Frontier Power USA to Fund 480 MWh BESS Portfolio, Secures 92.5% Stake
BESS•Frontier Power USA will acquire a 480 MWh battery storage portfolio from Bimergen Energy, funding all construction equity and holding 92.5% ownership while Bimergen retains 7.5%. ERCOT assets comprise two Texas 10 sites and a 100 MW/400 MWh project using Eos Energy Z3 under 2 GWh reservation; NTPs by mid-2026.
1. Transaction Overview
Frontier Power USA agreed to acquire a 480 MWh battery storage portfolio from Bimergen Energy as the initial deployment under a 2 GWh capacity reservation agreement with Eos Energy.
2. Financing and Ownership Structure
An affiliate will fund 100% of construction equity and transaction expenses, granting Frontier Power USA a 92.5% stake while Bimergen retains a 7.5% interest and earns a development fee.
3. Portfolio Composition
The portfolio includes three ERCOT-based projects: two Texas 10 sites and a 100 MW/400 MWh installation, all slated for Notices-to-Proceed by mid-2026.
4. Deployment Timeline and Technology
All projects will deploy Eos Energy’s Z3 long-duration battery technology under the 2 GWh reservation framework, with execution partners engaged and NTPs expected in mid-2026.
