This is the National Grid Open Access Same-Time Information System (OASIS) site for all National Grid Transmission Providers, including New England Power Company and Niagara Mohawk Power Corporation. FERC Orders and NAESB (North American Energy Standards Board) standards require the posting of the following information on the Company Website or OASIS; this information can also be viewed on National Grid’s webOASIS site:

Standards of Conduct
Performance Metrics
Business Practices, Waivers, and Exemptions
ATC Information
NAESB WEQ Standards
   
Additional information related to transmission interconnections and service is provided under the following categories:
Service and Rates
Filings and Studies
   
Miscellaneous Postings
HVDC Phase I/II OASIS Posting - July 11, 2023 (.pdf)
NEP OASIS Update February 2, 2021 (.pdf)
Notice for Firm Service Reservation Request_November 1 2020 (.pdf)
Notice for Firm Service Reservation Requests_07-01-2020 (.pdf)
Notice Phase I-II Availablity 10-30-2019 (.pdf)
HQUS Notification 2016 - NGrid (.pdf)
OASIS Posting – National Grid Affiliate (SCOPING MEETING PARTICIPATION) (.pdf)
OASIS Posting – National Grid Affiliate (SCOPING MEETING PARTICIPATION) (.pdf)
OASIS Posting – National Grid Affiliate (SCOPING MEETING PARTICIPATION) (.pdf)
OASIS Posting – National Grid Affiliate (SCOPING MEETING PARTICIPATION) (.pdf)
OASIS Notice- Sea2Shore Transmission Outage (.pdf)
Notice of Transmission Service Request; dated 03/02/11 (.pdf)
Notification of Retirement of Monroe HVDC Converter Terminal (.pdf)
Request for Proposal (RFP) for Western New York (.pdf)
National Grid Affiliate ISO-NE Settlement Postings (.pdf)
National Grid's 2019 Local Transmission Plan (.pdf)
National Grid's 2021 NY Local Transmission Plan (.pdf)
National Grid NY Local Transmission Plan November 2021 (.pdf)
National Grid Local Transmission Plan Update Q1_2022 (.pdf)
National Grid NY Local Transmission Plan November 2023 (.pdf)


Contact Information

For more information about the OASIS, or if you have any questions about National Grid transmission services in NY, please email myService.NY@nationalgrid.com and in New England: myService.NE@nationalgrid.com.

National Grid's Deputy General Counsel is Keri Sweet-Zavaglia. She may be contacted via email at Keri.Sweet-Zavaglia@nationalgrid.com or (315)-428-5839.

For Customer Service issues or questions—please visit our Corporate Contact Us form to email Customer Service.

Please visit the National Grid website for links to our Corporate and Distribution websites.