EnergieSchweiz
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EnergieSchweiz is run by the Swiss Federal Office of Energy and provides free information materials. For homeowners thinking about installing a heat pump, there are fact sheets covering system choice, cost-effectiveness and available subsidies.
The site also points to regional energy consulting services: many cantons offer free or subsidized initial consultations, arranged through the EnergieSchweiz network. The program is politically neutral and independent of any manufacturer.