GridStor has acquired the Birdseye project, a 199MW/796MW-hours battery energy storage facility to be built in Adams County, Colorado, US, from Accelergen.
The financial terms of the deal were not disclosed.
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The transaction marks GridStor’s second acquisition in the western US and its fifth overall in the past 18 months.
GridStor said that the acquisition and its plans to build additional stand-alone battery storage facilities in the western US come at a time when the region is experiencing rapid growth in energy demand.
The Birdseye project, once built, is expected to meet the power requirements of more than 150,000 households during peak demand periods.
Accelergen CEO Thomas Houle said: “Growing regions are reliant on dependable sources of energy to sustain their momentum.
“Battery storage provides a stable foundation for economic growth by supporting a reliable grid, and we are pleased to partner with GridStor to see this project through to operations.”
The Birdseye project aims to start operations in late 2028, with construction possibly beginning in 2027. It is expected to generate around 115 full-time jobs during the construction phase.
The battery project is set to bring substantial investment to Adams County, offering long-term advantages such as stabilising energy costs, creating local employment and boosting tax revenue to support essential services.
Additionally, it aims to enhance grid reliability and reduce greenhouse gas emissions.
Over its lifetime, the project is expected to generate at least $18m in tax revenue, contributing to the area’s economic development.
GridStor CEO Chris Taylor said: “We are actively expanding our portfolio by acquiring high-quality projects. One of our core strengths is efficiently transitioning projects from the development phase to operational status.
“We look forward to bringing more battery storage facilities online to support power system reliability for Western utilities.”
Supported by Goldman Sachs Asset Management, GridStor oversees 530MW/1.3GW-hours of battery storage assets that are either operational or under construction.
The company also has more than 3GW of battery projects in advanced development stages in the western and central US.
In March this year, GridStor secured a $120m financing package from NORD/LB and Siemens Financial Services for the Gunnar Reliability Project, a battery energy storage facility in Texas.
