Vitreous LabsEnergy transparency

Bfse1

47 MW, about 94 MWh (2 hours, from the capacity market de-rating class) in Mid Wales and The Midlands. Everything on this page is read from published data for the 364 days to 22 September 2026, or is labelled as an estimate.

This registration has been superseded. The battery here has sold as Enderby since 1 December 2025; this code, sold by Arenko Cleantech Limited, last appeared on 24 November 2025. The page stays for the record, and the unit is no longer counted in fleet totals or ranked in the league.

What it is

Registered power47 MW response and reserve auction registration
Storage duration2.0 hours capacity market de-rating class
Charging zoneMid Wales and The Midlands
Connection siteBlaby
PostcodeLE19 4AD
Balancing mechanism unitnone found under the codes we search

Who owns it and who trades it

Traded byArenko Cleantech Limitedruns several sitesauction results, unchecked
Owned bynot published anywhere we can read

Market registers name the party that sells into the market, which for a battery is usually an optimiser under contract rather than the owner. This unit is registered only in the response and reserve auctions, so the seller is the participant NESO's auction results name, and Elexon's register carries no entry to check it against. How we tell them apart

What it earned

Line364 days to 22 September 2026
Balancing mechanismnot published
Response and reserve auctions auction implied£453k
Capacity marketno agreement we can attach
Three lines together£453k

Balancing is offer revenue and does not net off the cost of the power. The response and reserve figure is the value implied by the published auction results, award quantity times clearing price times the length of the delivery window, and not a settled payment. Capacity market income is at the price the agreement cleared at, before inflation uprating, so it is a floor. Method

Outside the balancing mechanism

No estimate for this registration. The battery sells under a newer code now, and anything estimated for it belongs on that page, so it is not counted twice. Method

The nearest comparables

The five nearest in size in England and Wales, and this battery among them, ranked by what each was paid for every kilowatt it holds over the 364 days to the same date. They run for about the same length of time. Same market, same rules, same weather.

BatteryMWHoursMeasured, per kW
Melksham East492h£112.2/kW/yr
Monets Garden492h£46.3/kW/yr
Enderby452h£30.5/kW/yr
SSE Salisbury492h£21.4/kW/yr
Bfse1this battery472h£9.7/kW/yr
Swangate492h£8.6/kW/yr

A second registration at this postcode, Bfse01, was active in the response auctions until 28 July 2025 and shows nothing this year. It is probably this battery under an earlier market identity; the pages are kept separate until that is established.

See it on the map

Open the operating map here

Every figure on this page traces to a published file. If something here is wrong about your asset, the methods section says how to tell us.