Operations Documentation
The information provided below will assist you in connecting to the transmission system.
Massachusetts, New England areas:
- 2026 MA YOP Environmental Monitor Notice (pdf)
- 2026 MA National Grid ROW YOP (pdf)
- 2026 MA ROW YOP Maps (pdf)
- 2025 MA National Grid ROW YOP (pdf)
- 2025 MA National Grid ROW YOP Maps (pdf)
- 2024-2028 MA National Grid 5 Year VMP (pdf)
- Information and Requirements for Electrical Service (pdf)
- ISO New England Inc. Transmission, Markets and Services Tariff
- ISO-New England interconnections documents
- ISO-NE Operating Procedures (for Procedures #17 and #18)
New York State:
- National Grid in New York Electric Specifications
- NYISO Transmission Expansion and Interconnection Manual (pdf)
- NYISO System Reliability Impact Study Criteria and Procedures
- NYISO Market Administration and Control Area Services Tariff