Basel September electricity use stays near historic low.
October 6, 2026In September 2026, Basel consumed 98.4 GWh of electricity, about 10 percent below the historical September average and near the 2025 low, continuing a gradual downward trend. Daily consumption was stable, ranging narrowly between 2.8 and 3.7 GWh with no anomalies.
In September 2026, the Canton of Basel consumed a total of 98.4 GWh of electricity, with an average daily consumption of 3.3 GWh. The highest daily consumption was 3.7 GWh on Tuesday, September 8, while the lowest was 2.8 GWh on Sunday, September 27. Daily consumption remained relatively stable throughout the month, ranging within a narrow band of 0.9 GWh, with no extreme spikes or prolonged declines.
Historically, the average September consumption since 2012 has been 109.4 GWh. The highest monthly total was 127.6 GWh in 2012, and the lowest was 97.7 GWh in 2025. For individual days across the entire historical record, the maximum daily consumption was 5.2 GWh on Tuesday, August 21, 2012, and the minimum was 1.7 GWh on Sunday, August 23, 2026.
Compared to the historical average of 109.4 GWh, September 2026 was notably low, falling about 10 percent below the long-term mean and close to the recent low of 97.7 GWh set in 2025. The daily pattern was stable and unremarkable, with the difference between the highest and lowest days being only 0.9 GWh. No anomalies were observed; the month continued a gradual downward trend in September consumption seen over the past several years.
Table 1: Consumption of Electricity in September in GWh
| Year | Total Month | Max Daily | Avg Daily | Avg Weekday | Avg Weekend |
|---|---|---|---|---|---|
| 2026 | 98.4 | 3.7 | 3.3 | 3.4 | 2.9 |
| 2025 | 97.7 | 3.54 | 3.3 | 3.4 | 2.9 |
| 2024 | 99.4 | 3.76 | 3.3 | 3.5 | 2.9 |
| 2023 | 100.8 | 3.73 | 3.4 | 3.5 | 3.0 |
| 2022 | 100.8 | 3.73 | 3.4 | 3.5 | 2.9 |
| 2021 | 105.5 | 3.87 | 3.5 | 3.7 | 3.1 |
| 2020 | 106.2 | 3.89 | 3.5 | 3.7 | 3.1 |
| 2019 | 105.5 | 3.84 | 3.5 | 3.7 | 3.1 |
| 2018 | 108.3 | 4.02 | 3.6 | 3.9 | 3.1 |
| 2017 | 111.0 | 4.04 | 3.7 | 3.9 | 3.2 |
| 2016 | 119.8 | 4.45 | 4.0 | 4.2 | 3.4 |
| 2015 | 118.0 | 4.47 | 3.9 | 4.1 | 3.4 |
| 2014 | 119.8 | 4.4 | 4.0 | 4.2 | 3.4 |
| 2013 | 122.3 | 4.49 | 4.1 | 4.3 | 3.5 |
| 2012 | 127.6 | 4.74 | 4.3 | 4.6 | 3.6 |
Figure 1: Daily September 2026 Electricity Consumption in GWh Compared with Historic Daily Average since 2012
Figure 2: Monthly Electricity Consumption in September
🤖 This text was generated with the assistance of AI. All quantitative statements are derived directly from the dataset listed under Data Source.