Fotowatio Renewable Ventures’ UK partnership kicks off delayed 198MWh battery storage project

By Cameron Murray
July 21, 2022
LinkedIn
Twitter
Reddit
Facebook
Email

Fotowatio Renewable Ventures (FRV) and UK developer Harmony Energy have announced the initial construction works of the Clay Tye battery energy storage system (BESS), which they claim is the UK’s largest in construction. 

Clay Tye is in Essex, southeast England, and will be a two-hour duration system with a power rating of 99MW and an energy capacity of 198MWh. It will use 52 Tesla Megapacks and the EV giant’s optimisation platform, Autobidder.

Some readers may be confused by this announcement coming 10 months after Harmony announced that work had “started immediately” on the project. That signified the start of overhead line work, after which there was a short delay with an announcement on 18 July signifying the official start, sister site Solar Power Portal was told by a source close to the project. 

To read the full version of this story, visit Solar Power Portal.

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

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

Premium
March 26, 2026
BESS fund manager Gore Street Capital’s director of asset management Daniel Sherlock-Burke recently discussed the work it is doing around capturing and making use of its huge quantities of operational data.
March 24, 2026
Tapas Peshin of energy management software provider PCI Energy Solutions, on one of the biggest changes in Texas’ ERCOT market for battery storage assets.
March 24, 2026
Envision Energy’s director of energy storage solutions, Michael Koller, speaks with Energy-Storage.news at Energy Storage Summit 2026 in London, UK.
March 20, 2026
Energy-Storage.news proudly presents our webinar with GridBeyond, ‘Beyond Arbitrage: Financial Strategies for Energy Storage Assets.’
March 19, 2026
UK battery storage projects won a combined 1.8GW of capacity market (CM) obligations across the T-1 and T-4 auctions.