Bonneville Power jacks rates 6.3% after eco-lawsuit drama
Published Date: 9/17/2026
Notice
Summary
Bonneville Power Administration is updating its power rates for 2026-2028 after a court ruling involving environmental groups and Oregon. They plan to add new rate adjustment rules that will raise power costs by about 6.3%, bringing in an extra $250 million. This change affects customers using Priority Firm Non-Slice power and kicks off with a public hearing in early October 2026.
Analyzed Economic Effects
2 provisions identified: 0 benefits, 2 costs, 0 mixed.
Proposed $250M Power Rate Increase
Bonneville proposes to recover an additional $250,000,000 from power rates for the remainder of the BP-26 rate period. That proposal would raise the average effective Priority Firm Non-Slice power rate by 6.3 percent, the average effective Industrial Firm power rate by 5.3 percent, and the average effective New Resources Firm power rate by 2.2 percent.
Which Products Rates Will Change
The proposed adjustment mechanisms (the Court-Ordered Operation Rate Adder, COORA, and the COORA True-Up) would be added to GRSP section II.AD and apply to PF-26 products: Load Following, Block, and the Block portion of Slice/Block. They also apply to power purchased at the PF Melded Rate (PF-26), the Industrial Firm Power Rate (IP-26), and the New Resource Firm Power Rate (NR-26). The mechanisms would adjust the PF Tier 1 Equivalent Energy Rates (GRSP II.AA), the Load Shaping Charge True-Up Rate (GRSP II.E, Section 1), and the PF Melded Equivalent Energy Scalar Rate (GRSP II.R, Section 1(c)).
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Key Dates
Department and Agencies
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