Poland Negative Electricity Prices and Spikes, 2026
Day-ahead electricity prices in Poland were below zero for 294.25 hours (4.7% of hours) on 76 days in 2026 up to 2026-09-20 (20 September 2026). The lowest interval price was EUR -490.00/MWh on 2026-05-01 (1 May 2026) and the highest EUR 705.18/MWh on 2026-09-14 (14 September 2026). Prices are day-ahead, in EUR per MWh as published, and are not converted.
Key Facts
- Day-ahead electricity prices in Poland were below zero for 294.25 hours (4.7% of hours) on 76 days in 2026 up to 2026-09-20 (20 September 2026). The lowest interval price was EUR -490.00/MWh on 2026-05-01 (1 May 2026) and the highest EUR 705.18/MWh on 2026-09-14 (14 September 2026).
- The longest streak of consecutive days with a price below zero in Poland in 2026 was 9 days, from 2026-04-25 (25 April 2026) to 2026-05-03 (3 May 2026).
- In September 2026 up to 2026-09-20 (20 September 2026), Poland had 11.25 hours below zero on 4 days.
- Since 2025-08-17 (17 August 2025), the lowest price in Poland was EUR -490.00/MWh on 2026-05-01 (1 May 2026) and the highest EUR 705.18/MWh on 2026-09-14 (14 September 2026).
Hours Below Zero
Delivery days to 2026-09-20, local time| Period | Days with data | Hours below zero | Share of hours | Days below zero | Longest streak of days |
|---|---|---|---|---|---|
| September 2026 to date | 20 | 11.25 hours | 2.3% | 4 | 2 days (2026-09-05 to 2026-09-06) |
| 2026 to date | 263 | 294.25 hours | 4.7% | 76 | 9 days (2026-04-25 to 2026-05-03) |
| Since 2025-08-17 | 400 | 324 hours | 3.4% | 86 | 9 days (2026-04-25 to 2026-05-03) |
Hours are time weighted, so 15 minute and 60 minute intervals count alike. Share of hours divides by 24 times the days with data, so it is approximate on clock change days. A streak is consecutive local days each with at least one interval below zero, not a continuous run of hours.
Source: ENTSO-E Transparency Platform (transparency.entsoe.eu), CC BY 4.0. Aggregated and converted by World Power Monitor; ENTSO-E does not endorse this site. (ENTSO-E Terms of Use plus CC BY 4.0 for listed data items) Data as of 2026-09-20. Computed by World Power Monitor from the day-ahead price statistics of each local delivery day.
Lowest and Highest Prices
EUR/MWh, single market interval| Period | Lowest price | Delivery day | Highest price | Delivery day |
|---|---|---|---|---|
| September 2026 to date | EUR -31.83/MWh | 2026-09-05 (5 September 2026) | EUR 705.18/MWh | 2026-09-14 (14 September 2026) |
| 2026 to date | EUR -490.00/MWh | 2026-05-01 (1 May 2026) | EUR 705.18/MWh | 2026-09-14 (14 September 2026) |
| Since 2025-08-17 | EUR -490.00/MWh | 2026-05-01 (1 May 2026) | EUR 705.18/MWh | 2026-09-14 (14 September 2026) |
The lowest and highest prices are single market intervals of 15 or 60 minutes, not daily averages. The delivery day is the local day the interval belongs to.
Source: ENTSO-E Transparency Platform (transparency.entsoe.eu), CC BY 4.0. Aggregated and converted by World Power Monitor; ENTSO-E does not endorse this site. (ENTSO-E Terms of Use plus CC BY 4.0 for listed data items) Data as of 2026-09-20.
Longest Run Below Zero, Last 7 Days
Unbroken market intervalsIn the last 7 days of intervals held, the longest unbroken run of prices below zero in Poland lasted 3 hours, from 20 Sept 2026, 10:45 CEST (UTC+02:00) to 20 Sept 2026, 13:45 CEST (UTC+02:00), with a lowest price of EUR -1.16/MWh.
