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Following review by the Regulatory Authorities of the TSOs’ Report on Ensuring a Secure, Reliable and Efficient Power System in July 2011 the TSOs were requested by the SEM Committee to put in place a programme of work to solve the challenges associated with increased levels of penetration of variable non-synchronous renewable generation.
In response the TSOs formally commenced the DS3 Programme in September 2011. The overall aim of the DS3 Programme is to put in place the required changes to system policies, system tools and system performance to meet the challenges of operating the electricity system in a secure manner while achieving the 2020 renewable electricity targets. A key aspect of this operational challenge is the increase of System Non- Synchronous Penetration (SNSP) from the 2011 limit of 50% to 75%.
| Supplier | Identifier | Award Value | Lots Won | Cross-References |
|---|---|---|---|---|
| Altamuskin Windfarm Limited | NI055984 | ~£2,188,039 estimated from lot values | 4 lots POR L1NI - Primary Operating Reserve · SOR L2NI - Secondary Operating Reserve · TOR1 L3NI - Tertiary 1 Operating Reserve · FFR L12NI - Fast Frequency Response | - |
| GridBeyond (formerly Endeco Technologies Ltd) | Procurement ID: PQJL-8223-QHRT | £162,852 | 5 lots TOR1 L3NI - Tertiary 1 Operating Reserve · TOR2 L4NI - Tertiary 2 Operating Reserve · RRD L5NI - Replacement Reserve (De-Synchronised) · RRS L6NI - Replacement Reserve (Synchronised) · RM1 L9NI - Ramping Margin 1 Hour | - |
| Orsted Onshore UK Limited | 06636519 | ~£2,188,039 estimated from lot values | 4 lots POR L1NI - Primary Operating Reserve · SOR L2NI - Secondary Operating Reserve · TOR1 L3NI - Tertiary 1 Operating Reserve · FFR L12NI - Fast Frequency Response | CH MISMATCH CF says 06636519, but CH says it's PERIGUS ENERGY UK LIMITED |
| Powerhouse Generation Limited | NI619465 | £6,760 | 4 lots TOR2 L4NI - Tertiary 2 Operating Reserve · RRD L5NI - Replacement Reserve (De-Synchronised) · RM1 L9NI - Ramping Margin 1 Hour · RM3 L10NI - Ramping Margin 3 Hour | - |
| Wheelhouse energy (NI) Limited | NI073607 | ~£2,188,039 estimated from lot values | 4 lots POR L1NI - Primary Operating Reserve · SOR L2NI - Secondary Operating Reserve · TOR1 L3NI - Tertiary 1 Operating Reserve · FFR L12NI - Fast Frequency Response | - |
Taken from this notice, not from Companies House. Check the original notice — details change and are not updated here.
This procurement was divided into 12 lots, each awarded separately.
| Lot | Value | Awarded To | Status |
|---|---|---|---|
| Lot 1 POR L1NI - Primary Operating Reserve Apr 2026 – Sept 2026 | £2,870,833 | Wheelhouse energy (NI) Limited Altamuskin Windfarm Limited Orsted Onshore UK Limited | pending |
| Lot 2 SOR L2NI - Secondary Operating Reserve Apr 2026 – Sept 2026 | £2,870,833 | Wheelhouse energy (NI) Limited Altamuskin Windfarm Limited Orsted Onshore UK Limited | pending |
| Lot 3 TOR1 L3NI - Tertiary 1 Operating Reserve Apr 2026 – Sept 2026 | £2,870,833 | Wheelhouse energy (NI) Limited Altamuskin Windfarm Limited Orsted Onshore UK Limited GridBeyond (formerly Endeco Technologies Ltd) | pending |
| Lot 4 TOR2 L4NI - Tertiary 2 Operating Reserve Apr 2026 – Sept 2026 | £2,870,833 | Powerhouse Generation Limited GridBeyond (formerly Endeco Technologies Ltd) | pending |
| Lot 5 RRD L5NI - Replacement Reserve (De-Synchronised) Apr 2026 – Sept 2026 | £2,870,833 | Powerhouse Generation Limited GridBeyond (formerly Endeco Technologies Ltd) | pending |
| Lot 6 RRS L6NI - Replacement Reserve (Synchronised) Apr 2026 – Sept 2026 | £2,870,833 | GridBeyond (formerly Endeco Technologies Ltd) | pending |
| Lot 7 SSRP L7NI - Steady State Reactive Power Apr 2026 – Sept 2026 | £2,870,833 | - | active |
| Lot 8 SIR L8NI - Synchronous Inertial Respons Apr 2026 – Sept 2026 | £2,870,833 | - | active |
| Lot 9 RM1 L9NI - Ramping Margin 1 Hour Apr 2026 – Sept 2026 | £2,870,833 | Powerhouse Generation Limited GridBeyond (formerly Endeco Technologies Ltd) | pending |
| Lot 10 RM3 L10NI - Ramping Margin 3 Hour Apr 2026 – Sept 2026 | £2,870,833 | Powerhouse Generation Limited | pending |
| Lot 11 RM8 L11NI - Ramping Margin 8 Hour Apr 2026 – Sept 2026 | £2,870,833 | - | active |
| Lot 12 FFR L12NI - Fast Frequency Response Apr 2026 – Sept 2026 | £2,870,837 | Wheelhouse energy (NI) Limited Altamuskin Windfarm Limited Orsted Onshore UK Limited | pending |