The new time-lapse videos are here!
They impressively show the functionality and interaction of the PVT hybrid collector and PVT Solar condensation ice storage tank+++ as a source for the b/w heat pump.

Even when there is snow on the modules, the heat pump has enough energy available to produce the necessary heat efficiently and without an electric heating element.

And that is your benefit: Operating cost savings of over CHF 5,000 per year for a terraced detached house.

Investment calculation:
PVT system CHF 29,000; heat pump, storage tank and installation CHF 39,000; electrician incl. wallbox and battery CHF 16,000; less subsidies (Canton of Lucerne + Pronovo) CHF 17,000; net investment sum: CHF 67,000 (replacement oil heating, storage tank and tank maintenance would have cost CHF 29,000) = additional costs CHF 38,000.

Operating costs:
Energy costs before (electricity, heating oil and diesel) CHF 6,060; energy costs after (only electricity incl. e-car 25,000 km/year) CHF 1,915; savings in maintenance costs (chimney sweep, inspection and maintenance of oil heating) CHF 890; net savings in operating costs CHF 5,035/year

Payback: 38'000.- / 5'035.- = 7.5 years; with a service life of 15-25 years for the heat pump and 25-35 years for the PVT system, this results in an investment gain of CHF 80'000.-.