Consultation for photovoltaic system

In summer, even with such a small system, you probably generate >50kWh on sunny days. Unless the electric car is completely empty, I would be surprised if you can consume it all yourself.

That's what the storage system is for: to capture the excess. And if necessary, you just use more (air conditioning, outdoor lighting, pool heating, etc.) The main problem with photovoltaics is the terrible bureaucracy. And I have little hope that this will get better now (that would be too easy). You even have to register a balcony system; that's ridiculous. In the Netherlands, you can just nail the panels on the roof, and if there is excess, the electricity meter runs backward, done! That's how it should be.

Can you provide a few promising *g* search terms for DIY storage? Thanks!

Can you provide a few promising *g* search terms for DIY storage?
Thanks!

Try searching on YouTube for "drbacke" or "DIY power storage," "DIY LifePo4 power storage," then you will find some folks who have assembled their storage units at a fraction of the normal costs. The doctor also has a forum on the topic of batteries.

DIY storage is very difficult. I do almost everything myself, but I don't even touch something like that. First of all, it is difficult to combine the appropriate inverters and battery management systems. The number of cells, cell voltage, etc. must match together.

There are a few people who do such things, but in the end it comes down to the same financially.

And with the 48 V LifePos batteries from China, it only works, if at all, single-phase up to 5 kW. Everything else only with high voltage. And should you do DIY? No!

Last year I built a battery myself, consisting of 2 x 200 Ah 12.8V using blue cells from China. I had read a lot beforehand. Of the 400 Ah, you can discharge about 80 to 90 %, thus use 320 to 360 Ah. Previously, I had 2 lead batteries from Büttner, each 120 Ah. Of these 240 Ah, you can only use 50 % with lead batteries. The switch to Lifepo4 was very good for off-grid living in the camper. In the camper is a 2000W inverter from Solartronics....theoretically, you can load it with 2 kW for 2 hours... Our bungalow is about to be handed over, the 13.68 kWp photovoltaic system is already running. Now I am considering whether the camper battery could be used in the house.

: that is really nonsense and not true what you are writing there (except that you should know what you are doing, meaning read up, read up, read up).

"single-phase"? You are mixing something up. Multi-phase comes from the inverter, if you want that.

: Great, looks good. Nothing stands in the way of your own DIY storage!