Source: ENTSO-E Transparency Platform (transparency.entsoe.eu), CC BY 4.0. Aggregated and converted by World Power Monitor; ENTSO-E does not endorse this site. (ENTSO-E Terms of Use plus CC BY 4.0 for listed data items) Data as of 2026-09-20T21:45:00Z.
Hours Below Zero Each Day
Local delivery days, 2025-08-17 to 2026-09-20| Delivery day (local) | Hours below zero |
|---|---|
| 2025-08-17 | 3 hours |
| 2025-08-18 | 0 hours |
| 2025-08-19 | 0 hours |
| 2025-08-20 | 0 hours |
| 2025-08-21 | 0 hours |
| 2025-08-22 | 1 hour |
| 2025-08-23 | 0 hours |
| 2025-08-24 | 7 hours |
| 2025-08-25 | 0 hours |
| 2025-08-26 | 0 hours |
| 2025-08-27 | 0 hours |
| 2025-08-28 | 0 hours |
| 2025-08-29 | 0 hours |
| 2025-08-30 | 0 hours |
| 2025-08-31 | 0 hours |
| 2025-09-01 | 0 hours |
| 2025-09-02 | 0 hours |
| 2025-09-03 | 0 hours |
| 2025-09-04 | 0 hours |
| 2025-09-05 | 0 hours |
| 2025-09-06 | 0 hours |
| 2025-09-07 | 0 hours |
| 2025-09-08 | 0 hours |
| 2025-09-09 | 0 hours |
| 2025-09-10 | 0 hours |
| 2025-09-11 | 0 hours |
| 2025-09-12 | 0 hours |
| 2025-09-13 | 0 hours |
| 2025-09-14 | 0 hours |
| 2025-09-15 | 0 hours |
| 2025-09-16 | 0 hours |
| 2025-09-17 | 0 hours |
| 2025-09-18 | 0 hours |
| 2025-09-19 | 0 hours |
| 2025-09-20 | 4 hours |
| 2025-09-21 | 6 hours |
| 2025-09-22 | 0 hours |
| 2025-09-23 | 0 hours |
| 2025-09-24 | 0 hours |
| 2025-09-25 | 3 hours |
| 2025-09-26 | 0 hours |
| 2025-09-27 | 0 hours |
| 2025-09-28 | 0 hours |
| 2025-09-29 | 0 hours |
| 2025-09-30 | 0 hours |
| 2025-10-01 | 0 hours |
| 2025-10-02 | 0 hours |
| 2025-10-03 | 0 hours |
| 2025-10-04 | 0.5 hours |
| 2025-10-05 | 4 hours |
| 2025-10-06 | 0 hours |
| 2025-10-07 | 0 hours |
| 2025-10-08 | 0 hours |
| 2025-10-09 | 0 hours |
| 2025-10-10 | 0 hours |
| 2025-10-11 | 0 hours |
| 2025-10-12 | 0 hours |
| 2025-10-13 | 0 hours |
| 2025-10-14 | 0 hours |
| 2025-10-15 | 0 hours |
| 2025-10-16 | 0 hours |
| 2025-10-17 | 0 hours |
| 2025-10-18 | 0 hours |
| 2025-10-19 | 0 hours |
| 2025-10-20 | 0 hours |
| 2025-10-21 | 0 hours |
| 2025-10-22 | 0 hours |
| 2025-10-23 | 0 hours |
| 2025-10-24 | 0 hours |
| 2025-10-25 | 0 hours |
| 2025-10-26 | 0 hours |
| 2025-10-27 | 0.25 hours |
| 2025-10-28 | 0 hours |
| 2025-10-29 | 0 hours |
| 2025-10-30 | 0 hours |
| 2025-10-31 | 0 hours |
| 2025-11-01 | 0 hours |
| 2025-11-02 | 0 hours |
| 2025-11-03 | 0 hours |
| 2025-11-04 | 0 hours |
| 2025-11-05 | 0 hours |
| 2025-11-06 | 0 hours |
| 2025-11-07 | 0 hours |
| 2025-11-08 | 0 hours |
