Cited by 37Integrated Energy Systems OptimizationElectric Vehicles and InfrastructurePower Systems and Renewable Energy

Impacts of an increased substitution of fossil energy carriers with electricity-based technologies on the swiss electricity system

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Rüdisüli, Martin, Teske, Sinan L., Elber, Urs·2019·Energies

Abstract

Electrifying the energy system with heat pumps and battery electric vehicles (BEV) is a strategy of Switzerland and many other countries to reduce CO2 emissions. A large electrification, however, poses several new challenges for the electricity system, particularly in combination with a simultaneous substitution of nuclear power plants (NPP) by volatile renewables such as photovoltaics (PV). In this study, these challenges in terms of additional electricity demands, deficits and surpluses as well as effective CO2 mitigation are assessed in a dynamic and data-driven approach. To this end, electricity demand and production profiles are synthesized based on measured data and specifications and assumptions of the key technologies at a high temporal resolution. The additional electricity demand of heat pumps is estimated from hourly measured heat demand profiles of a Swiss district heating provider, while for BEV different recharging patterns are combined. For electricity production, NPP are deducted from the current electricity production profile, while PV is added at an hourly resolution. In order to estimate CO2 emissions, life-cycle analysis (LCA) CO2 intensities of the different technologies are used. It is shown that with a BEV and heat pump penetration of 20% and 75%, respectively, there is an almost 25% (13.7 TWh/year) increase of the electricity demand and—just as challenging—an additional maximum power requirement of 5.9 GWh/h (hourly-averaged power). Without additional storage options, large amounts of electricity must be imported in winter and at night, while in summer at noon there is a large surplus from PV. Due to their high CO2 intensities—at least for the next decades—electricity imports and PV may—depending on the reference scenario (with or without NPP) and assumptions on other key parameters—even offset the overall CO2 savings of a highly electrified Swiss energy system.

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Research works printed but not linked: 5

  1. Densing, M.; Hirschberg, S.; Turton, H. Review of Swiss Electricity Scenarios 2050; Technical Report;
  2. Moret, S. Strategic Energy Planning under Uncertainty Stefano MORET. Ph.D. Thesis, EPFL, Lausanne, Switzerland, 2017.
  3. Weber, C.; Figenbaum, E. Transition from ICEV to BEV: How do personal usage patterns change? In Proceedings of the EVS32 International Battery, Hybrid and Fuel Cell Electric Vehicle Symposium, Lyon, France, 19-22 May 2019.
  4. Marshall, H.E. Sensitivity analysis. In Technology Management Handbook; CRC Press: Boca Raton, FL, USA, 1999; pp. 59-63.
  5. Romano, E.; Hollmuller, P.; Patel, M.K. Real-time carbon emission due to electricity consumption-A marginal approach for an open economy: The case of Switzerland. In Proceedings of the 3rd AIEE Energy Symposium-Current and Future Challenges to Energy Security, Milano, Italy, 10-12 December 2018; pp. 26-27.

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Authors
Rüdisüli, M., Teske, S. L., & Elber, U.
Affiliations
Empa (CH)
Corresponding author
Rüdisüli, Martin
Venue
Energies
Publisher
MDPI AG
Published
2019-06-21
Volume
12
Issue
12
Pages
2399
ISSN
1996-1073 (ISSN-L)
OpenAlex
W2946328381
Cited by
37
References
42
Citations by year
2026: 2 · 2025: 3 · 2024: 6 · 2023: 9 · 2022: 5 · 2021: 6 · 2020: 6
FWCI
1.53
Type
journal article
Language
en
Open access
Locations
  • Energies (publishedVersion, cc-by)
  • DORA Empa (Swiss Federal Laboratories for Materials Science and Technology (Empa)) (submittedVersion, cc-by)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Eidgenössische Materialprüfungs- und Forschungsanstalt
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Integrated Energy Systems Optimization
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Electric Vehicles and Infrastructure
  • Physical Sciences › Energy › Energy Engineering and Power Technology › Power Systems and Renewable Energy
Keywords
heat pumps, battery electric vehicles, nuclear phase-out, photovoltaics, electricity demand, electricity imports and exports, CO2 emissions, CO2 emission reduction, district heating

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