# Swiss electricity reference for number comparisons

The reference uses the five complete calendar years 2021–2025 from BFE's Swiss overall energy statistics 2025 workbook, table T25. Cells A67:A71 identify the years; H67:H71 give final electricity consumption in GWh. Each total also equals column F (national consumption) minus column G (network losses). The original workbook and its SHA-256 remain in the source catalogue.

Mean annual use = sum of the five annual GWh totals / 5 / 1,000, in TWh/year. Mean daily use = sum of annual GWh / actual calendar days. Average power = sum of annual GWh / actual calendar hours. The period includes leap year 2024: 1,826 days and 43,824 hours. Use unrounded values for comparisons and round only the displayed result.

An electricity amount in TWh is multiplied by 1,000 to obtain GWh. Divide it by mean daily consumption to obtain equivalent average Swiss days. Divide by the mean annual total to obtain its share of an average year's use. A power in MW is divided by 1,000 to obtain GW; its ratio to average Swiss power is a scale comparison. For signed changes, comparisons use the magnitude and retain the sign of the original figure. Energy reported per year or per winter retains that original period; the comparison does not turn it into an observed annual total.

The two comparison bars share a scale extending to the larger value. Values above the reference are neither clipped nor presented as capped percentages. The reference bar uses an average Swiss day for energy amounts below 1 TWh, and an average Swiss year for larger amounts. Power uses average Swiss demand. This display choice changes only the visual reference, never the result.

The baseline is final electricity use. It excludes transmission/distribution losses and pumped-storage charging. It averages all seasons and hours; it is not a winter peak or an instantaneous observation. A generation or storage amount on another boundary is only compared for magnitude: timing, availability, losses and usable output determine service. Solar peak capacity is explicitly distinguished from continuous output. Heat, cost rates, percentages and capacity additions per year are excluded from automatic electricity comparisons. No city-equivalent demand is assumed.

The website reads one shared reference and its underlying numeric values. Updating the reviewed reference updates the sidebar and all number comparisons together. Original claim values, status, periods and evidence links remain available beside the comparison. The archived source and earlier catalogue editions remain unchanged.