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
£158.52/MWh
↓ 6.3% vs SP44SP45 · 21:00 UTC
MARKET INDEX (MID)
£158.52/MWh
APXMIDP average · SP45
System Sell Price — last 96 settlement periods (48h)
£100£125£150£175£200£225£250£275£30021:30 UTC03:30 UTC09:30 UTC15:30 UTC21:30 UTC03:30 UTC09:30 UTC15:30 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
SSEN SouthSSEN-S184%
SSE–ScottishPower No.2SSE-SP2133%
Scotland–Harker No.3 (B6)SSHARN3110%
SSE–Gregorthie MossSSE+GRMO108%
North–South Transfer (B7)FLOWSTH81%
Scotland Export CapSCOTEX81%
GB schematic · day-ahead flows
SCOTLANDSCOTEX3207/3950 MW→ 4941/4500 MW (110%)N. ENGLANDHARSPNBLY3486/4800 MW→ 7106/8800 MW (81%)S. ENGLANDESTEX671/4750 MW<70%70–90%>90%
All boundaries · sorted by utilisation
SSEN SouthCRITICAL
2389 / 1300 MW
184%
SSE–ScottishPower No.2CRITICAL
2265 / 1700 MW
133%
Scotland–Harker No.3 (B6)CRITICAL
4941 / 4500 MW
110%
SSE–Gregorthie MossCRITICAL
1841 / 1700 MW
108%
North–South Transfer (B7)
7106 / 8800 MW
81%
Scotland Export Cap
3207 / 3950 MW
81%
Harker–Penrith–Barnby
3486 / 4800 MW
73%
South East Import (PR23)
3898 / 5900 MW
66%
Dresten–Hexham No.1
1771 / 6300 MW
28%
Eastern Export (B6)
671 / 4750 MW
14%
N. Kilmarnock–Gregorthie Moss
1147 / 10000 MW
11%
Candlerigg–Selex
313 / 3250 MW
10%
Candlerigg–Dunbar Export
293 / 4550 MW
6%
Eastern Export No.3
495 / 10000 MW
5%
Eastern Export No.4
265 / 10000 MW
3%
Ninewells–Selex
189 / 10000 MW
2%
Greater Manchester–Snowdon 5A
61 / 4300 MW
1%
Bolders–Selex No.1
20 / 10000 MW
0%
Dunbar–Selex
36 / 10000 MW
0%
Total constraint cost · last 7 days
£73.9m
Thermal + voltage + inertia + largest-loss · source: NESO
Daily total constraint cost (£) — last 30 days
£19.1m£9.5m07-1007-1407-1807-2207-2607-3008-0308-07
Daily cost breakdown (£) · most recent 7 days
DateThermalVoltageInertiaTotal
2026-08-08£16.1m£1.0m£485k£17.6m
2026-08-07£18.8m£338k£0£19.1m
2026-08-06£6.7m£347k£4k£7.1m
2026-08-05£9.9m£1.5m£308k£11.7m
2026-08-04£12.6m£198k£2k£12.8m
2026-08-03£1.7m£871k£0£2.6m
2026-08-02£1.4m£1.5m£54k£3.0m