| 2025-11-09 | 0 hours |
| 2025-11-10 | 0 hours |
| 2025-11-11 | 0 hours |
| 2025-11-12 | 0 hours |
| 2025-11-13 | 1 hour |
| 2025-11-14 | 0 hours |
| 2025-11-15 | 0 hours |
| 2025-11-16 | 0 hours |
| 2025-11-17 | 0 hours |
| 2025-11-18 | 0 hours |
| 2025-11-19 | 0 hours |
| 2025-11-20 | 0 hours |
| 2025-11-21 | 0 hours |
| 2025-11-22 | 0 hours |
| 2025-11-23 | 0 hours |
| 2025-11-24 | 0 hours |
| 2025-11-25 | 0 hours |
| 2025-11-26 | 0 hours |
| 2025-11-27 | 0 hours |
| 2025-11-28 | 0 hours |
| 2025-11-29 | 0 hours |
| 2025-11-30 | 0 hours |
| 2025-12-01 | 0 hours |
| 2025-12-02 | 0 hours |
| 2025-12-03 | 0 hours |
| 2025-12-04 | 0 hours |
| 2025-12-05 | 0 hours |
| 2025-12-06 | 0 hours |
| 2025-12-07 | 0 hours |
| 2025-12-08 | 0 hours |
| 2025-12-09 | 0 hours |
| 2025-12-10 | 0 hours |
| 2025-12-11 | 0 hours |
| 2025-12-12 | 0 hours |
| 2025-12-13 | 0 hours |
| 2025-12-14 | 0 hours |
| 2025-12-15 | 0 hours |
| 2025-12-16 | 0 hours |
| 2025-12-17 | 0 hours |
| 2025-12-18 | 0 hours |
| 2025-12-19 | 0 hours |
| 2025-12-20 | 0 hours |
| 2025-12-21 | 0 hours |
| 2025-12-22 | 0 hours |
| 2025-12-23 | 0 hours |
| 2025-12-24 | 0 hours |
| 2025-12-25 | 0 hours |
| 2025-12-26 | 0 hours |
| 2025-12-27 | 0 hours |
| 2025-12-28 | 0 hours |
| 2025-12-29 | 0 hours |
| 2025-12-30 | 0 hours |
| 2025-12-31 | 0 hours |
| 2026-01-01 | 6.5 hours |
| 2026-01-02 | 2.5 hours |
| 2026-01-03 | 0 hours |
| 2026-01-04 | 0 hours |
| 2026-01-05 | 0 hours |
| 2026-01-06 | 0 hours |
| 2026-01-07 | 0 hours |
| 2026-01-08 | 0 hours |
| 2026-01-09 | 0 hours |
| 2026-01-10 | 0 hours |
| 2026-01-11 | 0 hours |
| 2026-01-12 | 0 hours |
| 2026-01-13 | 0 hours |
| 2026-01-14 | 0 hours |
| 2026-01-15 | 0 hours |
| 2026-01-16 | 0 hours |
| 2026-01-17 | 0 hours |
| 2026-01-18 | 0 hours |
| 2026-01-19 | 0 hours |
| 2026-01-20 | 0 hours |
| 2026-01-21 | 0 hours |
| 2026-01-22 | 0 hours |
| 2026-01-23 | 0 hours |
| 2026-01-24 | 0 hours |
| 2026-01-25 | 0 hours |
| 2026-01-26 | 0 hours |
| 2026-01-27 | 0 hours |
| 2026-01-28 | 0 hours |
| 2026-01-29 | 0 hours |
| 2026-01-30 | 0 hours |
| 2026-01-31 | 0 hours |
| 2026-02-01 | 0 hours |
| 2026-02-02 | 0 hours |
| 2026-02-03 | 0 hours |
| 2026-02-04 | 0 hours |
| 2026-02-05 | 0 hours |
| 2026-02-06 | 0 hours |
| 2026-02-07 | 0 hours |
| 2026-02-08 | 0 hours |
| 2026-02-09 | 0 hours |
| 2026-02-10 | 0 hours |
| 2026-02-11 | 0 hours |
| 2026-02-12 | 0 hours |
| 2026-02-13 | 0 hours |
| 2026-02-14 | 0 hours |
| 2026-02-15 | 0 hours |
| 2026-02-16 | 0 hours |
