Key facts and figures
Figures are SDEN's or the Council's own unless stated. Check the linked source before you rely on any figure.
| Topic | Fact | Confidence | Source |
|---|---|---|---|
| Company | Sutton Decentralised Energy Network Ltd, Companies House number 10022446, registered office Civic Centre, Sutton SM1 1EA. Sole shareholder: London Borough of Sutton. | Verified | S1 |
| Directors | Five directors listed at Companies House in October 2026, of whom three are Council officers. Names are on the public register. | Verified | S1 |
| Customers | About 805 homes and a few businesses at New Mill Quarter, Hackbridge. Developer customer: Barratt (25-year supply contracts). | Verified | S3, S12 |
| Heat source today | Landfill-gas engines at Beddington with on-site gas boilers as back-up. | Verified | S3 |
| ERF heat | Heat Purchase Agreement with Viridor for up to 15 MW. Forecast start 1 April 2027. | Verified | S3, S19 |
| Reported losses | £76,753 (2023/24) and £100,568 (2024/25). Owed to the Council: £2,457,645 (draft accounts). | Verified | S2 |
| Forecast losses | £10k (2026/27), £20k (2027/28), £10k (2028/29); loans repaid by 2050/51 (SDEN forecast). | Verified | S3 |
| Availability | SDEN reports 99.99% availability in 2025 and one outage on 14 Nov 2025. Brochure said ‘100% availability’. | Verified | S3, S12 |
| Outages (press) | The Sutton Guardian (Dec 2023) reported an outage on 6 Dec 2023, affecting about 700 homes, as the 30th on the network since 2021. | Likely | S15 |
| 2026/27 tariff | Average 2-bed £750.02 v £770.81 domestic-gas comparator (about 2.7% lower), SDEN's own method. | Verified | S4 |
| Tariff error | An error left an Apr–Dec 2025 tariff increase unapplied (average undercharge £25–£35); reported to Ofgem. | Verified | S4 |
| Grant | £877,000 Green Heat Network Fund grant (March 2025); a £498,614 top-up was applied for on 23 Jan 2026 (outcome not seen). | Likely | S3, S4 |
| Loan | £1.015m loan (Council) for the Lavenders scheme approved Nov 2024; secured 15 Dec 2025. | Likely | S10, S3 |
| Carbon | SDEN projects 988 tCO2 a year saved from July 2023 at New Mill Quarter. No independent calculation seen. | Unverified | S3 |
| Regulation | Ofgem regulation live from 27 Jan 2026. | Verified | S22 |
| Large connections | Council forecasts construction costs ‘in excess of £50M’ for several large connections (London Cancer Hub, Croydon University Hospital and others). | Verified | S4, S6 |
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