State of European Power · April 2025

State of European Power — April 2025

Published 2025-05-02 · every figure recomputed live from the Voltcast production database (last: 2026-07-13T23:54Z) · reproduce any number via the API

1,819

negative price-hours across 43 zones in April 2025

70.11

average day-ahead price, €/MWh, across covered zones

28

zones that cleared below zero at least once

April 2025 closed with 1,819 negative price-hours across the 43 European bidding zones with full coverage this month — 28 of them cleared below zero at least once. Negative prices are no longer an anomaly; they are a structural feature of a grid where solar and wind routinely outrun demand.

The cheapest market of the month was NO4 (average 1.95 €/MWh); the priciest was IE-SEM (111.17 €/MWh) — a 109 €/MWh gap between two markets inside one coupled European system, which is the whole story of constrained interconnection in one number.

ES logged the most negative hours (117), and the widest intra-month price range belonged to LT: from -18.22 to 600 €/MWh (618.22 €/MWh of spread — the raw material for every battery business case). The single deepest print of the month was -499.99 €/MWh in DE-LU on 2025-04-04.

Every zone, one table

ZoneAvg €/MWhMinMaxNegative hours
AT 81.27 -105.1 202.31 62
BE 73.36 -266 185.14 80
BG 84.94 -100.46 308 46
CH 84.73 -94.65 184.03 63
CZ 79.64 -123 259.37 72
DE-LU 77.5 -113.68 223.97 72
DK1 75.15 -30.1 263.2 74
DK2 75.8 -19.62 265.11 58
EE 72.91 -17.52 600 35
ES 26.65 -6.01 170.01 117
FI 47.82 -6.01 382.06 69
FR 42.05 -115.46 159.86 90
GR 89.03 -0.01 308 5
HR 84.78 -100.48 245.28 68
HU 85.46 -124.63 290.07 70
IE-SEM 111.17 0 300 0
IT-CALA 99.17 2.9 181 0
IT-CNOR 100.36 4 181 0
IT-CSUD 99.76 4 181 0
IT-NORD 100.27 4 181 0
IT-SARD 92.58 0 181 0
IT-SICI 99.16 2.9 181 0
IT-SUD 99.17 2.9 181 0
LT 74.23 -18.22 600 43
LV 77.02 -17.52 600 32
ME 90.75 0 193.24 0
MK 88.18 0.1 251.06 0
NL 74.83 -189.9 253.35 84
NO1 50.94 1.21 253.23 0
NO2 55.41 -9.98 254.87 3
NO3 14.06 0 85.91 0
NO4 1.95 0 17.02 0
NO5 37.85 1.39 128.52 0
PL 85.96 -124.58 275.17 75
PT 25.75 -5 170.01 104
RO 86.43 -100.46 308 53
RS 86.57 0 249.91 0
SE1 13.08 -14 275.19 106
SE2 12.9 -13.95 269.26 101
SE3 34.28 -17.24 267.17 48
SE4 53.26 -19.17 265.42 55
SI 84.03 -104.76 245.55 71
SK 84.37 -120.48 258.8 63

Method & citation. Hourly means over all published day-ahead auction results per zone (native 15-minute periods averaged per hour); zones with under 20 reported days excluded. Sources: ENTSO-E Transparency Platform, SMARD (CC BY 4.0). Reproduce via GET /api/v1/prices/{zone}. Cite as "Voltcast Research, voltcast.com/research/state-of-european-power-2025-04".