Coalburn 1 is the first of three UK transmission-connected battery energy storage system (BESS) projects developed by Copenhagen Infrastructure Partners (CIP) to enter commercial operations. The post Europe’s largest battery comes online in Scotland appeared first on pv…
Republished by AIC Engineering. All rights belong to the original publisher; see Source below.
The 500 MW/1 GWh Coalburn 1 BESS has entered commercial operations at a former coal mining site in Scotland, according to CIP. The project is now the largest operational BESS in Europe.
Construction at the Coalburn 1 site in South Lanarkshire, near Glasgow, began in November 2023 according to CIP’s local development partner Alcemi. CIP divested 50% of the project to insurer Axa IM Alts in April 2025.
Revenues for Coalburn 1 will include a 10-year optimization agreement with SSE, plus a 15-year capacity market contract covering 300 MW of power output, plus a seven-year contract covering 75 MW. The project will be managed by independent renewables company RES, which signed an agreement in July 2025 to manage the site.
Coalburn 1 is the first in a trio of 1 GWh BESS projects CIP is developing in Scotland. Coalburn 2 and Devilla are also being built as transmission-connected assets.
Battery technology provider e-STORAGE, a subsidiary of Canadian Solar, is supplying all three projects. The fund divested a stake in Devilla in June, sharing risk with outside funds.
Nischal Agarwal, partner at CIP, said the successful delivery of Coalburn 1 was an important milestone for the renewables investor.
“As Europe’s largest operational battery energy storage system, Coalburn 1 will enhance the flexibility and resilience of the UK electricity system, support the integration of more renewable power, and contribute to lowering costs for consumers. Alongside Coalburn 2 and Devilla this project demonstrates CIP’s industrial capabilities in developing, commercializing and delivering energy infrastructure at scale.”
CIP is working on a portfolio of battery storage facilities in the United Kingdom with local partner Alcemi. Including Coalburn 1, the portfolio consists of seven grid-scale BESS projects with a combined power output of 4.3 GW.
Source
- PV Magazine (2026-08-12)
- Original article: Europe’s largest battery comes online in Scotland