State of European Power · July 2025

State of European Power — July 2025

Published 2025-08-02 · every figure recomputed live from the Voltcast production database (last: 2026-08-23T22:53Z) · reproduce any number via the API

253

negative price-hours across 48 zones in July 2025

245.63

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

31

zones that cleared below zero at least once

July 2025 closed with 253 negative price-hours across the 48 European bidding zones with full coverage this month — 31 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 2.55 €/MWh); the priciest was UA (5184.86 €/MWh) — a 5182 €/MWh gap between two markets inside one coupled European system, which is the whole story of constrained interconnection in one number.

NO5 logged the most negative hours (25), and the widest intra-month price range belonged to UA: from 100 to 9000 €/MWh (8900 €/MWh of spread — the raw material for every battery business case). The single deepest print of the month was -191.70 €/MWh in AT on 2025-07-05.

Every zone, one table

ZoneAvg €/MWhMinMaxNegative hours
AL 127.71 11 600 0
AT 87.97 -7.67 380.43 8
BE 83.06 -11.97 517.57 11
BG 101.12 -0.01 410.5 1
CH 91.12 -5.24 215.05 7
CZ 90.31 -2.48 465.66 6
DE-LU 87.6 -3.43 419.17 8
DK1 82.8 -2 476.19 12
DK2 79.96 -1.74 476.19 4
EE 36.98 -1.71 198.52 18
ES 69.94 -1.01 175.49 13
FI 24.18 -1.71 139.31 18
FR 57.96 -0.11 235 7
GB 79.44 -23.75 228.34 12
GR 100.56 0 410.5 0
HR 103.03 -1.09 472.6 5
HU 102.55 -3.08 462.05 5
IE-SEM 99.61 10.87 191.7 0
IT-CALA 112.41 0 225 0
IT-CNOR 114.46 23 235 0
IT-CSUD 114.55 23 235 0
IT-NORD 112.63 23 235 0
IT-SARD 106.53 0 235 0
IT-SICI 114.29 0 225 0
IT-SUD 112.54 0 235 0
LT 46.41 -0.65 198.52 3
LV 46.24 -0.65 198.52 3
ME 119.42 13.65 319.74 0
MK 103.14 0.12 406.95 0
NL 87.53 -2 517.57 12
NO1 41.9 -2.28 74.79 3
NO2 69.7 0.37 104.43 0
NO3 6 -2.54 24.98 7
NO4 2.55 -0.03 10.49 1
NO5 15.15 -21.66 33.03 25
PL 102.43 -2.16 471.29 5
PT 70.03 -1.01 175.49 13
RO 103.49 -0.01 419.08 2
RS 102.06 0 406.58 0
SE1 12.15 -2.13 52.1 12
SE2 14.26 -1.81 53.05 13
SE3 33.1 -1.24 137.4 4
SE4 41.47 -1.58 150.47 6
SI 103.76 -1.27 551.49 4
SK 98.08 -2.53 463.96 5
TR 2965.63 151.01 3400 0
UA 5184.86 100 9000 0
XK 127.4 11 600 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-2025-07".

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