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Moderate build-out of renewables, gas power plants replace nuclear for winter generation
valve
Gas power plants in winter
Gas power plants replace nuclear power
renew
Gas power plants in winter
Well expansion of biomass - threefold increase of capacity
power_coord
Moderate increase of demand
Demand increases moderately, due to heat pumps and electromobility
sun
Moderate increase of demand
The PV feed-in is lower at 18 TWh in 2050 compared to other scenarios
Energy Mix
Production
Demand
Production
2024
Total generation 70 TWh
2050
Total generation 78 TWh
Demand
2024
Total demand 61 TWh
2050
Total demand 77 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
          PV
          Wind
          Hydro
          Biomass
          Gas
          Geothermal
          Nuclear
          Fossil
          Challenges
          renew
          High imports need to be possible
          Necessary imports of over 10 TWh are only feasible if grid capacities and generation in neighboring countries are sufficient
          blackout
          Import dependency reduces domestic resilience
          In case of unfavourable weather or import limitation, winter supply is at risk
          valve
          Acceptance of gas power plants
          Gas power plants must either operate on renewable gas or achieve societal acceptance for using fossil gas
          About the scenario developer
          VSE (Swiss Association of Electricity Companies)
          VSE (Swiss Association of Electricity Companies)
          The Swiss Association of Electricity Companies (VSE) represents the interests of Switzerland’s energy utilities. It promotes a secure, competitive, and sustainable energy supply and advocates for policies that support the transition to renewable energy.
          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
          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
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          Methodology reviewed by ETH Zürich