- Developer Spearmint Energy has acquired a portfolio of battery energy storage system (BESS) projects totalling 900MW in the ERCOT, Texas market, set to come online in 2025.
- The state has a highly deregulated energy sector with no centralised capacity auctions and relative freedom to set up generating units to play into energy markets.
Developer Spearmint Energy has acquired a portfolio of battery energy storage system (BESS) projects totalling 900MW in the ERCOT, Texas market, set to come online in 2025. Spearmint Energy, formed recently and bought its first project in mid-2022, has acquired the portfolio from “one of the largest developers and operators of clean energy projects in the United States”. The portfolio is called ‘Nomadic’ and comprises three projects of 300MW, each located in Cooke, Galveston, and Brazoria counties. The projects may reach a combined energy capacity of 2,000MWh with an average duration of 2.2 hours.
It builds on the firm’s purchase of a Revolution, a 150MW/300 MWh project in West Texas, on which engineering, procurement and construction (EPC) contractor Mortensen began construction in November 2022 with an estimated COD in mid-2023.
Andrew Waranch, Spearmint CEO, said: “A collection of state-of-the-art energy storage projects, Nomadic will enable Spearmint to continue to execute our mission of facilitating the clean energy revolution by delivering renewable power to the grid efficiently, safely, and where communities need it most.”
BESS projects in the state mainly provide ancillary services, RRS (regulation reserve service) and RRS-FFR (fast frequency response), as well as energy trading around the most congested nodes of the grid. The state has a highly deregulated energy sector with no centralised capacity auctions and relative freedom to set up generating units to play into energy markets. ERCOT is an islanded grid with no interconnections to the Eastern or Western Interconnections. The US has two large grids within which several ISOs (CAISO, PJM, MISO, etc.) operate in different territories.
Source: Energy Storage News