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                               KeySpan Corporation
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Communication #1

Attached is a script of the testimony that Robert B. Catell,  Chairman and Chief
Executive  Officer  of  KeySpan  Corporation  ("KeySpan")  prepared  for a joint
Suffolk County Legislature Energy and Consumer  Protection  Committee hearing on
Monday,  March 27, 2006 which  addressed the  acquisition of KeySpan by National
Grid:



                          Testimony of Robert B. Catell
                                Chairman and CEO
                               KeySpan Corporation

                                     Before

       The Joint Suffolk County Legislature Energy and Consumer Protection
                                   Committees

                                       On

            "National Grid and KeySpan: What It Means for Customers;
                         What It Means for Long Island"


                             Monday, March 27, 2006







                                       3





Good  morning.  My name is Robert  Catell,  and I am Chairman and CEO of KeySpan
Corporation.  It's my  great  pleasure  to be here  before  the  Suffolk  County
Legislature's  Energy and Consumer Protection  Committees.  And I appreciate the
opportunity  to testify on a very timely  subject,  indeed:  "National  Grid and
KeySpan: What It Means for Customers; What It Means for Long Island."

I want to thank Energy Committee Chairman Wayne Horsley and Consumer  Protection
Chairman  Cameron  Alden  for  inviting  me here,  and I also  want to thank the
members of their respective committees.

I've  stood  before  many  Long  Island  groups  over  the  past  several  years
representing  KeySpan. I've stood, right here in this room, proudly representing
a company that's  profoundly  committed to meeting the energy needs of residents
and businesses on Long Island.

KeySpan  is a company  with a strong  community  presence.  KeySpan is a company
that's partnered with local government,  community and  environmental  groups to
make sure Long Islanders' interests have always been heard and best-served. And,
as you know,  KeySpan has entered into an agreement with National Grid that will
spell a new chapter in both our company and energy on Long Island.

It's a chapter I'm very excited to begin. But to tell you why, I need to go back
a few years,  eight to be exact.  Because  it was in 1998 that a company  called
KeySpan  came to Long Island to turn a local  utility  called  LILCO into what I
think everyone would agree is a stronger, more well-regarded organization.

We created an energy  company that was  financially  sound.  We got out into the
community. We formed those valuable partnerships with local businesses and other
key constituencies  such as yourselves.  And we continued to provide the highest
levels of service with an extremely  dedicated and qualified work force, most of
whom live on Long Island.

There's a similar  story that  played out in a similar  way about six years ago,
when a company  called  National Grid acquired a  financially  troubled  Niagara
Mohawk, or NIMO, in upstate New York. Today, that National  Grid-owned  business
is financially robust,  with a good corporate  reputation and a strong community
commitment.


And soon,  KeySpan will become part of National  Grid's success story.  That is,
we're about to become part of a larger  company that will give us access to more
resources to make even more of a difference in the communities we serve ... from
Long Island to New Hampshire.


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We're a strong company that's going to get stronger; and we're a public utility
that's going to be better able to serve the best interests of the public. That's
what I firmly believe, and that's why I'm so excited about this deal ... for
everyone involved.

Some people claim that  foreign  ownership  isn't a good thing.  But I'd like to
tell you a story of another  European-owned  institution  in the U.S.,  this one
outside of the energy industry - European American Bank.

People  didn't  like the idea of having a  European-owned  business in the U.S.,
much less  across  Long  Island  back in 1974,  when EAB took  over  financially
troubled Franklin National Bank. But that initial fear quickly went away as Long
Islanders  recognized  that EAB was there to serve and benefit them. And, as you
may have  experienced  yourselves,  it lived up to that  promise for more than a
quarter-century.

National Grid is, of course,  London-based.  But did you know that 55 percent of
its  operations  are  right  here in the  U.S.?  And  that  KeySpan,  its  fifth
acquisition, is, by far its largest?

National Grid is another great example of a company with that strong  commitment
to  community,  both in the U.S.  and  abroad.  It's  also  well-recognized  for
approaching  each of its  acquisitions  as  mergers  ...  partnerships  ...  the
blending  of  best  practices.  That's  good  for  KeySpan,  it's  good  for our
employees, but it's good for the public too.