| 2026-02-17 | 0 hours |
| 2026-02-18 | 0 hours |
| 2026-02-19 | 0 hours |
| 2026-02-20 | 0 hours |
| 2026-02-21 | 0 hours |
| 2026-02-22 | 0 hours |
| 2026-02-23 | 0 hours |
| 2026-02-24 | 0 hours |
| 2026-02-25 | 0 hours |
| 2026-02-26 | 0 hours |
| 2026-02-27 | 0 hours |
| 2026-02-28 | 3.5 hours |
| 2026-03-01 | 3.5 hours |
| 2026-03-02 | 0 hours |
| 2026-03-03 | 0 hours |
| 2026-03-04 | 0 hours |
| 2026-03-05 | 2.25 hours |
| 2026-03-06 | 2.5 hours |
| 2026-03-07 | 0 hours |
| 2026-03-08 | 3.5 hours |
| 2026-03-09 | 0 hours |
| 2026-03-10 | 1 hour |
| 2026-03-11 | 0 hours |
| 2026-03-12 | 0 hours |
| 2026-03-13 | 3.75 hours |
| 2026-03-14 | 4.5 hours |
| 2026-03-15 | 0 hours |
| 2026-03-16 | 0 hours |
| 2026-03-17 | 0 hours |
| 2026-03-18 | 4 hours |
| 2026-03-19 | 0.25 hours |
| 2026-03-20 | 0 hours |
| 2026-03-21 | 1.75 hours |
| 2026-03-22 | 5.25 hours |
| 2026-03-23 | 0 hours |
| 2026-03-24 | 1.25 hours |
| 2026-03-25 | 5.25 hours |
| 2026-03-26 | 0 hours |
| 2026-03-27 | 0 hours |
| 2026-03-28 | 0 hours |
| 2026-03-29 | 0 hours |
| 2026-03-30 | 0 hours |
| 2026-03-31 | 0 hours |
| 2026-04-01 | 0 hours |
| 2026-04-02 | 0 hours |
| 2026-04-03 | 0 hours |
| 2026-04-04 | 2.25 hours |
| 2026-04-05 | 11.25 hours |
| 2026-04-06 | 10.5 hours |
| 2026-04-07 | 5.5 hours |
| 2026-04-08 | 0 hours |
| 2026-04-09 | 3.75 hours |
| 2026-04-10 | 0 hours |
| 2026-04-11 | 0.75 hours |
| 2026-04-12 | 0.25 hours |
| 2026-04-13 | 0 hours |
| 2026-04-14 | 0 hours |
| 2026-04-15 | 0 hours |
| 2026-04-16 | 0 hours |
| 2026-04-17 | 2 hours |
| 2026-04-18 | 5.25 hours |
| 2026-04-19 | 0 hours |
| 2026-04-20 | 0 hours |
| 2026-04-21 | 3.5 hours |
| 2026-04-22 | 4.75 hours |
| 2026-04-23 | 6.5 hours |
| 2026-04-24 | 0 hours |
| 2026-04-25 | 8.75 hours |
| 2026-04-26 | 8.5 hours |
| 2026-04-27 | 3.5 hours |
| 2026-04-28 | 4.75 hours |
| 2026-04-29 | 1.25 hours |
| 2026-04-30 | 2.25 hours |
| 2026-05-01 | 6.75 hours |
| 2026-05-02 | 6.75 hours |
| 2026-05-03 | 7.75 hours |
| 2026-05-04 | 0 hours |
| 2026-05-05 | 0 hours |
| 2026-05-06 | 0 hours |
| 2026-05-07 | 0 hours |
| 2026-05-08 | 0 hours |
| 2026-05-09 | 0 hours |
| 2026-05-10 | 6 hours |
| 2026-05-11 | 0 hours |
| 2026-05-12 | 0 hours |
| 2026-05-13 | 0 hours |
| 2026-05-14 | 0 hours |
| 2026-05-15 | 0 hours |
| 2026-05-16 | 0 hours |
| 2026-05-17 | 0 hours |
| 2026-05-18 | 0 hours |
| 2026-05-19 | 0 hours |
| 2026-05-20 | 0 hours |
| 2026-05-21 | 0 hours |
| 2026-05-22 | 0 hours |
| 2026-05-23 | 1 hour |
