This isn't related to demand, but is relevant to the discussion around price. A number of of transmission links are being built to transfer electricity from Scotland to England [1] with the first 2 coming online in 2029.
They will help reduce costs by reducing:
1. Wind generation being curtailed.
2. Gas generation used to replace the curtailed wind (referred to as turn-up).
Based on the GB Transmission Constraints site data the costs as of Oct 2026 curtailment costs 257.96 £m and turn-up is 1,378.91 £m.
The article "Transmission Network Unavailability – the Quiet Driving Force Behind Rising Curtailment Costs in Great Britain" [3] article provides a good analysis.
They will help reduce costs by reducing:
1. Wind generation being curtailed.
2. Gas generation used to replace the curtailed wind (referred to as turn-up).
Based on the GB Transmission Constraints site data the costs as of Oct 2026 curtailment costs 257.96 £m and turn-up is 1,378.91 £m.
The article "Transmission Network Unavailability – the Quiet Driving Force Behind Rising Curtailment Costs in Great Britain" [3] article provides a good analysis.
1. https://en.wikipedia.org/wiki/Eastern_Green_Links
2. https://renewables-map.robinhawkes.com/curtailment
3. https://ukerc.ac.uk/news/transmission-network-unavailability...