The fact is,  they're not looking to take away the things we do best;  they want
to benefit  from them.  They want to adopt and  integrate  our best  practices -
which  you've all seen in action -- to enhance the  performance  of their entire
U.S.  operation.  And  they  want to  continue  to draw  on the  experience  and
expertise of our fabulous work force.

By the same token,  we can  benefit  from  National  Grid's  expertise.  And I'm
convinced that the strength of this newly combined  company will greatly benefit
shareholders, customers and ratepayers alike, in the U.S. and right here on Long
Island.

Together, this newly combined company will also be better able to tackle the two
major energy concerns on Long Island today:  pricing and  reliability.  How does
the National Grid/KeySpan deal play into these key areas?

Let's talk about pricing. In total,  KeySpan and National Grid have gone through
six  mergers  before  now.  And guess what - rates  have never gone up;  they've
stayed steady or even come down.


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On the National Grid side,  that's clearly  attributed to  efficiencies  they've
found in combining best practices of the operations they've acquired.

And National Grid is committed to working with both KeySpan and LIPA to maintain
that excellent track record.

That's the energy  delivery  side of things.  As we all know,  however,  much of
energy pricing has to do with energy supply.

And with this deal,  KeySpan will marry its North American gas supply  expertise
with National Grid's global outlook to become a real player in developing global
energy  solutions ... which are going to be essential to ensure  adequate energy
supply in the future.

O.k.,   concern   number  two  -  reliability.   The  electric   Transmission  &
Distribution, or T&D, system KeySpan manages for LIPA consistently ranks top for
reliability in New York State. That's not going to change. The same skilled Long
Island work force will  continue to maintain  the T&D system for LIPA,  with the
ability to draw on upstate resources in case of a major interruption.

Our power plants are currently 98 percent available,  even on the hottest summer
days.  They're  well-run and maintained by skilled KeySpan  employees,  and that
terrific  power plant  performance  won't  change  either,  except maybe for the
better with the application of new technologies.

What else is so attractive about this deal? It comes at an important time.

With the energy industry in a strong  consolidation  mode,  KeySpan,  like other
companies,  has been  looking  for the best ways to compete in this  challenging
environment. And we believe we've found it ... by partnering with National Grid.

As I've said,  they see in us a well-run  company,  with a highly  talented  and
skilled work force. Something they want to keep.

And, in fact, they are under  contractual  agreement to honor all existing union
contracts.  They see power plants that are great, low-risk assets with long-term
contracts.  They see a thriving gas business that, with the proper injections of
capital  investment,  can grow to its fullest  potential.  They want to tap that
growth ... and so do we.

We see the  opportunity to further a  well-thought  out plan to deliver value to
shareholders and customers. We see growth, synergies,  efficiencies,  and we see
new sources of energy  supply and  infrastructure  coming to Long Island,  where
it's definitely needed. We see a combined new company that can achieve fuel cost
savings  ...  lower its risk  profile  ...  spread its fixed  costs over a wider
geographic  area ...  and have  access  to the  capital  resources  to invest in
exciting new technologies.


                                       6




We also see a company - National Grid -- that's as dedicated to its employees as
we've always been.

And here's a quote from Gary Smith that really speaks to that.  Gary  represents
several thousand workers for the Union GMB in the U.K. and he says, quote: "With
an employer you can have your ups and downs, but by-and-large,  they're a pretty
constructive company to deal with. They're one of the best we deal with in terms
of relationships."  Gary's quote appeared in the March 6 edition of Newsday in a
story entitled, "KeySpan suitor's shiny image."

Mike Jesanis, President and CEO of National Grid's U.S. operations,  told a Long
Island audience at one of our initial press  conferences and I quote:  "... It's
about bringing together two companies with very strong traditions; traditions of
delivering energy safely,  reliably,  efficiently,  and with a commitment to our
employees and our communities,  our investors and all of the people that we have
a privilege to serve ... We look forward to having KeySpan  employees as part of
the larger  National  Grid Group  because  it's a talented  work  force,  it's a
diverse work force, and it will fit right in with the rest of National Grid."

