Company: POR
Filing Date: 2025-07-25
Form Type: 10-Q
Source: 0000784977-25-000136
Chunk: 156

Company: PORTLAND GENERAL ELECTRIC CO /OR/
Filing Date: 2025-07-25
Form: 10-Q
Item: Part I, Item 8
Chunk 156
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3)                        71 65 99 86 6 5 Wind (4)90 91 98 102 10 11 Hydro 97 94 101 93 5 5 

(1)Plant availability represents the percentage of the period plants were available for operations, which is impacted by planned maintenance and forced, or unplanned, outages.

(2)Projected levels of energy are included as part of PGE’s AUT. Such projections establish the power cost component of retail prices for the following calendar year. Any shortfall is generally replaced with power from higher cost sources, while any excess generally displaces power from higher cost sources.

(3)Plant availability reflects Colstrip, which PGE does not operate.

(4)Plant availability includes Wheatridge Renewable Energy Facility and Clearwater, which PGE does not operate.

Energy received from PGE-owned and jointly-owned thermal plants during the six months ended June 30, 2025 compared to 2024 increased 14%. This increase was primarily driven by fewer outages in 2025 as compared to 2024. Energy expected to be received from thermal resources is projected annually in the AUT based on forecast market prices, variable costs to run the plant, and the constraints of the plant. PGE’s thermal generating plants require varying levels of annual maintenance, which is generally performed during the second quarter of the year.

Total energy received from hydroelectric generation sources, both PGE-owned generation and purchased, increased 9% during the six months ended June 30, 2025 compared to 2024 primarily due to more favorable hydro conditions in the current period. Energy purchased from mid-Columbia and other regional hydroelectric projects increased 10% while energy generated by the Company-owned facilities increased 4% during the six months ended June 30, 2025. Energy expected to be received from hydroelectric resources is projected annually in the AUT based on a modified hydro study, which utilizes 10 years of historical stream flow data. See “Purchased power and fuel” in the Results of Operations section in this Item 2, for further detail on regional hydro results.

Energy received from PGE-owned and under contract wind resources decreased 9% during the six months ended June 30, 2025 compared to 2024. Energy expected to be received from wind generating resources is projected annually in the AUT based on historical generation. Wind generation forecasts are developed using a 5-year rolling average of historical wind levels or forecast studies