Washington Administrative Code
Title 480 - Utilities and Transportation Commission
Chapter 480-106 - Electric companies-Purchases of electricity from qualifying facilities
Section 480-106-040 - Schedules of estimated avoided costs
Current through Register Vol. 24-06, March 15, 2024
(1) Filing requirement. A utility must file by November 1st of each year, as a revision to its tariff described in WAC 480-106-030 Tariff for purchases from qualifying facilities, a schedule of estimated avoided costs that identifies, both separately and combined, its avoided cost of energy and its avoided cost of capacity. All schedules of estimated avoided costs must include:
(2) Differentiating among qualifying facilities. A utility's estimated avoided cost of capacity may differentiate among qualifying facilities based on the supply characteristics of different technologies of qualifying facilities for purposes of calculating the estimated avoided cost of capacity.
(3) Schedule revisions. A utility may file to revise its schedule of estimated avoided costs prior to its next annual filing, provided that the commission may not allow such tariff revision to become effective until at least sixty days after such filing. Filing a revised schedule of estimated avoided costs in this subsection does not relieve the utility of its annual obligation to file a schedule in subsection (1) of this section if such filing occurs more than thirty days prior to such annual tariff filings.