The type of electric interconnection which will be required of the producer will depend on and must be compatible with the location, size, and type of load to be served as well as the generating equipment and capacity. It is necessary that the producer obtain from the local office of the cooperative/utility the phase and voltage of the interconnection that will be furnished before proceeding with the purchase of generators or other equipment. Also, the point of purchase on the premises must be determined before the producer's wiring installation is made.
Okla. Admin. Code § 165:40-5-2