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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
sun
Roof-PV ramp up until 2035
Roof-PV ramp-up and hydro additions lower imports until 2035
energy_export
Imports decrease, then increase
After 2035 imports rise as build-out slows and nuclear plants are decommissioned
water
7.5% increase in hydro
Hydro production is increased by 7.5% until 2050
nuclear
Decomissioning end 2043
Nuclear plants run 60 years, decomissioning of Leibstadt in 2043
Energy Mix
Production
Demand
Production
2024
Total generation 71 TWh
2050
Total generation 83 TWh
Demand
2024
Total demand 62 TWh
2050
Total demand 80 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
          Storage reserve used
          PV
          Wind
          Hydro
          Biomass
          Gas
          Geothermal
          Nuclear
          Fossil
          Challenges
          tactic
          High Import Dependency post 2045
          Rising import needs after nuclear decomissioning require neighbor surplus and EU agreement
          sun
          Build-out speed solar
          Build-out speed of solar until 2035 is more than double the pace of record year 2023. Hard to achieve
          energy_export
          High summer surplus in 2030s
          Summer surplus rises from 9 to 23 TWh in 2035. Unclear how much of it can be exported.
          money
          Additional costs possible
          If summer surplus cannot be exported, related revenues will be lost and overall energy bill for Switzerland will rise
          About the scenario developer
          Energy Law ("Mantelerlass")
          Energy Law ("Mantelerlass")
          The Mantelerlass is Switzerland’s overarching energy law, which sets the framework for the country’s energy policy. It aims to promote energy efficiency, expand renewable energy, and reduce greenhouse gas emissions while ensuring a reliable energy supply.
          Explore other scenarios
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          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
          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
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