Vitreous LabsEnergy transparency

Pulse Clean Energy

Owns 8 batteries at 8 sites, 194 MW, which is 2.5 per cent of everything operating in Great Britain. It sells none of that power itself. The register names 3 other companies as the sellers: Habitat Energy Limited, Flexitricity Limited and Limejump Energy Limited.

8batteries, counting a re-registered battery once
194 MWof the 7,779 MW operating fleet
£38/kW/yrpaid across the three measured lines, against £42 for the whole fleet
7 of 8confirmed on a control filing or the owner's own statement, the rest 1 probable

Who sells its power

The balancing mechanism register names the company allowed to sell each unit's power. That company is usually an optimiser or a supplier working under contract, which is why the registers cannot answer the ownership question on their own. Where the seller is one of the owner's own companies, the row says so.

Habitat Energy Limited 100 MW · Flexitricity Limited 57 MW · Limejump Energy Limited 37 MW
SellerBatteriesMWOf this fleet
Habitat Energy Limited510052%
Flexitricity Limited25729%
Limejump Energy Limited13719%

What it was paid

The three published lines, added up across the fleet for the 364 days to 27 September 2026. Wholesale trading income is invisible for every owner, not just this one, and nothing here nets the cost of charging. The rate is per kilowatt of current capacity.

Balancing mechanism, paid to discharge£0
Balancing mechanism, paid out to charge£0
Response and reserve auctions£6.3m
Capacity market£1.1m
Income across the fleet, per kilowatt£38.05/kW/yr fleet 42.17
Median battery, all three lines£19.83/kW/yr

What the fleet is made of

Duration, by megawatt

about 1 hour 79 MW · 2 hours and up 94 MW · not published 21 MW

Region, by megawatt

England and Wales 194 MW

Every battery it owns

BatteryMWSold byGrade£/kW/yr
Hyde
North Midlands and North Wales
37Limejump Energy Limitedconfirmed31.73
Atherton
South Lancashire, Yorkshire and Humber
30Flexitricity Limitedconfirmed16.88
Charnock Richard
South Lancashire, Yorkshire and Humber
27Flexitricity Limitedconfirmed19.83
Rhondda Cynon Taf (HIRWB-1)
South Wales and Gloucester
21Habitat Energy Limitedprobable108.02
Pulse Clean (HAB12-FFR)
South Wales and Gloucester
21Habitat Energy Limitedconfirmed17.36
Pulse Clean (HAB13-FFR)
South Wales and Gloucester
21Habitat Energy Limitedconfirmed12.84
Willoughby
Mid Wales and The Midlands
20Habitat Energy Limitedconfirmed64.70
Flatworth
North East England
17Habitat Energy Limitedconfirmed56.98

One battery ran under an earlier registration for part of the year, HAB-19. The money earned under the earlier code is in the book above; the capacity is counted once.

How we know

Confirmed means a control filing at Companies House, or the owner's own published statement, names the company. Probable means the evidence is strong and indirect. Named means the register leaves the owner blank, the balancing code carries the owner's initials, and a sibling unit at the same site is already settled. Each chain below is printed once, with the batteries it settles.

Confirmed Hyde, Atherton, Charnock Richard, Pulse Clean (HAB12-FFR), Pulse Clean (HAB13-FFR), Willoughby, Flatworth
Pulse Clean Energy UK Limited was Green Frog Power 214 Limited until December 2021 and Pulse Clean Energy Limited was Green Frog Power Limited until January 2022. Both sit under Pulse Clean Energy Topco Limited. Source

Probable Rhondda Cynon Taf (HIRWB-1), Rhondda Cynon Taf (HAB-19) (earlier registration)
The register names no owner for the Hirwaun units. The capacity market register holds a Pulse Clean Energy Limited site called Hirwaun 900 metres away, which is the usual gap between a postcode centre and a capacity market grid reference, and HIRWB is Hirwaun shortened. Source

Attribution. A battery belongs to whoever the documents name today, so a fleet that changed hands during the year credits the whole year to the current owner. Groups are joined only where a filing joins them; a company that holds through several vehicles appears once, under the name at the top of the chain. Directors and registered offices are never used as evidence on their own. Why the registers cannot answer this question

All owners