All 53 utilities / CenterPoint Energy
CenterPoint Energy solar interconnection: what it requires before you energize
How does CenterPoint Energy detect unpermitted backfeed?
Their own FAQ: turning on before PTO throws an error message on the smart meter and an employee investigates it documented
What happens if they catch you?
Same FAQ: early operation puts your account in violation status and delays your export data reaching your REP documented
Small and DIY interconnection requirements
Application via their eTRACK+ portal with one-line, site layout, and approved equipment models. Interconnection agreement signed, then PTO, then the meter is reprogrammed, then you may operate. documented
Self-installs are explicitly recognized: contractor jobs get photo-based visual inspection, DIY jobs get a scheduled onsite one. documented
Like Oncor: CenterPoint buys nothing, your REP handles buyback, and the smart meter reports excess in 15-minute intervals you can check yourself on smartmetertexas.com. documented
Lockable AC disconnect with external handle within 10 feet of the meter. documented
sources: CenterPoint DG application FAQ · PUCT rule 25.211 (PDF)
Related: Oncor (TX) · Austin Energy (TX (muni)) · PSEG Long Island (NY (LIPA))
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.