UK developer Clearstone unveils first project in 2.2GW BESS pipeline

LinkedIn
Twitter
Reddit
Facebook
Email

UK battery storage project developer Clearstone Energy has unveiled the first project in a 2.2GW pipeline, the largest by an independent developer, it claimed.

The 400MW/800MWh Junction 27 project in the South West of England is the first site in a UK BESS project pipeline of 8 large-scale projects with a combined capacity of 2.2GW for which Clearstone Energy is aiming to seek planning consent over the next 12 months.

Three of the projects are 400MW while the remainder are planned to be 300MW/200MW.

The Junction 27 Energy Hub is on low-grade agricultural land near existing transport infrastructure on the M5 corridor in Devon. The project will “help balance electricity supply and demand across Devon and Cornwall and reduce reliance on gas-fired power stations,” according to Clearstone.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

Clearstone says the project has received “broad support from the local community during a public consultation this summer before planning submission.” The project includes a major biodiversity component and “will deliver a comprehensive community value offering” including financial support for low income households to implement energy efficiency savings.

The pipeline projects have energisation dates from 2027-2032, which Clearstone says ”represents the largest near-term battery energy storage pipeline in the UK originated by an independent developer.”

This article was originally posted on our sister site Solar Power Portal.

13 October 2026
London, UK
Now in its second edition, the Summit provides a dedicated platform for UK & Ireland’s BESS community to share practical insights on performance, degradation, safety, market design and optimisation strategies. As storage deployment accelerates towards 2030 targets, attendees gain the tools needed to enhance returns and operate resilient, efficient assets.

Read Next

July 24, 2026
It’s been a busy week for the large-scale energy storage market in Poland, with projects moved to construction and delivery by EDF Power Solutions & Eurus Energy Europe, Eiffel Investment Group & Ergy, R.Power Renewables, and EDP.
July 22, 2026
Activity in Italy’s grid-scale market is accelerating, with Sonnedix and the Strioga Family Foundation acquiring projects totalling over 1GWh combined, while BNZ and RWE have ordered BESS from Sungrow and LONGi respectively totalling 540MWh.
July 22, 2026
With the Energy Storage Awards 2026 entry deadline less than two months away, we speak to four judges to hear what they are looking for from successful entrants.
July 22, 2026
Delta Capacity has brought online the Nordic region’s biggest project to date and has acquired another project that would be almost twice the size.
July 20, 2026
The shareholders of the 900MW Waltrop BESS project in Germany have approved key infrastructure works for the project, with full construction scheduled for the next few months.