NYISO - NOTICE of Changes to OASIS/MIS/CSS Systems

Dear Market Participants,

The NYISO is pleased to inform you about the following
enhancements to the public web server (www.nyiso.com) and
MIS that will be implemented on April 24, 2001.

* The Web Site Refresh project will deliver the enhanced NYISO
Internet web site (www.nyiso.com) design. The site

?s content and
style will be enhanced to improve navigation and ease of use. A
new version of the Moving Range Chart web application will be
deployed.

* A new internal application for Operations to manage units
placed out of merit will improve coordination between Operations
and Grid Accounting for the purposes of accurate billing.

* The Hybrid solution for fixed block pricing of energy in the
real-time market will be deployed (pending regulatory approval).

Change no's: KKIR-4VQSTF; RMUY-4VPRUZ; FTHE-4VW5EH; MSIR-4VFN6M

If you notice any NYISO systems behave other than intended after
the scheduled implementation date, please let us know immediately.

It will be helpful if you refer to this notice if you communicate
with us about these changes/

Thank you,
Customer Relations
phone: 518-356-6060