Fluence Energy, a subsidiary of Siemens, and Excelsior Energy Capital have agreed to install 2.2 gigawatt-hours (GWh) of battery energy storage systems (BESS) in the US from 2025.
Excelsior will deploy Fluence’s Gridstack Pro product line, which will use battery cells manufactured in Tennessee and modules produced in Utah, utilising the Inflation Reduction Act’s (IRA) domestic content bonus.
Gridstack Pro is one of the first BESS projects set to qualify as domestic content under the IRA.mJohn Zahurancik, president of Fluence’s Americas business, said: “We are excited to support Excelsior on the deployment of 2.2GWh of Gridstack Pro. This deal is a testament to the competitiveness of US-manufactured battery storage systems.
“Excelsior and other customers see US manufactured products as a valuable way to mitigate uncertainties in their projects while supporting American jobs and local economic activity.”
Due to the intermittent nature of output from renewable sources such as wind and solar, BESS is critical to aligning supply and demand. BESS stores excess energy for times when there may be a shortage.
According to GlobalData, Power Technology’s parent company, the technology will help to drive down prices, as energy storage reduces costs by storing electricity obtained at off-peak times when retail prices are lower. During hours of peak demand, when grid electricity costs are high, the cheaper stored electricity can be used.
