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Oncor solar interconnection: what it requires before you energize

TX · checked 2026-07-02 · request an update

How does Oncor detect unpermitted backfeed?

TDU meter data documented

Older meters can register exports as consumption, you pay for what you send documented

What happens if they catch you?

Being verified being verified

Small and DIY interconnection requirements

Deregulated market: buyback depends on your retail provider. Interconnection agreement with Oncor required for parallel operation, zero export included. documented

sources: PUCT DG interconnection rule 25.211 (PDF) · PUCT electric substantive rules

Related: Austin Energy (TX (muni)) · CenterPoint Energy (TX (Houston)) · APS (AZ)

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.