Roundponds Storage
16 MW in Cotswold. Everything on this page is read from published data for the 364 days to 19 August 2026, or is labelled as an estimate.
What it is
| Registered power | 16 MW response and reserve auction registration |
| Charging zone | Cotswold |
| Connection site | Wiltshire |
| Postcode | SN12 8DF |
| Balancing mechanism unit | none found under the codes we search |
Who owns it and who trades it
| Traded by | EQUINICITY LTDruns several sites |
| Owned by | HC ESS3 LIMITED |
| Owner established from | capacity market registered holder |
Market registers name the party that sells into the market, which for a battery is usually an optimiser under contract rather than the owner. How we tell them apart
What it earned
| Line | 364 days to 19 August 2026 |
|---|---|
| Balancing mechanism | not published |
| Response and reserve auctions auction implied | −£127k |
| Capacity market | £31k |
| Three lines together | −£97k |
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
The response line is negative, and that is what the published auction results say. The high direction response services, where a battery commits to absorbing power rather than exporting it, have been clearing below zero, so a unit holding those contracts pays for the position instead of being paid for it.
What it might have earned trading
We do not publish an estimate for this site, because its storage duration is not published and we could not measure it from behaviour. A one hour and a two hour battery of the same power are different businesses, and guessing which would be worse than saying nothing.
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.