Slovenia electricity prices in September 2025

Every day of September 2025 in Slovenia: the average, lowest and highest wholesale price, negative-price hours, and how the month compares with the one before and with last year.

In September 2025, the wholesale market price in Slovenia averaged €0.095 per kWh. The cheapest day was 21 September 2025 (€0.031), the most expensive 30 September 2025 (€0.150); the price was below zero for 23 hours.

Daily wholesale market prices in Slovenia, September 2025 (€/kWh)
DateAverageLowHigh
1 September 20250.1000.0230.215
2 September 20250.1110.0650.274
3 September 20250.0850.0060.170
4 September 20250.0990.0030.300
5 September 20250.1040.0760.155
6 September 20250.078−0.0010.154
7 September 20250.047−0.0530.144
8 September 20250.1250.0630.400
9 September 20250.1410.0860.383
10 September 20250.1200.0820.251
11 September 20250.1050.0670.183
12 September 20250.1000.0460.253
13 September 20250.0730.0000.129
14 September 20250.066−0.0000.134
15 September 20250.0750.0060.168
16 September 20250.1080.0570.185
17 September 20250.0810.0090.185
18 September 20250.0780.0000.214
19 September 20250.0980.0000.395
20 September 20250.063−0.0090.144
21 September 20250.031−0.0150.113
22 September 20250.0920.0490.211
23 September 20250.1110.0760.254
24 September 20250.1030.0700.169
25 September 20250.0990.0640.136
26 September 20250.1020.0730.132
27 September 20250.0940.0380.141
28 September 20250.0870.0090.137
29 September 20250.1310.0810.381
30 September 20250.1500.0940.358

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