Show in expert mode
Solar expansion, moderate growth in other renewables, and hydrogen to absorb a larger share of the summer surplus
sun
Replace nuclear with solar
Rooftop Solar expansion and increasing imports compensate relatively early nuclear shutdown
nuclear
Early shutdown nuclear
Nuclear lifetime is limited to 50 years per plant (55 for Beznau)
energy_export
Import dependency
High import dependency with up to 10 TWh of necessary winter imports
valve
Gas-to-Power as Backup
Gas-to-Power used as winter-backup during transition phase
Energy Mix
Production
Demand
Production
2025
Total generation 67 TWh
2050
Total generation 95 TWh
Demand
2025
Total demand 66 TWh
2050
Total demand 89 TWh

Pros and Cons
Pros:
    Cons:
      The assumed electricity production and demand in 2050

      Pros:
        Cons:
          Transition
          The energy mix as we transition to 2050
          Demand
          Import
          Import limit exceeded
          PV
          Wind
          Hydro
          Biomass
          Gas
          Geothermal
          Nuclear
          Fossil
          2025 Winter
          TWh
          Demand
          36.9
          Deficit
          --
          Import
          6.8
          Import limit exceeded
          1.8
          Storage reserve used
          --
          PV
          1.9
          PV Roof
          1.9
          PV Alpine
          0
          PV Ground
          0
          Wind
          0.3
          Hydro
          14.8
          Run-of-River
          6.3
          Storage
          8.5
          Biomass
          1.1
          Biomass
          1.1
          CCS Biomass
          0
          Gas
          0.5
          Market-Gas
          0.5
          Reserve gas power plants
          0
          Geothermal
          --
          Nuclear
          10.7
          Nuclear
          10.7
          New nuclear
          0
          Fossil
          0.8
          Existing fossil fuel power plants
          0.8
          CCS Fossil Fuels
          0
          Hard coal
          0
          Challenges
          warning
          Import limits exceeded
          The energy law limits our imports to 5 TWh. This will be exceeded in 2020 - 2050.
          tactic
          High Import Dependency
          Rising Import needs after early nuclear decomissioning require neighbor surplus and EU agreement
          valve
          Early need for gas plants
          (Transitory) Gas plants needed early, in line with nuclear decomissioning
          money
          increased price dependency
          Higher import needs result in higher impact of international prices
          About the scenario developer
          Swissolar
          Swissolar
          Swissolar is the Swiss solar industry association, representing companies involved in solar power and advocating for the expansion of solar energy. The organization promotes policies and innovations that support the broader adoption of solar technology across the country.
          Want to know more about this scenario?
          Explore detailed energy data, customize generation parameters, and create your own energy scenario with the expert mode
          Show in expert mode
          Explore other scenarios
          Show all
          Axpo Renewables A balanced build-out of renewables, focusing on solar and wind. Green gas as winter-backup

          Legend

          A projection of the energy mix, demand and production for the year 2050 for the given scenario.
          HydroPVNuclearWindGasBiomassFossilGeothermal Other
          D : Demand • P : Production • Δ : Production Surplus
          Axpo Landscape Ambitious nuclear and rooftop solar expansion to avoid landscape-impacting wind and alpine solar units

          Legend

          A projection of the energy mix, demand and production for the year 2050 for the given scenario.
          HydroPVNuclearWindGasBiomassFossilGeothermal Other
          D : Demand • P : Production • Δ : Production Surplus
          Energy Law ("Mantelerlass") Targets of 35 TWh of renewable energy by 2035 and 45 TWh by 2050, plus 6 TWh of renewable winter electricity, of which 2 TWh hydropower

          Legend

          A projection of the energy mix, demand and production for the year 2050 for the given scenario.
          HydroPVNuclearWindGasBiomassFossilGeothermal Other
          D : Demand • P : Production • Δ : Production Surplus
          Business as usual Without increased investments, winter imports will rise to unsustainable levels, making blackouts likely after the nuclear shutdown

          Legend

          A projection of the energy mix, demand and production for the year 2050 for the given scenario.
          HydroPVNuclearWindGasBiomassFossilGeothermal Other
          D : Demand • P : Production • Δ : Production Surplus
          We want your feedback!
          We’re excited to be taking Power Switcher in a new direction and would love your feedback! Let us know what’s working and where we can improve, every suggestion helps us make the tool better for you.
          Share feedback
          Got questions about the Power Switcher or the Scenarios?
          Contact us on [email protected]
          Methodology reviewed by ETH Zürich