Rules by state

Solar and battery interconnection rules in Oklahoma

Oklahoma net energy billing. Every threshold below was read out of the document linked at the bottom of this page, and the same rules answer the free screening check.

Who this binds: investor owned utilities, electric cooperatives. A utility outside that list sets its own terms, so confirm who serves the address first.

Check a Oklahoma address free
How the size is measured: not published

The published limits here are stated in kilowatts without saying whether that is the inverter rating in alternating current or the array rating in direct current. On a system near a threshold that decides which band it lands in, so the checker asks the question rather than choosing an answer.

Size bands and what each one obliges

Up to 300 kW Size 0 to 300 kW

Net energy billing is available to a producer with a maximum rated capacity of 300 kW or less that employs equipment compatible with the particular line segment and signs a purchase agreement. Oklahoma publishes no application fee and no study deposit.

  • Purchase agreement with the utility
  • Equipment compatible with the line segment, at the utility discretion
  • No published fee

The screens that decide it

Ask the utility this, before you sell it

  1. What is this customer peak load? A system with an installed capacity greater than 125 percent of the customer peak load may be excluded from net metering and paid under the qualifying facility tariff instead. Note the denominator is peak load in kilowatts, not annual consumption, which is unlike most states.
  2. How long will review, approval and meter set take? Oklahoma publishes no timeline of any kind, so no defensible schedule can be given from any state source. Treat that as a real schedule risk rather than a missing data point.
  3. Do you require liability insurance? The rule is silent, neither requiring nor prohibiting it.
  4. What does your filed tariff add? The rule requires each utility to file a tariff enacting these provisions, and that tariff is where any fee, screen or timeline would live.

Worth knowing before you quote

Oklahoma publishes no capacity tiers, no screens, no fees, no insurance provision, no aggregate cap and no timelines, all confirmed by reading the chapter rather than inferred. The only technical gate is that the equipment be compatible with the particular line segment, which is entirely at the utility discretion. A producer must apply in writing before interconnecting and before selling energy.

Source

Oklahoma Administrative Code Title 165 Chapter 40, standard terms of purchases from purchasers of 300 kW or less, effective 25 July 2019

Read and recorded 2026-09-12. Oklahoma publishes a net metering purchase rate rule rather than an interconnection standard. The rule has no review levels, no technical screens, no study process and no timelines, confirmed by reading the whole subchapter. The Commission own net metering page links to this document as the operative rule. It reaches cooperatives and investor owned utilities; municipals are outside Commission jurisdiction and are not named.

What to do with this

Check a real address

The rules below are the general case. Run the free check to see which utility serves a specific address, which tier the system lands in, and what to ask.

Run the free check
Installers: keep the answer with the job

GridProjeX holds the project from here, with every value tied to the document it came from and the utility and permit tracks run to permission to operate.

How it works for installers
Utilities: see what applicants are told

The same published rules your applicants read here are the ones your queue sees. GridProjeX is the record both sides work from.

How it works for utilities

Also from CivyxIQ, if they fit what you already do: SolarProjeX for running the crews and the jobs, and Solar Home so the homeowner can follow their own project. Neither is needed to use the checker.