Gridrules

All 60 utilities / Oncor

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

Verify your export before Oncor does

Oncor 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

Contains links to our partner sites. As an Amazon Associate we earn from qualifying purchases.

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 60 utilities: see all of Gridrules.