Accelerated Strategic Transmission Investment: Material Scope Change and Early Construction Funding - EGL3, EGL4 and GWNC

Accelerated Strategic Transmission Investment: Material Scope Change and Early Construction Funding - EGL3, EGL4 and GWNC | Ofgem Please enable JavaScript in your web browser to get the best experience. BETA This site is currently in BETA. Help us improve by giving us your feedback . Close alert: Accelerated Strategic Transmission Investment: Material Scope Change and Early Construction Funding - EGL3, EGL4 and GWNC Publication type: Consultation Publication date: 11 September 2025 Last updated: 9 December 2025 Closed date: 10 October 2025 Status: Closed (with decision) Topic: Electricity transmission Subtopic: Accelerated Strategic Transmission Investment (ASTI) Print this page Share the page Share on Facebook Share on Twitter Share on LinkedIn Details of outcome This decision sets outs our determination on a request from the Transmission Owners (TOs) to update outputs, target delivery dates and funding arrangements for three Accelerated Strategic Transmission Investment (ASTI) projects following a material scope change to the original network design in respect of: Eastern Green Link 3 (EGL3): Eastern Scotland to England 3rd link Peterhead to the West Norfolk offshore HVDC Eastern Green Link 4 (EGL4): Eastern subsea HVDC link from East Scotland to the West Norfolk GWNC: New 400kV double circuit between South Humber and South Lincolnshire This decision also sets out our determination for Early Construction Funding (ECF) in respect to EGL3 and EGL4 and recalibration of Pre-Construction Funding (PCF) in respect of all three projects. Read the full outcome Accelerated Strategic Transmission Investment: Material Scope Change and Early Construction Funding - EGL3, EGL4 and GWNC [PDF, 470.72KB] Non-confidential consultation responses: ASTI Material Scope Change and Early Construction Funding - EGL3, EGL4 and GWNC [ZIP, 4.15MB] Original consultation This consultation sets outs our minded-to position on a request from the Transmission Owners (TOs) to update outputs, target delivery dates and funding arrangements for three Accelerated Strategic Transmission Investment (ASTI) projects following a material scope change to the original network design in respect of: Eastern Green Link 3 (EGL3): Eastern Scotland to England 3rd link Peterhead to the West Norfolk offshore HVDC Eastern Green Link 4 (EGL4): Eastern subsea HVDC link from East Scotland to the West Norfolk GWNC: New 400kV double circuit between South Humber and South Lincolnshire This consultation also sets out our minded-to position for Early Construction Funding (ECF) in respect to EGL3 and EGL4 and for additional Pre-Construction Funding (PCF) in respect of EGL3. Consultation documents Consulation: Material Scope Change and Early Construction Funding - EGL3, EGL4 and GWNC [PDF, 781.83KB] Print this page Share the page Share on Facebook Share on Twitter Share on LinkedIn Close