Environment-friendly Energy Transition

Switzerland has firmly resolved to pull out of atomic energy in a step-by-step program. The Federal government’s Energy Strategy 2050 envisions the expansion of hydroelectric power and the increased use of other renewable energy sources. Eawag is researching the impacts of this energy transition on Swiss waters and society and developing processes for a more efficient use of energy from various sources.


November 22, 2021

ETH Zurich has awarded the Otto Jaag Water Protection Prize to environmental engineer Elisa Calamita for her doctoral thesis “Modelling the effects of large dams on water quality in tropical rivers.” The price honours outstanding dissertations and master theses from ETH Zurich in the field of water protection and hydrology.

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November 17, 2021

The separation toilet save! has won the Design Award Switzerland 2021. This is also a milestone for Tove Larsen. She is a member of the Eawag Directorate and has been researching for almost 30 years how the nutrients in wastewater can be recovered in a useful way. In this interview on the occasion of World Toilet Day 2021, she explains how crucial our handling of wastewater is for climate change and for achieving the SDGs sustainability goals.

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Scientific publications

Calamita, E.; Siviglia, A.; Gettel, G. M.; Franca, M.J.; Winton, R. S.; Teodoru, C. R.; Schmid, M.; Wehrli, B. (2021) Unaccounted CO2 leaks downstream of a large tropical hydroelectric reservoir, Proceedings of the National Academy of Sciences of the United States of America PNAS, 118(25), e2026004118 (8 pp.), doi:10.1073/pnas.2026004118, Institutional Repository
Cavadini, G. B.; Cook, L. M. (2021) Green and cool roof choices integrated into rooftop solar energy modelling, Applied Energy, 296, 117082 (13 pp.), doi:10.1016/j.apenergy.2021.117082, Institutional Repository
Contzen, N.; Handreke, A. V.; Perlaviciute, G.; Steg, L. (2021) Emotions towards a mandatory adoption of renewable energy innovations: the role of psychological reactance and egoistic and biospheric values, Energy Research and Social Science, 80, 102232 (15 pp.), doi:10.1016/j.erss.2021.102232, Institutional Repository
Hileman, J. D.; Angst, M.; Scott, T. A.; Sundström, E. (2021) Recycled text and risk communication in natural gas pipeline environmental impact assessments, Energy Policy, 156, 112379 (12 pp.), doi:10.1016/j.enpol.2021.112379, Institutional Repository
To the library

Strategic area of focus "Energy"

Within the framework of the ETH Domain’s strategic area of focus «Energy», Eawag investigates the environmental impacts of energy production, the acceptance of alternative energy supply, the potential for energy savings and energy production from wastewater. Click for a complete project list.

Selected research projects

Watercourses are among earth's most biodiverse ecosystems. However, they are also under severe pressure from construction work and hydropower generation, among other things.
Sustainable urban water and wastewater management applied and implemented in the modular NEST building.
This project aims at providing a better insight into the public preferences of the Swiss population for the suggested hydropower expansion.
Watercourses are among earth's most biodiverse ecosystems. However, they are also under severe pressure from construction work and hydropower generation, among other things.
Collaborative learning for hydropeaking mitigation


Dr. Christian Binz
  • decentralized systems
  • innovation
  • global change
  • sustainable transitions
  • urban water management
Marc Böhler
  • wastewater treatment
  • micropollutants
  • ozonation
Dr. Nadja Contzen
  • environmental psychology
  • transdisciplinary research
  • behaviour change
  • health psychology
  • public acceptability
Dr. Andreas Frömelt
  • wastewater
  • wastewater treatment
  • data science
  • machine learning
  • modeling
Prof. Dr. Karin Ingold
  • science-policy interface
  • environmental policy
Dr. Adriano Joss
  • wastewater
  • micropollutants
  • ozonation
Prof. Dr. Rolf Kipfer
  • noble gases
  • isotopes
Dr. Ivana Logar
  • decision analysis
  • sustainable water management
  • environmental economics
Dr. Martin Schmid
  • modeling
  • surface water
  • hydropower
Prof. Dr. Bernhard Truffer
  • wastewater
  • decentralized technologies
  • transdisciplinary research
  • hydropower
Prof. Dr. Kai Udert
  • wastewater separation
  • decentralized technologies
  • nutrients
  • urine separation
  • resource recovery
Dr. Christine Weber
  • fish
  • river restoration
  • ecology
Prof. Dr. Bernhard Wehrli
  • river restoration
  • hydrogeology
  • surface water
  • sediments
Prof. Dr. Alfred Johny Wüest
  • aquatic ecology
  • water quality
  • Lake management
Dr. Christian Zurbrügg
  • solid waste management
  • sustainable water management
  • water treatment
  • urban sanitation
  • water supply