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My distributed solar for our hired appartment

Posted: Thu Jun 26, 2025 7:12 pm
by johu
Just found I never shared this here.
So since 2014 I've have various kinds of solar panels on the balcony, right now 500W on one Enecsys inverter and 350W on some other one.
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Then I added various panels onto the garage roof of the garage I don't even rent. One was bought new 390W, then 35 year old panels from my dads old system and (not on the picture) 2 thin film panels from a large near by power plant that was repowered. Another 450W Enecsys inverter and the infamous China "Grid Tie Inverter" for the two thin film panels. Highest power output I ever saw was 700W.
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When I built the V2G setup I procured a 5 kW hybrid inverter that I only use the battery part of. I thought that is a bit sad, so I bought 4 440W panels for 60€ a piece and now had to find a place to put them.

How about here?
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The plants died from some insect pest last year so I got rid of them.

Mounted the rails
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And the panels
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They are high voltage panels, sitting at aorund 40V MPP or 50V open circuit. The minimum MPP voltage of the inverter is 150V so that's a match. Energy can now flow nicely straight from the sun into the cars battery without DC/AC/AC/DC conversion losses.
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And for the sake of completeness, if the car's not home energy is stored here:
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I'm planning to kill off the large solar array when energy can no longer be used or stored. Prevents problems with grid export.

Re: My distributed solar for our hired appartment

Posted: Thu Jun 26, 2025 8:03 pm
by Jacobsmess
400w panels for 60eur each is cheap, in the UK I think they're going for around £65 each new which is amazing. They're almost cheaper than fence panels... and much more productive!

Re: My distributed solar for our hired appartment

Posted: Thu Jun 26, 2025 8:07 pm
by johu
Yeah it's outrageous how much they've come down! If you buy a palette of 36 it drops towards 50€.

Re: My distributed solar for our hired appartment

Posted: Thu Jun 26, 2025 8:51 pm
by Jacobsmess
johu wrote: Thu Jun 26, 2025 8:07 pm Yeah it's outrageous how much they've come down! If you buy a palette of 36 it drops towards 50€.
Crikey! Now just to find a place for 36 panels....

Re: My distributed solar for our hired appartment

Posted: Fri Jun 27, 2025 2:35 am
by Proton
On the balcony you could squeeze 4 panels, or 8 if you install the vertically. and you an create some shade for the rooms below in the summer.