GB Day-Ahead Prices
EPEX & N2EX · 5-day history + live system price
EPEX
N2EX
System Price
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Intermittent Market Reference Price
GB CfD settlement reference — volume-weighted N2EX (NordPool) & EPEX day-ahead prices
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IMRP = Σ(pricei × volumei) / Σ(volumei) across EPEX Spot and N2EX per hourly settlement period.
Used by LCCC/EMRS to calculate CfD top-up payments. When IMRP > strike price, generators repay the difference.
Zero-floor: IMRP < £0/MWh for ≥6 consecutive hours → CfD payment is £0 (not negative).
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Daily average IMRP vs CfD strike prices — £/MWh
Hourly IMRP breakdown — EPEX vs N2EX
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IMRP
N2EX
EPEX
Negative IMRP hours per day
Negative hours
Zero-floor ≥6h
Daily IMRP — last 21 days
| Date | IMRP avg £ | Peak £ | Trough £ | Neg hours | Zero-floor | Source |
|---|---|---|---|---|---|---|
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