| 2026-05-24 | 7.75 hours |
| 2026-05-25 | 3.5 hours |
| 2026-05-26 | 5 hours |
| 2026-05-27 | 4.75 hours |
| 2026-05-28 | 0.5 hours |
| 2026-05-29 | 1.5 hours |
| 2026-05-30 | 0.75 hours |
| 2026-05-31 | 2.75 hours |
| 2026-06-01 | 0 hours |
| 2026-06-02 | 0 hours |
| 2026-06-03 | 0 hours |
| 2026-06-04 | 4.25 hours |
| 2026-06-05 | 0 hours |
| 2026-06-06 | 2.75 hours |
| 2026-06-07 | 3.75 hours |
| 2026-06-08 | 0 hours |
| 2026-06-09 | 0 hours |
| 2026-06-10 | 0 hours |
| 2026-06-11 | 0 hours |
| 2026-06-12 | 0 hours |
| 2026-06-13 | 0.75 hours |
| 2026-06-14 | 8.75 hours |
| 2026-06-15 | 0 hours |
| 2026-06-16 | 0 hours |
| 2026-06-17 | 0 hours |
| 2026-06-18 | 0 hours |
| 2026-06-19 | 0 hours |
| 2026-06-20 | 3.25 hours |
| 2026-06-21 | 2.5 hours |
| 2026-06-22 | 0 hours |
| 2026-06-23 | 0 hours |
| 2026-06-24 | 0 hours |
| 2026-06-25 | 0 hours |
| 2026-06-26 | 0 hours |
| 2026-06-27 | 0 hours |
| 2026-06-28 | 2 hours |
| 2026-06-29 | 0 hours |
| 2026-06-30 | 0 hours |
| 2026-07-01 | 0 hours |
| 2026-07-02 | 4.75 hours |
| 2026-07-03 | 2.5 hours |
| 2026-07-04 | 6 hours |
| 2026-07-05 | 4.75 hours |
| 2026-07-06 | 0 hours |
| 2026-07-07 | 0 hours |
| 2026-07-08 | 3 hours |
| 2026-07-09 | 0 hours |
| 2026-07-10 | 0 hours |
| 2026-07-11 | 0.75 hours |
| 2026-07-12 | 0 hours |
| 2026-07-13 | 0 hours |
| 2026-07-14 | 0 hours |
| 2026-07-15 | 0 hours |
| 2026-07-16 | 0 hours |
| 2026-07-17 | 0 hours |
| 2026-07-18 | 0 hours |
| 2026-07-19 | 0 hours |
| 2026-07-20 | 0 hours |
| 2026-07-21 | 0 hours |
| 2026-07-22 | 0 hours |
| 2026-07-23 | 0 hours |
| 2026-07-24 | 0 hours |
| 2026-07-25 | 4 hours |
| 2026-07-26 | 5.5 hours |
| 2026-07-27 | 0 hours |
| 2026-07-28 | 2 hours |
| 2026-07-29 | 0 hours |
| 2026-07-30 | 0 hours |
| 2026-07-31 | 0 hours |
| 2026-08-01 | 0 hours |
| 2026-08-02 | 0.25 hours |
| 2026-08-03 | 0 hours |
| 2026-08-04 | 0 hours |
| 2026-08-05 | 0 hours |
| 2026-08-06 | 0 hours |
| 2026-08-07 | 0 hours |
| 2026-08-08 | 0 hours |
| 2026-08-09 | 5 hours |
| 2026-08-10 | 0 hours |
| 2026-08-11 | 5.5 hours |
| 2026-08-12 | 0 hours |
| 2026-08-13 | 0 hours |
| 2026-08-14 | 0 hours |
| 2026-08-15 | 1 hour |
| 2026-08-16 | 0 hours |
| 2026-08-17 | 0 hours |
| 2026-08-18 | 0 hours |
| 2026-08-19 | 0 hours |
| 2026-08-20 | 0 hours |
| 2026-08-21 | 0 hours |
| 2026-08-22 | 1.5 hours |
| 2026-08-23 | 7.75 hours |
| 2026-08-24 | 0 hours |
| 2026-08-25 | 0 hours |
| 2026-08-26 | 0 hours |
| 2026-08-27 | 4 hours |
| 2026-08-28 | 0 hours |
