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I’ve wondered as solar gets more popular we’ll have heat and cooling systems that take advantage of the free excess electricity. For example heat my water to 1
by cobookman 7y ago
I’ve wondered as solar gets more popular we’ll have heat and cooling systems that take advantage of the free excess electricity.
For example heat my water to 140% the ideal temp and cool a thermal sink for ac when I’m away from home during peak solar.
Then when I’m at home and it’s no longer sunny my electricity needs are nil as I utilize the pre stored coolant and heat.
Haven’t done the math but I’d assume a 500 gallon water tank that’s heated or cooled during peak solar with insulation could be used to keep your home at the perfect temperature by using excess solar.
- Scoundreller 7y agoIdeally, use phase changes. A bank of ice will reject a lot more heat than 1C water. Steam too, but it’s better for transport versus storage. You could melt wax if space was at a premium.
- mywittyname 7y agoUsing a water tank as a primary heat sink for a reversible heat pump will probably reduce energy usage quite a bit on extreme weather days. Especially if said tank is installed under basement to keep the temperatures relatively stable.