This system started out with two flexible 100w panels, a lead acid battery, and 20A charge controller but has singe grown into a multi-voltage cascade, that can power a 400 watt air conditioner through the heat of the day.
The wind turbine is not a huge contributor to my system, providing only 10 watts in the most ideal conditions, its more to teach myself about wind power. It only produces 9-12V when wind is blowing strong and steady, and the charge controller doesn’t really kick in unless the input voltage is higher than battery voltage, so I added one of these boost converters that basically convert amps into higher voltage, here is what that looks like in some gusts:
Currently using an old server rack, and am in the process of reorganizing. System uses a unique cascading setup to go from 48v to 24v to 12v. The system originally started with a 12v lead acid bank, I wanted to take advantage of lithium WHILE utilizing my lead acid also, so I am using a renogy 50A cc that is designed for an RV and has two distinct battery banks to it: an ‘alternator’ side and a ‘service’ side. I have since gotten rid of the lead acid, and now have the following on the 12v ‘alternator’ side: single 50Ah 14.6v LiFePO4, also plugged into this battery bank is a victron 100 50, it does an unorthodox thing, its solar input connects direct to a 29.2v 200Ah battery, this allows it to ‘charge at night’. I have told the victron 100 50 to only charge at 25A (300w). On the ‘service’ side I have a 500F 16v supercapacitor in parallel with a 150Ah 14.6v LiFePO4. The ‘service’ side is charged by two sources: the ‘alternator’ side, or by the solar input of the renogy 50A cc, i hooked up a 200w 23voc (renogy allows for 25v max solar input voltage I found out the hard way), so during the day 25A max can come from solar (my panel is about 8A ish) and 25A can come from alternator. Without solar the alternator side can xfer max 50A. On the 12v service side bank I have a 1500w AC inverter, with a 410w window ac unit that is st to come on when temps exceed 79F(also on 7am to 7pm timer). On the 29.2v level I have a manual connection to a 400w automotive heater I can turn on during winter cold spells. This battery is charged by a victron 100 20, similarly it’s solar connects directly to a 100Ah 58.4v LiFePO4 server rack battery. I have told the 100 20 to charge the 29.2v battery at only 7A (200w). I have a 2500w inverter on the 48v battery. To charge the 58.4v server rack battery I have (3) strings of (3) 100w panels totalling 900w, 6 of which are oriented directly up to sky, and 3 are tilted to west, this array connects to a different victron 100 20. I have Venus os on a raspberry pi and a ve direct cable plugged into the 58.4v cc to monitor things at the top of the cascade.
I will be adding an additional 48v 100Ah rack battery
New plan is to have the 150Ah, 50Aah and 500F supercap in parallel and leave the victron 100 50 connected to alternator side (simulating alternator)
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