Sécurité d'approvisionnement et protection du climat

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Scénario énergétique global pour la Suisse

Hypothèses sur les coûts de l’énergie et des technologies Tableau 25: Hypothèse d’évolution des coûts de le l’énergie dans tous les scénarios Development projections for fuel prices All Scenarios Biomass Synthetic Fuels Oil Gas Coal

2017 7.70 – 8.5 2.5 2.9

$/GJ $/GJ $/GJ $/GJ $/GJ

2020 13.65 – 12.3 3.3 3.3

2030 20.00 20.00 21.5 5.5 4.2

2040 26.00 26.00 24.2 6.2 4.4

2050 30.00 30.00 35.1 8.9 5.3

Tableau 26: Specific investment cost assumptions (in Swiss francs) for heating technologies in the scenarios until 2050 Investment costs for heat generation plants Geothermal Heat pumps Biomass heat plants Residential biomass stoves, ovens Solar collectors

Industrialized countries Industry In heat grids Residential

CHF/kW CHF/kW CHF/kW

2017 2533 1897 636

2020 2406 1844 615

2030 2152 1738 583

2040 1908 1632 541

2050 1685 1537 509

CHF/kW

890

859

806

763

721

CHF/kW CHF/kW CHF/kW

901 1028 1124

869 1028 1071

774 1028 965

689 1028 848

583 1028 721

Tableau 27: Investment cost assumptions for power generation plants (in CHF/kW) until 2050 Assumed Investment Costs for Power Generation Plants CHP Coal CHP Gas CHP Lignite CHP Oil Coal power plant Diesel generator Gas power plant Lignite power plant Nuclear power plants Oil power plant Renewables CHP Biomass*** CHP Fuel cell CHP Geothermal Biomass power plant Geothermal power plant**** Hydro power plant** Ocean energy power plant PV power plant CSP power plant* Wind turbine offshore Wind turbine onshore Hydrogen production

CHF/kW CHF/kW CHF/kW CHF/kW CHF/kW CHF/kW CHF/kW CHF/kW CHF/kW CHF/kW

2017 2650 1060 2650 1389 2120 954 638 2332 6996 1007

2020 2650 1060 2650 1367 2120 954 530 2332 6360 986

2030 2650 1060 2650 1314 2120 954 530 2332 5406 943

2040 2650 1060 2650 1251 2120 954 530 2332 4770 912

2050 2650 1060 2650 1198 2120 954 710 2332 4770 869

CHF/kW CHF/kW CHF/kW CHF/kW CHF/kW CHF/kW CHF/kW CHF/kW CHF/kW CHF/kW CHF/kW CHF/kW

2703 5300 13992 2544 7004 2809 7367 1378 6042 4240 1738 1463

2650 5300 11861 2491 6867 2809 7049 1039 5300 3911 1675 1293

2597 2650 9423 2438 6297 2809 4664 774 3922 3381 1601 975

2491 2650 7908 2332 5726 2809 3286 594 3233 3000 1537 742

2385 1187 6848 2237 5156 2809 2237 498 2904 2767 1484 604

Costs for a system with a solar multiple of two and thermal storage for 8 h of turbine operation **Values apply to both run-of-the-river and reservoir hydro power *** In this research, bio-energy and synthetic fuels are considered to be interchangeable fuels for power plants, combined heat and power plants (CHP), and heating plants. Synthetic fuels produced by renewable electricity—mainly solar and wind power—will either be added to bio-energy supply or replace it. *** IRENA (2017), Geothermal Power: Technology Brief, International Renewable Energy Agency, Abu Dhabi, page 13, CAPEX for binary plants—low projection

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