Source: https://tendernation.io/opportunities/01a13b92-7d76-7200-8f62-d534d5795d97/100572-walpole-sgt4-tertiary-connection awarded GB restricted procedure # 100572 Walpole SGT4 Tertiary Connection [National Grid Electricity Transmission plc](https://tendernation.io/buyers/national-grid-electricity-transmission-plc) Estimated value Not stated Published 13 Oct 2026 Deadline Rolling deadline ## About this tender The works comprise the completion of the remaining design & infrastructure works required for the Walpole SGT4 Tertiary Connection Project, including installation of a tertiary cable box on SGT4, a 13kV transformer, a 13kV disconnector and associated earthing switches, supporting structures, busbars and connectors, protection and control systems, substation control and ancillary systems, 13kV cable systems and terminations, LVAC and DC connections, testing and commissioning, interface commissioning with connection assets and the National Grid transmission system, and all associated civil engineering works. Source Find a Tender (UK) · Notice 096662-2026 [View official notice](https://www.find-tender.service.gov.uk/Notice/096662-2026) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile National Grid Electricity Transmission plc: past awards and live tenders](https://tendernation.io/buyers/national-grid-electricity-transmission-plc) ## More tenders like this [Bannister Sports Centre Athletic Track Soft Market Testing Exercise · Harrow Council · 38 days left · 26 Nov 2026](https://tendernation.io/opportunities/01a1540d-d9e4-71cb-ad57-1603e9042fec/bannister-sports-centre-athletic-track-soft-market-testing-exercise) [Hendon Library: School Libraries and Resources Service (SLRS) refit 2026/27 · London Borough of Barnet · 28 days left · 16 Nov 2026](https://tendernation.io/opportunities/01a154e4-41d4-73a3-9712-1003545b8a8c/hendon-library-school-libraries-and-resources-service-slrs-refit-202627) [Supply and Delivery of Grounds Machinery · Northern Ireland Housing Executive · 28 days left · 16 Nov 2026](https://tendernation.io/opportunities/01a154e4-43e1-7009-9f7c-436fa2a91825/supply-and-delivery-of-grounds-machinery) [Pest Control Services Concession 2027-30 (FH2610191) · The District Council of Folkestone and Hythe · 29 days left · 17 Nov 2026](https://tendernation.io/opportunities/01a154e4-44f9-7309-afae-daba3a678a46/pest-control-services-concession-2027-30-fh2610191) [NCC1999 NE Rural Growth Programme Evaluation · Northumberland County Council · 22 days left · 10 Nov 2026](https://tendernation.io/opportunities/01a154e4-464d-73d3-9c3e-e81aa703d9f0/ncc1999-ne-rural-growth-programme-evaluation) [SONI090 – Client-Side Advisor · SONI Ltd · 32 days left · 20 Nov 2026](https://tendernation.io/opportunities/01a154e4-4736-72ba-9b73-0e325c4a96e5/soni090-client-side-advisor)