In accordance with the Electricity Supply Ordinance (Appendix 1, point 2.4), the calculatory interest rate for capital invested in the electricity network (weighted average cost of capital) is specified by DETEC each year on the basis of calculations carried out by the SFOE upon consultation with the Federal Electricity Commission (ElCom). The calculations are to be carried out at the end of March each year.
The specified WACC for 2025 is 3.98%.