Background
Portland General Electric Company sought to recover capital investments in two standalone energy storage projects through Oregon’s Renewable Automatic Adjustment Clause. That streamlined process permits utilities to recover specified renewable-energy expenses through rate adjustments without completing a general rate case.
PGE argued that the projects qualified as “associated energy storage” under ORS 469A.120(2)(a) because standalone storage helps integrate renewable electricity and maintain grid reliability. The Public Utility Commission rejected that interpretation, concluding that the statute covers storage more directly connected to the renewable-energy facility for which recovery is sought. PGE petitioned for judicial review of the commission’s final order.
The Court’s Holding
The Oregon Court of Appeals affirmed. Reading the statute’s text and context, the court held that “associated energy storage” refers to storage associated with the particular facilities that generate electricity from renewable sources—not broadly to every storage project that supports a grid containing renewable generation. The automatic-adjustment provision is a narrower cost-recovery mechanism than the statute’s general authorization to recover prudently incurred renewable-compliance costs.
The court did not hold that eligible storage must be physically co-located with a renewable-generating facility. It held instead that the storage must have the required association with particular renewable-generation facilities. Legislative history reinforced that interpretation because lawmakers considered and rejected language that would have extended automatic recovery to the broader range of renewable-compliance costs. PGE therefore could not obtain automatic recovery for the standalone projects on the theory it advanced, although it could seek recovery through a general rate case.
Key Takeaways
- ORS 469A.120(2)(a) does not authorize automatic recovery for every storage investment that supports renewable energy or overall grid reliability.
- Physical co-location is not required, but the storage or transmission costs must be associated with particular renewable-generation facilities.
- Other prudently incurred renewable-energy expenses may remain recoverable through the ordinary general-rate-case process.
Why It Matters
The decision preserves a narrow boundary around Oregon’s streamlined renewable-energy cost-recovery mechanism. Utilities cannot place systemwide storage costs within that mechanism merely because the projects facilitate renewable integration.
At the same time, the court left room for non-co-located storage to qualify when a utility can establish the required relationship to particular renewable-generation facilities. The ruling also maintains the Public Utility Commission’s broader oversight of other storage investments through general rate cases.