# 2025-09198: FERC Greenlights Hydropower from California Water Pipes for 59 Homes

2025-09198, 3R Valve; Notice of Preliminary Determination of a Qualifying Conduit Hydropower Facility and Soliciting Comments and Motions To Intervene, is a Federal Register notice from Energy Department, Federal Energy Regulatory Commission published 2025-05-22, effective Deadline for filing comments, comments contesting qualification, and motions to intervene: June 12, 2025. (as of 2026-06-08).

- Canonical: https://policyrisk.com/federal-register/2025-09198
- As of: 2026-06-08
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2025-09198
- Title: 3R Valve; Notice of Preliminary Determination of a Qualifying Conduit Hydropower Facility and Soliciting Comments and Motions To Intervene
- Type: Notice
- Agencies: Energy Department; Federal Energy Regulatory Commission
- Citation: 90 FR 21912
- Published: 2025-05-22
- Effective: Deadline for filing comments, comments contesting qualification, and motions to intervene: June 12, 2025.
- Comments close: not stated
- Significant: no
- Touches household money: no
- Regulation identifier numbers: none
- Last updated: 2026-06-08

## In one line

FERC Greenlights Hydropower from California Water Pipes for 59 Homes

## Summary

The Federal Energy Regulatory Commission (FERC) is giving a thumbs-up to 3R Valve’s new small hydropower project in California, which will generate clean energy using water pipes. This project could produce enough electricity to power about 59 homes a year and is now open for public comments and challenges. If you’re interested, act fast—your chance to weigh in won’t last forever!

## Effects PRIA read

- Project Preliminarily Qualifies; No License: benefit, medium. FERC staff preliminarily found that 3R Valve’s Aquifer Pumped Hydro2 Project near Rosamond, Kern County, California meets the statutory criteria for a qualifying conduit hydropower facility. The project is described as four pump-as-turbine units with a total installed capacity of 236 kW and an esti…
- Public Comment and Intervention Window: benefit, low. Anyone may file comments, comments contesting whether the facility meets the qualifying criteria, or motions to intervene in this FERC proceeding. The deadline for those filings is June 12, 2025; FERC encourages electronic filing and allows brief eComments up to 6,000 characters without prior regis…

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## Sources
- [2025-09198 on federalregister.gov](https://www.federalregister.gov/documents/2025/05/22/2025-09198/3r-valve-notice-of-preliminary-determination-of-a-qualifying-conduit-hydropower-facility-and)
- [2025-09198 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2025-05-22/pdf/2025-09198.pdf)

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- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2025-09198 (as of 2026-06-08).