Matrix Renewables signs contract with Tesla for 500 MW BESS in the UK

On 22 December 2025, Matrix Renewables said it had signed a full Engineering, Procurement, and Construction (EPC) agreement with Tesla for a standalone battery energy storage system. The project has a capacity of 500 MW with a two hour duration, equivalent to 1 GWh, and is located in Eccles, Scotland.

This is Matrix Renewables’ first standalone battery energy storage system (BESS) project in the UK. The company said the project is aligned with the UK’s Net Zero 2050 target and Clean Power 2035 ambition.

Under the agreement, Tesla will be responsible for the design, construction, and commissioning of the project. All planning conditions have been discharged, and full consent has been secured to begin construction. The site is located along key transmission corridors between Scotland and England and is expected to support grid flexibility, renewable energy integration, and system resilience.

Matrix Renewables said the project is supported by an advisory team, with Enertis Applus+ carrying out technical due diligence, GHD acting as Technical Advisor, and Black and Veatch serving as Owner’s Engineer.

The project marks Matrix Renewables’ entry into the UK market and is among its largest energy storage developments in Europe to date. The company added that it is pursuing further opportunities in the UK across renewable generation, energy storage, and emerging technologies, with plans to add up to 3 GW of additional capacity in the coming years.

Image Source: Matrix Renewables