This report describes an interim revision to the Northwest Power and Conservation Council’s wholesale power price forecast. This forecast incorporates revised fuel price forecasts, estimated renewable resource acquisitions in response to state renewable portfolio standards, resource acquisitions needed to maintain target resource adequacy standards, and revised estimates of the future cost of CO2 production. This forecast supersedes the final wholesale power price forecast of the Fifth Power Plan. This forecast will be updated as the development of the Sixth Plan progresses.