DOE Closes $489.4 Million Loan for 220 MW of Puerto Rico Storage, Solar Dropped
- FERC & Federal News Policy & Markets
Marin Holt
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- 6 minutes read
- Loan closed: $489.4 million
- Storage financed: 220 MW
- Projected bill savings: $312.5 million over 25 years
- Original 2025 commitment: 180 MW storage plus a 70 MW solar plant
- Borrower: Amanecer Puerto Rico LLC, a Pattern Energy subsidiary
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The US Department of Energy closed a $489.4 million loan to Amanecer Puerto Rico LLC on August 5, 2026. Amanecer is a subsidiary of Pattern Energy. The money backs 220 MW of battery storage at sites in Arecibo and Santa Isabel. The department expects the projects to cut about $312.5 million from Puerto Rican electricity bills. That figure covers 25 years. The closed deal differs from the conditional commitment the department issued in January 2025. That earlier package covered 180 MW of storage plus a 70 MW solar plant.
What Changed
The January 2025 commitment described Project Amanecer as three stand-alone battery systems and a 70 MW-ac solar plant. The August announcement lists storage only. The new release adds language about a pathway for future dispatchable natural gas-fired generation. Greg Beard directs the Office of Energy Dominance Financing. He said the investment will strengthen the grid, lower electricity costs and support American manufacturing. The release does not explain why the solar component is absent from the closed loan.
Why It Matters
Puerto Rico has leaned on federal money to rebuild its grid since Hurricane Maria. Chronic outages are the reason this loan exists. Storage moves power in time. It does not add kilowatt-hours. A 70 MW solar plant was the cheapest new supply in the original package. Dropping it removes that supply. The $312.5 million savings figure carries no published breakdown for how storage alone delivers the number.
For developers tracking federal energy finance, the gas language is the more durable signal. A loan office names dispatchable gas as a future pathway inside a storage announcement. That describes the portfolio it wants next, not the one it just funded. Arecibo and Santa Isabel get batteries either way. The island still needs generation nobody has financed yet.
Critical Perspective
DOE published a $312.5 million savings claim alongside a closed loan of $489.4 million whose scope no longer includes the 70 MW solar plant. Storage without new generation shifts cost between hours, and on an island running imported fuel the arbitrage spread is set by the same oil-fired units this loan does not replace. The January 2025 conditional commitment belonged to a $1.2 billion round DOE closed for Puerto Rico as the prior administration ended, and PREPA has been in bankruptcy restructuring since 2017 with the grid still under federal rebuild. If the solar left the deal without the savings estimate moving, which number did the Office of Energy Dominance Financing actually recompute?
Sources
- https://www.energy.gov/edf/articles/does-office-energy-dominance-financing-closes-loan-strengthen-puerto-ricos-grid
- https://www.eenews.net/articles/doe-office-closes-489m-loan-to-support-puerto-rico-grid/
- https://www.washingtonexaminer.com/policy/energy-and-environment/4675742/trump-energy-department-cuts-solar-biden-loan-puerto-rico-grid/
- https://www.energy.gov/edf/articles/lpo-announces-conditional-commitment-subsidiary-pattern-energy-build-solar-pv-and
