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National Grid solar interconnection: what it requires before you energize
How does National Grid detect unpermitted backfeed?
AMI, statewide SIR framework documented
What happens if they catch you?
Being verified being verified
Small and DIY interconnection requirements
Portal-only applications, acceptance before install, verification testing after. No fee under 50 kW, roughly 4 to 8 weeks to PTO. documented
1:1 net metering with a 20 year lock, plus the monthly CBC charge for post-2022 interconnects. March true-up. documented
Re-verified Aug 2026: the SUNNY Act (plug-in solar, A.9111C/S.8512C) passed the legislature May 28 and still awaits the governor's signature, she has until end of 2026, effective 90 days after signing. Everything else in this row unchanged. documented
sources: NY standardized interconnection requirements · National Grid connect my solar
Verify your export before National Grid does
National Grid nets your exports, but the meter still logs every reverse-flow interval, including ones you didn't plan. Worth knowing your real number before they do.
Clamp meter on the grid input · energy monitor on the export register
Building battery-first or zero-export anyway? Craftstrom · EZ-1 · EG4
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Related: Con Edison (NY (NYC / Westchester)) · PSEG Long Island (NY (LIPA)) · PECO (PA)
Planning a zero-export or plug-in setup here? See the zero-export reality check and equipment notes.
Every claim above is evidence-graded: documented means it traces to the tariff or the utility's own filings, reported means a dated community report. The full table covers 60 utilities: see all of Gridrules.