Anesco Limited
Sells into the markets for 9 units at 9 sites, 16 MW together, over the 364 days to 27 September 2026. Everything here is measured from published settlement and auction results; wholesale trading is invisible for every optimiser, not just this one. None of them is a balancing mechanism unit, so the name comes from NESO's auction results alone and has no second register to be checked against.
The book
| Balancing mechanism, paid to discharge | £0 |
| Balancing mechanism, paid out to charge | £0 |
| Response and reserve auctions | £403k |
| Capacity market | £121k |
| Income across the book, per kilowatt | £32.85/kW/yr fleet 42.17 |
| Median unit, all three lines | £28.46/kW/yr |
What the book is made of
Performance follows portfolio shape as much as skill: a Scottish, long duration book does a different job from an English one hour book, so the mix belongs beside the money, not in a footnote.
Duration, by megawatt
Region, by megawatt
Whose batteries it sells
None of the book is its own. The one owner behind it is established from control filings, on the owner pages. A battery that re-registered under a new code is counted once.
| Owner | Batteries | MW |
|---|---|---|
| Gresham House Energy Storage Fund | 1 | 8 |
| owner not yet established | 8 | 8 |
Every unit it sells for
| Unit | MW | Balancing | Standing ready | CM | £/kW/yr |
|---|---|---|---|---|---|
| Littlebrook Essex and Kent | 8 | — | £185k | £121k | 28.46 |
| County Durham (ANSC-008) North East England | 1 | — | £39k | — | 38.71 |
| County Durham (ANSC-003) North East England | 1 | — | £39k | — | 38.65 |
| County Durham (ANSC-009) North East England | 1 | — | £39k | — | 38.76 |
| Ansc-005 South Lancashire, Yorkshire and Humber | 1 | — | £39k | — | 38.64 |
| Ansc-006 South Lancashire, Yorkshire and Humber | 1 | — | £27k | — | 27.11 |
| Stratford-on-Avon Mid Wales and The Midlands | 1 | — | £17k | — | 17.53 |
| Basingstoke and Deane Oxfordshire, Surrey and Sussex | 1 | — | £15k | — | 15.40 |
| Ansc-010 Mid Wales and The Midlands | 1 | — | £3k | — | 3.35 |
Registrations that moved to another seller
Anesco Limited sold these batteries until the date shown; each has since re-registered under a new code with somebody else. What each earned under this seller in the window is shown here and is not in the book above; the capacity is counted on the page of whoever sells it now.
| Battery | MW | Last ran here | Now sold by | Earned here |
|---|---|---|---|---|
| Newark and Sherwood ANSC-102 | 7 | 5 October 2024 | Equinicity LTD as RUFF-1 | — |
| Ansc-012 ANSC-012 | 4 | 26 February 2025 | Gore Street Energy Trading Limited as GSET-06 | — |
Attribution. A unit belongs to whoever the market registers as its seller today, so a book that changed hands mid year credits the whole year to the current seller. The exception is a battery that re-registered under a new code: it is counted once, under the code it runs on today, and where the earlier code sold through somebody else that seller keeps what it earned. We have recorded optimiser switches since 27 August 2026 and the record deepens from here. Corporate families are not joined: a platform selling through several registered entities appears as several rows on the optimiser list.