Should the inverter be placed outside?

From 30kWh onwards, you have to pay income tax, i.e. income tax declaration etc.

From 30kWh you have to pay income tax, i.e. income tax declaration etc.

That's why there are two systems. Everything can be optimized (although I see the tax as a minor problem, since with the purchase price such a system is a no-brainer. It either performs extremely well or just very well).

From my own experience: I have just under 28kWp on the roof and a 25kW inverter from Solaredge in the utility room. I cannot tell that it gets excessively warm there. At the same time, of course, I don't know how it would be with two of those things...

This year we installed the photovoltaic system freshly and got a 10KW inverter. When the sun shines and the inverter is busy, it gets significantly warmer in the HAR. Since we don't have a basement and the HAR used to be the coolest place, we used to store potatoes and onions there, which no longer works.

Hi,
as already mentioned, the WRs always have a power loss that is converted into heat. This is 1-5% depending on quality and power range. Realistically, expect 2-3% of that to occur as heating output. And with large systems, that quickly amounts to 1kW or more.

Best regards,

Andreas

The compensation has unfortunately become significantly worse, yes. Nevertheless, it is still recommended to fully equip the roof from what I gather. If I weren't installing it myself, I might possibly hesitate or recalculate very carefully. The Sungrow inverter I currently have in mind is specified with a 2% loss rate. But I think about 800W could already occur there.

From my own experience: I have almost 28kWp on the roof and a 25kW inverter from Solaredge in the technical room. I can't say that it gets excessively warm there. At the same time, of course, I don't know how it would be with two of those things...

Can you maybe reveal a bit more about that? Room size? Ventilation system? KfW40? Domestic hot water heat pump installed? They extract heat from the room.

For the battery, I initially thought perhaps only about 5-7kWh. And after a year, I check our consumption and expand if necessary.

For the almost 20k€, I even calculated with the expensive Aiko panels. Roughly 8,000€ for 80 panels. But with 475Wp and great aesthetics.