Thornton Battery
200 MW in Great Britain. Everything on this page is read from published data for the 364 days to 8 October 2026, or is labelled as an estimate.
What it is
| Registered power | 200 MW balancing mechanism registration |
| Balancing mechanism unit | T_BLWNB-1 |
Who owns it and who trades it
| Traded by | Statkraft Markets Gmbhruns several sitesconfirmed, Elexon's register |
| Owned by | not 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. Elexon's balancing mechanism unit register names the seller here and the name is checked against it on every build. How we tell them apart
What it earned
| Line | 364 days to 8 October 2026 |
|---|---|
| Balancing mechanism | −£56k |
| Response and reserve auctions auction implied | £0 |
| Capacity market | no agreement we can attach |
| Three lines together | not netted |
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 the cleared price raised for inflation where the auction set a base period, split by month on EMRS's weights. Method
Outside the balancing mechanism, estimated from metered peers
Elexon publishes no metered output for this registration, an auction unit rather than a balancing mechanism unit, so nothing can be derived for it. What can be said is what its peers did: 9 units of about unknown hours in England and Wales, metered, earned between £-12.77 and £4.07 per kilowatt a year with the balancing legs and the position outside the balancing mechanism together, £-0.27 at the median. Applied to this unit's 200 MW that is −£54k, in a range of −£2.6m to £814k. An estimate from other batteries, never this one's figure. Method
Where it stands
| All three measured lineswhole fleet, £/kW/yr | 7th percentile230 units |
Percentiles, so 90 means better than nine in ten of the cohort named beside it, on that measure alone, over the same 364 days. Rates are pounds per kilowatt per year, annualised over the days the unit has been on the system, the same figures the performance league ranks on. A high position in the taken-in table is not a fault: a constraint asset is paid to charge, and charging is its job.
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. How long this battery can run for is not published, so duration is not used to choose them. Same market, same rules, same weather.
| Battery | MW | Hours | Measured, per kW |
|---|---|---|---|
| Thurrock Flexible (THURB-1) | 100 | 2h | £72.5/kW/yr |
| Dollymans Storage | 102 | 2h | £47.3/kW/yr |
| Thurrock Flexible (THURB-3) | 100 | 1.7h | £46.3/kW/yr |
| Lakeside BESS | 105 | 2h | £37.8/kW/yr |
| Thurrock Flexible (THURB-2) | 100 | 1.4h | £30.0/kW/yr |
| Thornton Batterythis battery | 200 | not known | not netted |
The three lines are not added together for this site. It paid £58k to charge and the lines we can measure paid it £2k. The energy it bought was sold in the wholesale market and nothing published measures that sale, so subtracting one from the other would show a loss it does not make.
See it on the map
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.