To install small 3 kva Axpert inverter to get enough power to backup for just over 3 hours.
Cost - around R 13000.00 spent so far for an inverter, 2 gel batteries, a changeover panel (complete), 125 amps fuse holder and fuses, cabling and a board to mount everything (excluding the Pi3B+ and the solar assistant software)
What do you get for R13000.00, a system to power your whole house, not quite, in fact very little power.
To get 3 hours of backup, you can only load the 3000 watt system with around 400 watts, that not much.
I switched off the power at 7.20am and the power dropped to 23 VDC at 11 am.
Combination of a resistive and inductive load - 394 watts constant total (13%)
Battery 17 amps.
R13000.00 for 13 % usage of a 3000 watt inverter for around 3.5 hours, it just seems like such a waste of money.
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