State of European Power · September 2018

State of European Power — September 2018

Published 2018-10-02 · every figure recomputed live from the Voltcast production database (last: 2026-07-13T23:51Z) · reproduce any number via the API

7

negative price-hours across 35 zones in September 2018

60.15

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

2

zones that cleared below zero at least once

September 2018 closed with 7 negative price-hours across the 35 European bidding zones with full coverage this month — 2 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 NO5 (average 46.25 €/MWh); the priciest was IT-SICI (80.73 €/MWh) — a 34 €/MWh gap between two markets inside one coupled European system, which is the whole story of constrained interconnection in one number.

AT logged the most negative hours (4), and the widest intra-month price range belonged to BE: from 28.58 to 411 €/MWh (382.42 €/MWh of spread — the raw material for every battery business case). The single deepest print of the month was -30.50 €/MWh in AT on 2018-09-24.

Every zone, one table

ZoneAvg €/MWhMinMaxNegative hours
AT 55.53 -10.43 87.99 4
BE 68.72 28.58 411 0
CH 61.53 32.27 87.52 0
CZ 55.85 2.15 89.81 0
DK1 49.87 -6.79 91.31 3
DK2 51.77 2.33 91.31 0
EE 50.89 2.33 74.95 0
ES 71.25 47.9 81.82 0
FI 50.96 2.33 74.95 0
FR 61.95 27.55 89.01 0
GR 67.06 0 76.54 0
HR 64.16 24.98 138.18 0
HU 62.9 2.15 117.2 0
IT-CNOR 76.98 54.11 138.18 0
IT-CSUD 75.57 54.11 138.18 0
IT-NORD 76.51 54.11 138.18 0
IT-SARD 75.5 52.7 138.18 0
IT-SICI 80.73 0 138.18 0
IT-SUD 70.67 5 138.18 0
LT 59.07 2.4 135.99 0
LV 58.95 2.4 133.23 0
NL 63.32 28.81 114.81 0
NO1 46.37 2.33 61.65 0
NO2 46.36 2.33 61.65 0
NO3 48.72 2.33 73.54 0
NO4 48.04 2.33 73.14 0
NO5 46.25 2.33 61.65 0
PT 71.28 50.42 81.82 0
RS 63.64 15.36 108.92 0
SE1 49.47 2.33 73.96 0
SE2 49.47 2.33 73.96 0
SE3 49.6 2.33 74.95 0
SE4 50.39 2.33 89.12 0
SI 64.13 24.98 138.18 0
SK 61.8 2.15 111 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-2018-09".