hegi___
2019-12-18 14:39:21
- #1
It won’t work quite like that. There are plenty of days where there isn’t even enough photovoltaic power to cover the base load.
I installed a Geisha (F model) and also experimented with timers, lowering it at night and raising it a bit during the day. Often, it wouldn’t heat at all at night and the house cooled down a bit.
None of that really convinced me. The only thing I do is have the hot water generated only between 11 a.m. and 5 p.m. That’s usually enough for us. But it depends on showering habits. And our house/photovoltaics face southeast, so there is more sun in the morning than in the afternoon.
There are certainly other photovoltaic-heat pump combinations that communicate better with each other and thus achieve a higher self-consumption rate.
Still, I am very satisfied with the Geisha, especially for the price of 2,500€. But you have to do a lot yourself or put effort into it. Or have a capable and willing heating installer who supports you with such an installation.
How much electricity do you have to purchase annually with how many m² of living space?
And what is your annual performance factor?
You mean "Smart controlled you ideally only heat the water at midday when the sun is shining on your photovoltaic system, with which you can then heat as needed at night." because especially at midday the house should not be heated in addition to the solar energy.
By smart I always imagine being able to control everything via the internet on a smartphone or something. Or raise/lower the blinds via smartphone. I usually don’t need that and have no plans to install it. But to use my own photovoltaic electricity through the heat pump, my house doesn’t have to be smart, right? That should be standard, even without smart?
By smart I meant rather intelligently controlled and not necessarily with smart home.
It goes in the direction of what described.