| 2026-08-29 | 0 hours |
| 2026-08-30 | 5.5 hours |
| 2026-08-31 | 0 hours |
| 2026-09-01 | 0 hours |
| 2026-09-02 | 0 hours |
| 2026-09-03 | 0 hours |
| 2026-09-04 | 0 hours |
| 2026-09-05 | 2.5 hours |
| 2026-09-06 | 4 hours |
| 2026-09-07 | 0 hours |
| 2026-09-08 | 0 hours |
| 2026-09-09 | 0 hours |
| 2026-09-10 | 0 hours |
| 2026-09-11 | 0 hours |
| 2026-09-12 | 0 hours |
| 2026-09-13 | 0 hours |
| 2026-09-14 | 0 hours |
| 2026-09-15 | 0 hours |
| 2026-09-16 | 0 hours |
| 2026-09-17 | 0 hours |
| 2026-09-18 | 0 hours |
| 2026-09-19 | 1.75 hours |
| 2026-09-20 | 3 hours |
Source: ENTSO-E Transparency Platform (transparency.entsoe.eu), CC BY 4.0. Aggregated and converted by World Power Monitor; ENTSO-E does not endorse this site. (ENTSO-E Terms of Use plus CC BY 4.0 for listed data items) Data as of 2026-09-20.
Month by Month
First and latest months may be partial| Month | Days with data | Hours below zero | Days below zero | Lowest price | Highest price |
|---|---|---|---|---|---|
| August 2025 | 15 | 11 hours | 3 | EUR -7.45/MWh | EUR 242.75/MWh |
| September 2025 | 30 | 13 hours | 3 | EUR -58.57/MWh | EUR 446.80/MWh |
| October 2025 | 31 | 4.75 hours | 3 | EUR -2.40/MWh | EUR 509.88/MWh |
| November 2025 | 30 | 1 hour | 1 | EUR -1.35/MWh | EUR 472.34/MWh |
| December 2025 | 31 | 0 hours | 0 | EUR 32.59/MWh | EUR 429.30/MWh |
| January 2026 | 31 | 9 hours | 2 | EUR -8.31/MWh | EUR 574.42/MWh |
| February 2026 | 28 | 3.5 hours | 1 | EUR -0.51/MWh | EUR 261.84/MWh |
| March 2026 | 31 | 38.75 hours | 13 | EUR -73.78/MWh | EUR 391.57/MWh |
| April 2026 | 30 | 85.25 hours | 18 | EUR -439.22/MWh | EUR 305.63/MWh |
| May 2026 | 31 | 54.75 hours | 13 | EUR -490.00/MWh | EUR 429.03/MWh |
| June 2026 | 30 | 28 hours | 8 | EUR -26.70/MWh | EUR 703.99/MWh |
| July 2026 | 31 | 33.25 hours | 9 | EUR -110.04/MWh | EUR 360.99/MWh |
| August 2026 | 31 | 30.5 hours | 8 | EUR -119.71/MWh | EUR 560.30/MWh |
| September 2026 | 20 | 11.25 hours | 4 | EUR -31.83/MWh | EUR 705.18/MWh |
Prices are day-ahead, in EUR per MWh. A negative price means sellers pay to deliver electricity in that interval, usually when wind and solar output is high and demand is low; the explanation and the ranking of all zones are on the main page.
Source: ENTSO-E Transparency Platform (transparency.entsoe.eu), CC BY 4.0. Aggregated and converted by World Power Monitor; ENTSO-E does not endorse this site. (ENTSO-E Terms of Use plus CC BY 4.0 for listed data items) Data as of 2026-09-20.