ERC Resolution No. 15, Series of 2026 – Revised FIT Adjustments and CPI Rebasing for 2021–2025
ERC amended FIT adjustments for 2021–2025 to align with updated CPI rebasing, ensuring accurate inflation-linked rates and clarifying recovery mechanisms for affected renewable energy plants.
5/11/20262 min read
SUMMARY
WHAT IT IS
Amends the previously approved Feed-in Tariff (FIT) adjustments for 2021–2025, recalibrating the adjustment methodology and tables to reflect updated Consumer Price Index (CPI) data and rebasing practices.
FIT-eligible renewable energy plants (Biomass, Run-of-River Hydro, Solar, Wind), including late entrants like SACASUN
WHO IS AFFECTED
KEY DEADLINES
Recovery of FIT rate differences begins in 2027.
TAKEAWAY
FIT-eligible plants should apply the revised adjustment table for 2021–2025 and prepare for recovery of any 2026 FIT rate differences starting 2027.
SACASUN should use 2016 entrant rates from 2023 onward.
KEY POINTS
Amends ERC Resolution No. 28, Series of 2025, specifically on FIT adjustments for 2021 to 2025.
Applies to all FIT-eligible renewable energy plants, including Biomass, Run-of-River Hydro, and specific entities such as San Carlos Sun Power, Inc. (SACASUN).
Revises the FIT adjustment table for 2021–2025 using recalibrated 2014 base CPI expressed in 2018=100, aligning with updated PSA CPI data.
Requires recalibration of the 2014 base CPI to the 2018=100 index for consistency in FIT adjustment calculations.
FIT adjustments for 2021–2025 are deemed complete, including for plants with later commercial operation dates.
SACASUN is assigned the adjusted FIT rates applicable to 2016 entrants, effective 2023, with no retroactive FIT recovery for prior years.
Any difference between FIT rates implemented in 2026 and the revised adjusted rates shall be recovered starting 2027, spread over the number of adjustment years unless otherwise determined by the Commission.
The ladderized FIT adjustment methodology remains in effect.
Covered entities must comply with the revised FIT rates and recovery mechanisms as stipulated.
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ERC Resolution No. 15, Series of 2026
Detailed policy analysis
Operational and compliance implications
Stakeholder impact assessment
Risk flags and ambiguities
Suggested next actions
PREMIUM REGULATORY ANALYSIS
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Tags: Feed-in Tariff, FIT Adjustment, CPI Rebasing, Renewable Energy, Rate Recovery, SACASUN