*** NOTE that this thread is a work in progress. I am not an electrician and this information is provided by a layperson to the best of my understanding at the time of writing. Electricity is dangerous, and any information presented here is for learning purposes only and not meant to replace the guidance of a professional electrician***
I've been trying to assess the feasibility of a (predominantly) DIY grid tie system with an interconnect agreement with Oncor. There seems to be minimal info about this in the forum, so I wanted to create a central thread for all things Oncor-related, including fees, interconnection, etc. Please post any info you might have that could be helpful for other Oncor users and I will try to keep this thread updated.
I've been trying to assess the feasibility of a (predominantly) DIY grid tie system with an interconnect agreement with Oncor. There seems to be minimal info about this in the forum, so I wanted to create a central thread for all things Oncor-related, including fees, interconnection, etc. Please post any info you might have that could be helpful for other Oncor users and I will try to keep this thread updated.
- Who/What is Oncor
- Oncor is the electric distribution/transmission utility for a substantial part of Texas. They own the transmission lines and thus charge a distribution. fee that is part of your bill from whomever you select as your residential service provider.
- Oncor requires a permitted installation as part of their application process (termed Interconnection of Distributed Generation). The general overview and a copy of a printable version of the application can be found at https://www.oncor.com/content/dam/oncorwww/documents/smart-energy/energy-system-developers/Oncor Interconnection Application for Certified Systems.pdf.coredownload.pdf
- This means you will need to apply for a permit for your installation (building, electrical), and demonstrate that after permit approval that your system has passed inspection.
- Once you have passed inspection, you can apply for an interconnection agreement. If you are a homeowner, you will need to email dg@oncor.com to request access to their online application system (eTRACK).
- After approval of an interconnection agreement Oncor will issue a "permission to operate." They will then perform any equipment/programming issues on their side and your system can then be energized
