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Valley of Toggenburg

Valley of Toggenburg, Photo credit: Adrian Michael

District Heating Station Toggenburg Nesslau, Photo credit: Holzenergiezentrum Toggenburg

Högg AG - 1MW Solar PV, Photo credit: Högg AG

Hydropower Soor in Bütschwil, with fish ladder, Photo credit: Hydroelectra AG

100% Renewable Energy Goal: 

Energy Autonomy By 2034 With Mostly Local Renewables


Valley of Toggenburg, Switzerland



The Valley of Toggenburg is made up of 15 municipalities in the Swiss Canton of St. Gallen, and has a population of 45,000 people. In 2009 the muncipalities created the association “Energy Valley Toggenburg” with the aim of sustainably and locally producing all energy used in the valley, in order to achieve energy independence by 2034. By 2059, they aim to be a 2000 watt society, that is, one that continuously reduces energy use to 2000 watts per person.*


The focus is on promoting and distributing new and better power generating facilities using the latest technologies, motivating the community to make the transition, and demonstrating that a responsible approach to energy does not have to mean painful sacrifice. Rather it is a chance  for people to change and design their own environment for future generations.


To finance and develop renewable energy projects for electricity and heat production, the municipalities created the Toggenburg Energie Finanz ag (www.energiefinanz.ch).

To disseminate energy efficiency information to the public, the association offers energy audits and consulting that has resulted in many energy efficient retrofits of home energy systems and appliances. The association also partners with a local education and training center to train solar installers. It also has created a website that provides a relevant information and a map of regional renewable energy projects. 


Renewable energy achievements so far in the Valley of Toggenburg include installation of more than 180 solar hot water and heating systems, which carried a benefit of 1.5 million Swiss Francs for the local businesses, and solar PV that produces 1.4 GWh of electricity. Among the solar installations is  the largest  PV project in East Switzerland located on the roof of Hoegg AG Watt. 1.07 MW in size, the system generates power for more than 200 households. Local businesses additionally installed approximately 1.7 MW of rooftop solar. 


Additionally, river hydro has a long tradition in the region and generates 50% of the energy supply. The focus now is to analyse hydro's potential in the region, to retrofit older turbines with modern replacements, and to reactivate closed hydro stations.


Biomass also plays a role in the Valley of Toggenburg's energy mix. Wood is increasingly used not only as building material, but also to create electricity and heat. Heat generated by woodchips is distributed in a district heating grid.



*2000 watt society is a model developed at the TH Zuerich (Novatlantis) www.novatlantis.ch/en/2000-watt-society.html


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