Swan Lake pumped storage

Rye Development · Northeast of Klamath Falls, Klamath County, OR · Oregon

Closed-loop pumped hydro (about 9.5 hours) owned by Copenhagen Infrastructure Partners. 50-year FERC license in 2019; construction was expected to start in 2024 pending final FERC approval.

Long-duration storage · Multi-day, thermal and mechanical storage SEE CONNECTIONS →

ANNOUNCED
DEVELOPMENT
PERMITTED
FINANCED
CONSTRUCTION
OPERATING

Power

393 MW

Long-duration storage · Scaling

Storage

—

energy capacity

Online

Late 2020s or early 2030s

approximate target

Capital committed

—

closed or awarded

Capital pending

—

conditional or under review

Capital stack

0 SOURCES

No project-level financing disclosed yet.

Milestones

2019FERC issues the 50-year license
Apr 2024Final design announced; construction expected to start pending final FERC approval
Jan 2026Rye says none of its pumped storage projects has broken ground; Swan Lake (owned by CIP since 2020) could start first

Grid, permits and build

Grid connection: PacifiCorp queue #687 (Swan Lake North Hydro LLC): 415.8 MW at the Malin 500 kV substation; suspended at end of 2024
Permits: 50-year FERC license (2019)

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Swan Lake pumped storage

Capital stack

Milestones

Grid, permits and build

Swan Lake pumped storage

Capital stack

Milestones

Grid, permits and build

Who buys and who finances

Dependencies

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