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Maximum additions of wind and alpine PV as well as more hydro power balance strongly increasing demand. Few imports needed.
landscape
Lots of wind and alpine PV
Maximum buildout of alpine PV and wind to match strong increase in electromobility and heat pumps
wind_turbine
~150 turbines each year
Adding ~150 wind turbines each year strongly increases renewable winter production
landscape
PV: alpine only
Focus PV build-out on the alps to maximize contribution in winter. No roof-top added
water
Some hydro added
Addition of hydro where possible, focus on storage plants
globe
Low import dependency
Only little imports needed thanks to strong domestic build-out
Energy Mix
Production
Demand
Production
2024
Total generation 78 TWh
2050
Total generation 127 TWh
Demand
2024
Total demand 70 TWh
2050
Total demand 112 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
          Nuclear
          Fossil
          Challenges
          money
          Expensive scenario
          Alpine solar and hydro additions are expensive, the scenario adds a lot of them
          people
          Public opinion
          Big shift in public opition needed to build a lot of wind and alpine PV
          cloud
          Weather dependency
          System quickly gets more weather-dependent with wind, solar and hydro
          About the scenario developer
          Georg Schwarz (ENSI)
          Georg Schwarz (ENSI)
          Georg Schwarz, the former Deputy Director of the Swiss Federal Nuclear Safety Inspectorate (ENSI), is an expert in energy systems and sustainability. Through his blog, georgschwarz.ch, he presents scenarios for a climate-neutral Switzerland. His approach emphasizes replacing fossil fuels with heat pumps for heating and electric vehicles for mobility. Unlike other models, Schwarz’s scenario takes a more conservative stance on energy savings and efficiency gains, projecting a significant increase in electricity demand—about 80% higher by 2050.
          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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