State of European Power · June 2025

State of European Power — June 2025

Published 2025-07-02 · every figure recomputed live from the Voltcast production database (last: 2026-08-24T12:55Z) · reproduce any number via the API

2,272

negative price-hours across 48 zones in June 2025

209.59

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

33

zones that cleared below zero at least once

June 2025 closed with 2,272 negative price-hours across the 48 European bidding zones with full coverage this month — 33 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 SE1 (average 2.78 €/MWh); the priciest was UA (4664.05 €/MWh) — a 4661 €/MWh gap between two markets inside one coupled European system, which is the whole story of constrained interconnection in one number.

FR logged the most negative hours (130), and the widest intra-month price range belonged to UA: from 11 to 9000 €/MWh (8989 €/MWh of spread — the raw material for every battery business case). The single deepest print of the month was -249.00 €/MWh in AT on 2025-06-21.

Every zone, one table

ZoneAvg €/MWhMinMaxNegative hours
AL 110.59 0.9 400 0
AT 66.64 -97.08 237.46 99
BE 65.36 -67.12 289.45 127
BG 85.31 -39.63 408.74 28
CH 63.17 -105.39 176.92 77
CZ 77.1 -91.87 283.1 69
DE-LU 64.12 -96.02 260.68 129
DK1 58.82 -26.31 288.97 116
DK2 56.49 -25.35 288.97 66
EE 41.14 -21.71 299.9 70
ES 72.81 -6.01 210 55
FI 18.58 -21.39 299.9 126
FR 40.9 -78.05 185 130
GB 67.51 -55.87 206.91 59
GR 85.46 0 339.78 0
HR 86.05 -76.12 450.08 48
HU 84.13 -89.39 392.17 53
IE-SEM 95.24 -5.17 224 4
IT-CALA 113.94 1 237.36 0
IT-CNOR 111.63 8.65 237.36 0
IT-CSUD 114.27 8.65 237.36 0
IT-NORD 110.27 8.65 185 0
IT-SARD 113.34 5 237.36 0
IT-SICI 114.37 1 237.36 0
IT-SUD 113.94 1 237.36 0
LT 42.96 -23.58 258 63
LV 42.96 -23.58 258 63
ME 102.82 0 311 0
MK 82.02 0.1 353.29 0
NL 67.7 -52.99 289.45 127
NO1 46.23 -8.08 103.52 21
NO2 55.29 -10 121.99 16
NO3 11.07 -10.07 71.08 33
NO4 3.66 -24.06 55.24 60
NO5 36.15 -7.54 55.12 9
PL 81.52 -132.95 427.76 72
PT 74.38 -1.21 210 10
RO 86.17 -39.63 408.74 36
RS 85.77 0 371.06 0
SE1 2.78 -20.91 40.23 103
SE2 4.55 -25.22 109.01 114
SE3 20.75 -25.05 108.55 89
SE4 37.04 -25.3 211.76 89
SI 87.52 -78.05 486.07 51
SK 78.96 -88.42 371.23 60
TR 2204.03 0 3400 0
UA 4664.05 11 9000 0
XK 110.59 0.9 400 0

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-2025-06".

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