(1) Except as provided in subsection (2), if the commission approves new classifications of service for customer-generators in accordance with 69-8-611, the new classifications apply only to customer-generators interconnecting net metering systems on or after the date on which the commission adopts a final order implementing the new classifications.
(2) (a) A customer-generator that interconnects a net metering system prior to commission approval of new classifications of service for customer-generators may accept service under the new classifications of service at any time.
(b) After accepting service under a new classification of service, the customer-generator may not return to its original classification of service.