All-In-One Solar Power System
-Build a full size system in minutes-
MPP and a few other manufacturers now sell a "complete off grid system in a box" that has:
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That is awesome! What is the catch?
Pros:
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Cons:
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So loud fans, and high idle consumption. Not that bad! And for this reason, I am using a solar box to power my computer while building this webpage right now. They work really well! I have used one for 2 weeks straight, and the transfer switch works perfectly. I have done load tests on the inverter and pushed the MPPT to its max input, and nothing overheats and I like it!
3 System Sizes to choose from:
(I make a commission for purchases made through the links below)
Van life 12v System
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RV/Cabin 24v system
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Offgrid home 48v System
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Direct Download Manuals
MPP Manuals:
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Growatt Manuals:
growatt_spf_3000tl_lvm_series_user_manual.pdf |
12v System Schematic
24v System Schematic
Recommended Settings:
These MPP units have a lot of settings! You can go through each setting in the manual and set it yourself, or you can follow the settings that worked well for me below. Your needs may vary, but the settings below are good for most off-grid systems. If you have grid power connected, the settings will work great!
In my opinion, the most important setting is the "low DC cut-off voltage". This is setting number 29. You want this to be higher than your batteries low voltage disconnect voltage.
Most lifepo4 bms cut off at 10.5-11 volts in a 12v System. So I will set the cut off on the inverter at 12v. This way, your bms will never disconnect power from your inverter. If you are runnig lead acid, 12v works well. Double this number for 24v systems.
Most lifepo4 bms cut off at 10.5-11 volts in a 12v System. So I will set the cut off on the inverter at 12v. This way, your bms will never disconnect power from your inverter. If you are runnig lead acid, 12v works well. Double this number for 24v systems.