The vast majority of battery projects set to compete in Britain’s upcoming Capacity Market (CM) auctions will face significantly decreased de-rating factors after it emerged that most projects are still set to use either 30 minute or one hour duration batteries.

With the release of the most recent Capacity Market pre-qualification register, the UK’s utility-scale battery storage pipeline has now reached nearly 8GW. Solar Media market research analyst Lauren Cook takes a deep dive into the projects that made it through pre-qualification, and what these results mean for the projects likely to get built in 2018.

Changes to the de-rating factors for battery storage projects competing in the UK’s Capacity Market (CM) will push the sector towards longer-duration batteries, while potentially sparking a shift towards energy arbitrage as a source of revenue for shorter duration applications. David Pratt heard from several industry sources following last week’s announcement.

A sustainable energy company founded by Swindon Borough Council, a local authority in western England, has submitted plans for a 50MW battery energy storage system (BESS) for its latest project.

Future battery energy storage projects in the UK have been hit with a major blow after the government published its intention to lower the de-rating factor in capacity market auctions by almost 80% for 30 minute duration batteries.

UK renewables and battery developer Anesco has warned that the looming de-rating of battery storage in the Capacity Market risks scaring investors away from the technology.

Eelpower has commissioned a 10MW battery energy storage system (BESS) in England, backed with both frequency response and capacity market contracts, in the first of a new pipeline of projects being planned by the company over the next decade.

The UK government’s Department of Business, Energy and Industrial Strategy (BEIS) has refused to provide any clarity over when a decision on the potential de-rating of energy storage assets within the capacity market (CM) will be made despite a senior policy advisor stating the judgement is “imminent”.

The UK’s large-scale battery storage installations have reached 100MW of capacity, made up of around 50 individual sites larger than 250kW. Lauren Cook of Solar Media’s Market Research team discusses how this point has been arrived at and what we might expect to see coming next.

Chris Pritchett of UK law firm Foot Anstey recently served as moderator for the “Developers and financiers debate” at the Energy Storage Conference at the Solar & Storage Live 2017 show in England. Afterwards, Andy Colthorpe caught up with Chris for an in-depth interview on camera.