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Tesla has landed another major win for its energy business, securing a new $275 million Megapack order tied to a landmark battery storage project in Scotland. Matrix Renewables has announced a full EPC (Engineering, Procurement, and Construction) agreement with Tesla to deliver a 500 MW/1 GWh standalone battery energy storage system (BESS) in Eccles, marking Matrix’s first standalone BESS project in the U.K.
The project is strategically located along key transmission corridors between Scotland and England and is designed to provide critical grid flexibility, improve system resilience, and enable greater integration of renewable energy. All planning conditions have already been discharged, with full consent secured to begin construction.
Matrix Renewables framed the project as a major step in its European expansion and the U.K.’s clean energy push. “We are delivering infrastructure at the scale required to support the UK’s transition to a clean, secure, and resilient power system,” said Sergio Arbeláez, Managing Director of Europe & Latam at Matrix Renewables. “This installation demonstrates our ability to execute complex, utility-scale storage projects through strong partnerships and a long-term strategic vision.”
For Tesla, the deal further cements the Megapack as its flagship utility-grade energy storage solution. Built for grid-scale applications, Megapack systems can store vast amounts of energy and dispatch it when needed, helping utilities smooth demand and better integrate intermittent renewable sources like wind and solar. The technology has already become a staple in large-scale battery projects worldwide, including multiple deployments across the U.K.
“We are excited to support Matrix Renewables with their entry into the UK, bringing Tesla’s track record in the market together with Matrix Renewables’ expertise and vision. We highly value the partnership with their team and look forward to executing this landmark project together,” said Mike Snyder, Energy Vice President at Tesla.
The announcement comes as Tesla continues to ramp up its energy storage ambitions globally. Earlier this year, the company unveiled Megapack 3 and Megablock, its next-generation utility-scale storage products, with Megapack 3 capable of storing 5 MWh of usable AC energy per unit while improving installation speed and long-term reliability. Megablock is also set to debut at a newly announced $220 million BESS project in Australia.
Tesla’s order book for Megapacks has grown rapidly, highlighted by a massive $2.7 billion order from Georgia Power in the U.S., a $375 million Megapack deal tied to xAI’s Colossus II data center, and several major battery projects across the globe.
For Matrix Renewables, the Eccles project represents one of its largest energy storage developments to date and a foothold in the U.K. market, with the company targeting up to 3 GW of additional capacity in the coming years. For Tesla, it’s another sign that grid-scale storage is becoming one of the most important pillars of its business.
