Pricing

UK Grid Status

Live settlement prices for the GB grid, updated every 20 minutes from Elexon; NESO transmission constraint data refreshes daily at 09:00 UTC.

SYSTEM PRICE
£-6.36/MWh
↓ 117.9% vs SP45SP46 · 21:30 UTC
MARKET INDEX (MID)
£32.60/MWh
APXMIDP average · SP46
System Sell Price — last 96 settlement periods (48h)
£-25£0£25£50£75£100£125£150£175£200£22522:00 UTC04:00 UTC10:00 UTC16:00 UTC22:00 UTC04:00 UTC10:00 UTC16:00 UTC

Transmission Constraints

Day-ahead constraint flows from NESO show how close each inter-regional boundary is to its physical transfer limit. Boundaries approaching 100% are a curtailment and BM pass-over risk for generators on the constrained side.

High utilisation — curtailment risk
SSE–Gregorthie MossSSE+GRMO296%
SSE–ScottishPower No.2SSE-SP2290%
SSEN SouthSSEN-S286%
Greater Manchester–Snowdon 5AGM+SNOW5A167%
North–South Transfer (B7)FLOWSTH101%
GM_SNOW5AGM_SNOW5A81%
GB schematic · day-ahead flows
SCOTLANDSCOTEX-1922/5200 MW↕ 3004/6100 MW (49%)N. ENGLANDHARSPNBLY-2011/6200 MW→ 11572/11500 MW (101%)S. ENGLANDESTEX-26/5400 MW<70%70–90%>90%
All boundaries · sorted by utilisation
SSE–Gregorthie MossCRITICAL
5030 / 1700 MW
296%
SSE–ScottishPower No.2CRITICAL
5078 / 1750 MW
290%
SSEN SouthCRITICAL
4009 / 1400 MW
286%
Greater Manchester–Snowdon 5ACRITICAL
2088 / 1250 MW
167%
North–South Transfer (B7)CRITICAL
11572 / 11500 MW
101%
GM_SNOW5A
1660 / 2050 MW
81%
South East Import (PR23)
4477 / 6700 MW
67%
SSE_GRMO
952 / 1700 MW
56%
Scotland–Harker No.3 (B6)
3004 / 6100 MW
49%
Scotland Export Cap
1922 / 5200 MW
37%
Harker–Penrith–Barnby
2011 / 6200 MW
32%
SSE_SP2
422 / 1750 MW
24%
SSEN_S
280 / 1400 MW
20%
Dresten–Hexham No.1
734 / 6450 MW
11%
N. Kilmarnock–Gregorthie Moss
754 / 10000 MW
8%
Eastern Export No.4
465 / 10000 MW
5%
Bolders–Selex No.1
317 / 10000 MW
3%
Eastern Export No.3
222 / 10000 MW
2%
Ninewells–Selex
171 / 10000 MW
2%
Candlerigg–Dunbar Export
20 / 3800 MW
1%
Candlerigg–Selex
19 / 3250 MW
1%
Dunbar–Selex
13 / 10000 MW
0%
Eastern Export (B6)
26 / 5400 MW
0%
Total constraint cost · last 7 days
£119.5m
Thermal + voltage + inertia + largest-loss · source: NESO
Daily total constraint cost (£) — last 30 days
£31.8m£15.9m08-14T00:00:00.00000008-16T00:00:00.00000008-18T00:00:00.00000008-2208-2608-3009-0309-08
Daily cost breakdown (£) · most recent 7 days
DateThermalVoltageInertiaTotal
2026-09-09£3.9m£236k£0£4.1m
2026-09-08£31.7m£99k£676£31.8m
2026-09-06£17.2m£788k£114k£18.1m
2026-09-05£16.1m£845k£108k£17.0m
2026-09-04£31.6m£104k£0£31.7m
2026-09-03£14.4m£183k£0£14.5m
2026-09-02£2.1m£54k£0£2.2m