Cost recovery.

A. A public utility that undertakes cost-effective energy efficiency and load management programs shall have the option of recovering its prudent and reasonable costs along with commission-approved incentives for demand-side resources and load management programs implemented after the effective date of the Efficient Use of Energy Act through an approved tariff rider or in base rates, or by a combination of the two. Program costs and incentives may be deferred for future recovery through creation of a regulatory asset. Funding for program costs shall be as follows: (1) for investor-owned electric utilities, no less than three percent and no more than five percent of customer bills, excluding gross receipts taxes and franchise and right-of-way access fees, or seventy-five thousand dollars ($75,000) per customer per calendar year, whichever is less, for customer classes with the opportunity to participate; and (2) for gas utilities, no more than five percent of total annual revenues or seventy-five thousand dollars ($75,000) per customer per calendar year. B. Provided that the public utility's total portfolio of programs remains cost-effective, no less than five percent of the amount received by the public utility for program costs shall be specifically directed to energy-efficiency programs for low-income customers. C. Unless otherwise ordered by the commission, a tariff rider approved by the commission shall: (1) require language on customer bills explaining program benefits; and (2) be applied on a monthly basis. D. A tariff rider proposed by a public utility to fund approved energy efficiency and load management programs shall go into effect thirty days after filing, unless suspended by the commission for a period not to exceed one hundred eighty days. If the tariff rider is not approved or suspended within thirty days after filing, it shall be deemed approved as a matter of law. If the commission has not acted to approve or disapprove the tariff rider by the end of an ordered suspension period, it shall be deemed approved as a matter of law. The commission shall approve utility reconciliations of the tariff rider annually.