Utilities
Going Solar with Oncor
What Oncor customers need to know about solar interconnection, buyback credit, and system sizing in Dallas–Fort Worth, North and West Texas.
Oncor is a transmission and distribution utility serving Dallas–Fort Worth, North and West Texas. Oncor delivers power but does not set buyback. Your retail electric provider does.
How Oncor handles rooftop solar
Oncor delivers power but does not set buyback. Your retail electric provider does.
Interconnection is the step that determines when your system can legally export power. Your installer files the application, the utility reviews the one-line diagram and equipment certifications, and after a passed local inspection you receive permission to operate.
- Largest delivery footprint in Texas
- Handles interconnection applications and meter swaps
- Solar buyback plans come from your REP, not Oncor
Sizing a system in this territory
Because export credit varies, size the array to your actual annual kWh usage rather than to available roof space. Covering 80% to 100% of usage is the common target when buyback is weaker than the retail rate.
Use the Texas Solar Calculator with your city selected to see how the local rate and sun hours change the payback period.
What to ask before you sign
Any installer working in this territory should be able to answer these in writing.
- How many interconnections have you completed here in the past year?
- What is the expected timeline from contract to permission to operate?
- What export credit am I actually receiving, in cents per kWh?
- Who files the interconnection application and pays the fee?