Long-duration energy storage (LDES) development and investment company Frontier Power USA (FPUSA) has exercised its exclusive Selection Right with respect to four BESS projects from clean energy platform Stella Energy Solutions.
The projects being developed by Stella are the Blanquilla BESS Project, the Aransas Pass Project, the Nash Project and the Wallis Project. Collectively, the projects represent approximately 230MW/920MWh of capacity.
Energy-Storage.news asked the companies for clarification on the locations of the projects but did not receive word prior to publication.
At least two of the projects, the Blanquilla BESS and Aransas Pass Project appear to be located in Texas. Nash and Wallis may also be located in Texas, given Stella Energy’s development history, but it is unclear.
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Blanquilla is located in Nueces, Texas. The project has a 201MW capacity, and is expected online in December 2027.
Additionally, the projects are expected to use zinc hybrid cathode battery and storage system maker Eos Energy Enterprises, Inc’s Z3 zinc LDES battery technology. Closing remains contingent upon the successful closing of Eos’s recently announced rights offering.
The selected projects represent the first projects to advance under the previously announced strategic framework between FPUSA and Stella, which established a path to convert Stella’s late-stage development pipeline of mover 2GWh of BESS projects onto the FPUSA platform, with Stella serving as FPUSA’s designated execution partner.
The selected project portfolio is also expected to utilise FPUSA’s previously announced 2GWh capacity reservation agreement with Eos.
Upon execution of definitive agreements, FPUSA will fund 100% of construction equity to the projects, with Stella serving as the designated execution partner through to commercial operation.
FPUSA’s equity foundation is built upon the previously disclosed commitment from Cerberus Capital Management-managed funds and accounts, with additional backing anticipated from Hudson Bay Capital’s previously announced investment and capital raised through the rights offering.
The company has engaged KKR Capital Markets to assist in structuring long-term project financing across its portfolio.
Frontier Power maintains an active presence in the UK, having announced a partnership with Eos in April 2025 to deploy up to 5GWh of zinc hybrid cathode battery storage.
Targeting the UK regulator Ofgem’s new cap and floor revenue mechanism for LDES, Frontier Power has also formed a partnership with Anglo-American vanadium redox flow battery (VRFB) manufacturer Invinity. Through an agreement announced in February of last year, Frontier Power secured up to 2GWh of Invinity VRFB systems for project bids into the LDES support scheme’s solicitation rounds.
