Ameresco Partners with Atlantic Green for 300MW UK Battery Project
Ameresco has secured a $249 million contract and long-term service agreement with Atlantic Green to deliver a groundbreaking 300MW battery energy storage system (BESS) project in the UK. This ambitious scheme, featuring Envision Energy’s cutting-edge BESS technology, is set to begin construction by mid-2024.
Atlantic Green chose Ameresco and Envision Energy for the Cellarhead project after a competitive tender process. The Cellarhead BESS will connect to National Grid’s Cellarhead substation, enhancing the UK’s energy security and reliability. The connection to the electricity grid is expected by the end of 2026.
With a maximum energy capacity of 624 megawatt hours, the battery will support the increased adoption of clean energy generation, according to the developer. This project marks a significant step towards achieving the UK’s net-zero carbon emissions goals.
Atlantic Green, established in 2021 as a joint venture between Nofar Energy and Interland Group, focuses on investing in, developing, and operating grid-scale standalone battery energy storage systems across the UK. Ameresco’s involvement includes an Engineering, Procurement, and Construction (EPC) and Operations & Maintenance (O&M) contract, covering battery supply, balance of plant, warranty, and availability guarantees. The EPC full wrap price is $249 million.
Envision Energy will provide the BESS and associated services, including equipment warranties. Upon completion, Atlantic Green will own and operate the BESS as a critical energy storage asset.
Nick Bradford, Managing Director of Atlantic Green, emphasized the project’s importance: “We believe that continuous development of battery energy storage is vital in the UK’s journey to achieving net-zero carbon emissions, and we are excited to team up with Ameresco to bring this vision to life. Since our founding, Atlantic Green has consistently prioritized finding strategic ways to leverage our battery storage assets within the wider community. We are eager to meet the rising demand for battery storage with this new project, which offers substantial energy capacity to significantly impact the UK electricity system.”
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