All 53 utilities / Con Edison
Con Edison solar interconnection: what it requires before you energize
How does Con Edison detect unpermitted backfeed?
Network protectors on the NYC secondary grid physically trip on reverse flow, your export is detected by the hardware itself documented
What happens if they catch you?
Operating without PTO violates the tariff and can mean required disconnection documented
Small and DIY interconnection requirements
Statewide SIR via PowerClerk, no fee under 50 kW, and small systems get an expedited self-certification track: simple application review, build, inverter test, self-cert form, then final acceptance and the meter order. documented
The NYC catch: much of Manhattan and parts of Brooklyn and Queens sit on the secondary network, where systems are frequently approved zero-export only or denied outright regardless of size. Check which grid type serves your building before designing anything. documented
DOB electrical permit and Con Ed approval are separate parallel tracks, neither satisfies the other. documented
Phase One NEM: retail-rate credits, annual leftover paid at avoided cost, plus the monthly CBC charge for post-2022 interconnects. documented
sources: Con Edison applying for interconnection · NY standardized interconnection requirements (PDF)
Related: National Grid (NY (upstate)) · PSEG Long Island (NY (LIPA)) · Consumers Energy (MI)
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 53 utilities: see all of Gridrules.