Energy
ewz has its own power plants in Switzerland and Europe as well as investments in power plants for the production of green electricity from water, wind and solar power. The ‘energy supply’ component of the tariff, i.e. pure electricity, is therefore calculated on the basis of what are known as generation costs. These will increase by 4.3% in 2025 compared to 2024. The reason for this is to offset the costs actually incurred over the last three years against the planned costs originally assumed. For the standard product ewz.natur, the surcharge is 3.4% for the peak tariff and 6.8% for the off-peak tariff.
Grid usage
ewz’s grid costs in 2025 will fall by 10.8% compared to 2024. The reason for this is lower costs for the upstream Swissgrid, including the electricity reserve. At ewz itself, costs will rise slightly, due to higher material prices. In the ewz area, the most common grid usage tariff is NNA, while commercial customers usually pay the NNB grid usage tariff. The components of these two tariffs will change as follows:
Municipal and national levies
The municipal and national levies will remain unchanged in 2025 compared to 2024 as the cost base will remain constant.
Further information
Further information and details can be found in the file ‘Overview of tariffs 2025’.
from 1 January 2025
Peak tariff: Monday to Saturday, 6 am to 10 pm
Off-peak tariff: all other times
ewz.pronatur with grid usage tariff NNA
ewz.natur with grid usage tariff NNA
ewz.econatur with grid usage tariff NNA
Further information
Our electricity tariffs for electromobility, our solar tariffs and further information and details can be found in the file ‘Overview of tariffs 2024’.
Energy
The energy price component covers the cost of producing and procuring energy. If available, the environmental value added cost is also included.
Grid usage
The grid usage price component covers the cost of constructing, operating and maintaining the ewz distribution grid, the transmission grid costs charged by Swissgrid AG as well as the system services and federal energy reserve.
Municipal levies: Services to the city of Zurich
ewz provides the following public services to the city and charges for this:
- Public services in the context of climate and energy policy objectives
- Construction, maintenance and operation of public lighting and public clocks
National levies: Grid surcharge
As part of the national levies, the grid surcharge pursuant to Art. 35 of the Energy Act is levied for the promotion of renewable energies, support of large-scale hydroelectric power and the environmental renovation of hydroelectric power.
Reactive energy
Reactive energy is billed on reactive energy consumption during the peak tariff time that exceeds 48 kVarh reactive energy (average power factor cos φ = 0.9) per 100 kWh of active energy.
Minimum charge
If the total of all charges for grid usage within a meter reading period is less than the minimum charge, then the minimum charge will be applied. The minimum charge is CHF 4.00 per month (CHF 4.31 per month incl. VAT).
