Photovoltaic Battery Storage - Market Check Fire Hazard

Cool.
How is it in summer? Do you then open the closet?

I have the 10.2 and could handle a bit more. It's just a question of the size of the photovoltaics, so that there is still enough to store. Financially, retrofitting is difficult to manage at current prices anyway. With VAT deduction, subsidies, and depreciation, it looks completely different with joint procurement.

How much capacity do you have on the roof?

I have the 10.2 and could handle a bit more. It’s basically a question of the size of the photovoltaic system, so that there is still enough to store.

Financially, retrofitting is difficult to justify at current prices anyway. With VAT deduction, subsidies, and depreciation, it looks quite different with a joint purchase.

Currently, my system still delivers enough. The "problem" for a worthwhile storage system is always that you can't (usefully) empty it in summer and it’s not full in winter when the photovoltaic system produces little and the heat pump consumes all of that little.

If you consume 10kWh every night, in my opinion, you should rather work on reducing consumption first.

If you consume 10kWh every night, in my opinion you should rather work on reducing consumption.

On the one hand, it is currently about days with temporarily bad weather during the transition period. That means in total enough would have been produced, but fed into the grid, while the battery is discharged early in the day during bad weather.

On the other hand, 10kWh are quickly gone in winter. At night the heat pump runs for heating, I already try to schedule hot water strictly during the day. Sometimes quickly cooked dinner (see when it gets dark...), maybe the washing machine or dishwasher also runs in the afternoon.

Since March 10th I have been completely self-sufficient, yesterday was the first day with external supply, because despite over 28kWp, only 4.5kWh were produced due to the weather.

The "problem" for a worthwhile storage is always that you do not (meaningfully) empty it in summer and not fill it when photovoltaic then delivers little and the heat pump consumes the little completely.

As of today for 2022: 1970 kWh discharged from the storage. For 2021 it was ultimately 2290 kWh, whereas the yield this year is already significantly higher than in 2021 overall.

Cool. How is it in summer? Do you then open the cabinet?

Why Should we? The battery doesn’t generate any heat …