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This guy electrodacus.com swears that panels are so cheap now that it really only makes sense to heat with PV directly. He stores extra into an array of concre
by formvoltron 5y ago
This guy electrodacus.com swears that panels are so cheap now that it really only makes sense to heat with PV directly. He stores extra into an array of concrete slabs which then radiate out over the night. He built a special type of MPPT to orchestrate this flow of energy from PV into thermal mass. He lives in deep freeze Canada.
- kolinko 5y agoInteresting. In Poland, where I live, I researched this recently, for my mother's house - and it won't work. The heat is needed from October until April, and most of that time solar panels generate close to zero electricity. In the end, my mother will have a significant surplus of power during summer (even with storage), and will still need to heat up house in winter using gas, or grid electricity (coal :/). I read about some Nordic researchers developing long-term heat storage, which would be way better.