Implementation calendar

- --  Areas involved

- --  Improvement results target

This  programme is  continually  monitored,  with monthly  meetings  held by the
management  board,  where  the  progress  of the most  relevant  initiatives  is
reviewed along with a quarterly report on the overall initiatives.

The global improvement objective has been set at Euro 320 million for 2009, with
the following intermediate stages:

- --  2005 Euro 100 million

- --  2006 Euro 200 million

- --  2007 Euro 300 million



EFFICIENCY IMPROVEMENT PLAN (2 of 3)

In  March an  efficiency  plan was put in  place  with a  target  of  increasing
Operating Profit by Euro 320 million by 2009

Technical  objectives:   Identify  and  implement   initiatives;   i.e.  process
reengineering,  which by considering  current framework can lead to sharp growth
in margins

Cultural objectives: Identify bottom-up initiatives

Guiding principles to ensure success:

- --  Set targets with strict and fair rules for all units

- --  Systematic bottom-up search for improvement opportunities, with the Area
    Managers in charge of overseeing that the steps drawn up are implemented.

- --  Visibility and transparency of the programme (launch meetings, approval of
    ideas reunions, &).

- --  Strict monitoring of implementation.

EFFICIENCY IMPROVEMENT PLAN (3 of 3)

MARGIN IMPROVEMENT: Euro 165 million

- --  Generation and Energy Management: Euro 90 million

    --  Optimisation of fuels mix in fossil fuel power plants

    --  Diversification of fuel suppliers

    --  Improvements in yield at fossil fuel and hydro power plants

    --  Optimisation of energy supply

- --  Distribution: Euro 30 million

    --  Power capacity adequacy campaign

    --  Reduction of fraud and network losses

    --  Increase in related revenues

- --  Supply: Euro 45 million

    --  Value Added Services expansion plan

    --  Gas and electricity pricing policies

COST IMPROVEMENT: Euro 155 million

- --  Generation: Euro 65 million

    --  Lean methodology for fossil fuel power plants

    --  Operational improvements in hydro power plants

- --  Distribution: Euro 80 million

    --  Whole resource optimisation plan: (i) review of business structure, and
        (ii) plan for substituting subcontracted activities





    --  Optimising reviews and repairs cost

    --  Review of commercial system costs

    --  Contracts

    --  Reduction in general expenses

- --  Supply: Euro 10 million

    --  Costs of commercial activities

    --  Redesign and scope of advertising campaigns

        For additional information please contact Alvaro Perez de Lema,
              North America Investor Relations Office, telephone #
                                  212 750 7200
                              http://www.endesa.es