And I'm here to tell you that this  could  happen as early as the  beginning  of
next year, once the transaction receives shareholder and regulatory approval.

In the  meantime,  we are  committed  to  ensuring  as  smooth a  transition  as
possible;  one that will be seamless to our customers and the  community.  I, in
fact,  will be staying on as  Chairman of National  Grid's  U.S.  Division,  and
serving on the Board and as Deputy  Chairman of  London-based  National Grid plc
for at least two years after the deal closes.


During  that time,  I will make it my  personal  commitment  to ensure  that our
company continues to forge solid -- and sustainable - relationships with all the
people we interact and conduct business with.

Before I close, I want to touch on one other subject: LIPA.  Specifically:  What
happens with the LIPA agreement we just signed in December?

As you may know, this very favorable agreement for customers includes a two-year
rate  freeze,   operating   cost   reductions  of  about  $38  million  and  the
establishment of a $75 million fuel fund to mitigate  increased fuel costs. Most
importantly,  it provides incentives for continued  reliability and stability to
LIPA's 1.1 million electric customers through the year 2013.


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KeySpan is committed to this agreement and the benefits it provides, and we will
work hard in the coming months to see this contract  approved to make sure these
benefits  remain intact.  Once approved,  National Grid will be bound by all the
terms of that agreement.

On a related note, KeySpan will continue to advance repowering alternatives with
LIPA. As part of the recent  agreement,  LIPA has the opportunity to acquire the
Far Rockaway and Barrett  Plants,  which are among the least  efficient and most
suitable units for repowering.  There's also ample real estate at these sites to
install  necessary  equipment.  We still  think  this is the best  solution  for
repowering on Long Island at this time.

And we stand ready to build a new combined-cycle  plant at the permitted site on
Spagnoli Road, the perfect  location:  It's in the center of load growth, a mile
from existing gas supply and just a mile from the nearest  substation.  Building
Spagnoli would accomplish a "virtual repowering" as the high-efficient new plant
would mean our older plants would run less. Our Article X permit is in place; we
have an agreement with the Town of Huntington;  engineering is done; the site is
ready to go. All we need is LIPA's agreement to go forward.

In  addition  to  repowering,  we will also  continue  to explore  and invest in
emission reduction technologies at all of our plants.

In closing,  there are a lot of  exciting  things on the horizon for KeySpan and
Long  Island.  And in a  nutshell,  here are the five  things the new,  combined
company can do that neither company could achieve as well on their own:

1.   provide consumers with lower energy delivery costs

2.   advocate more  effectively  on being an investor in new,  secure sources of
     supply and energy infrastructure

3.   have the scale necessary to achieve fuel cost savings

4.   improve  the  quality  of  customer  service  through  advanced,  efficient
     technologies; and

5.   ultimately achieve growth in a complex, competitive environment.

Thank you and I welcome any questions now.


                                       8





Additional Information and Where to Find It
- -------------------------------------------

KeySpan intends to file with the Securities and Exchange  Commission (the "SEC")
a proxy  statement and other relevant  documents in connection with the proposed
acquisition  of KeySpan by National  Grid.  Investors  and  security  holders of
KeySpan are advised to read the proxy  statement  and other  relevant  documents
when they become available, as they will contain important information about the
transaction.  Investors and security holders may obtain a free copy of the proxy
statement  and other  documents  filed by KeySpan with the SEC, when they become
available, at the SEC's web site at http:/www.sec.gov.

KeySpan  and  its  directors,  executive  officers  and  other  members  of  its
management and employees may be deemed to be participants in the solicitation of
proxies from its security  holders in connection with the proposed  acquisition.
Information   concerning  the  interests  of  KeySpan's   participants   in  the
solicitation  is set forth in KeySpan's  most recent proxy  statement and Annual
Report on Form 10-K (filed with the SEC on March 30, 2005 and February 28, 2006,
respectively)  and will be set  forth in the  proxy  statement  relating  to the
acquisition when it becomes available.



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