OffGridInTheCity said:
Pietershomeprojects said:
there is the pool setup... a 400W pump that runs about 7 hours a day and a pool heater of 2Kw....
So i'm aiming for an upgradable setup.
400w * 7 = 2800wh + 2kw * 5hrs/day = 10000wh. That's in the range of 13kwh/day or 13*31days = 403kwh/summer-month.
If you're climate is similar to mine - you'll need around 9 x 300w panels for the above - e.g. a 2700w PV array. A Midnite Solar Classic 150 charge controller needs at least 3 x panels in series for 120v - but can grow up to 12 or 15 panels. So as an example, you might invest in equipment that can start at 3 panels but grow to 12 or 15. I use 285w panels and have 15 of them per each Classic 150 for 4275w each.
Pump and tools require spikes in power and heater is 2000watts - so you need a 3000watt -4000watt inverter. A 48v battery would better for this level of power as 4000w/48v = 83amps. If you go 24v that would be 166amps - getting up there
Personally - if its OK budget wise I would think in terms of starting with 3 x panels (in 280 - 330w range - e.g. 120v input voltage range) and a 48v battery bank and get equipment than can size up to the 9,12,15 panel level and 4000w inverter level.
Note: I find PVWatts (
https://pvwatts.nrel.gov/pvwatts.php)a free/accurate way to get good estimates of PV power for your exact location. Its been within 10% +/- accurate with my city.
Heyhey,
About the climate, i got a solar setup right now (on grid) of 4,5Kw) and I got about 4Kw a year.
Im looking for solar panels, and I wanted to add 15 or so I got the space for it so ?
Ive seen 290Wh panels for a good price.
Im from Belgium, so we work with 220V systems
I love the idea of expandable like you said, start with 3 and grow from there on
If I leave out the heater to start with, since I dont want to go into 48v (yet).
The midnight solar classic looks good, but to begin with, a little bit too expensive (for now) if I calculate everything I want the price tag is a little bit to much (did I mentioned I got 4 woman in the house???)
So, you suggestion, 3 panels and an 48v bank ok, but I need more batteries for that. But what cheap converter will do to start with? Which BMS (also since Im getting into this, not too expensive)
And ofcourse, available in EU would be nice..
I tried the site, and yes they are pretty close!
Maniac_Powerwall said:
Wow, big plans. To power everything I agree wit OffGridInTheCity. Gotta go big. Definetly a 48V System and rather big Powerwall. Maybe 14S80P or even bigger. Better 6 Panels depends on where you are located.
Also just looked your video. I think you will not get very happy with these chinese cells... Just my thought.
Thanks,
Well, about those chinese cells... the thing is, in Europe, you'll pay 10 - 14$ for 2 cells.... so i don't know where else to get them, for a reasonable price... i'm starting to look for used batches... but here, it's hard to do with our regulations...