It seems that there is a wise advise going around, try to get a big enough setup in the beggining so that it will be cheaper in the long run. I agree with it but I am finding a difficulty, the AIO systems that I can get so far, increate the size of the charge controler as they increase the voltage requirment, e.g.
So lets say I want to get an inverter and solar controler that will cover me for the future when I will buy 3 panels of 410W and 2 Lithium 12ah 12 V, but I want to start with just one panel and one battery.
So 3 * 410W = 1230W /12V= 102.5 a charge controler, rounded up to 110a or 120a. But I cannot find an AIO with 12 V batt. and 110 charge controler. Should I do it with a separted inverter and charge controler?
Another solution 1230W/24V=51.25 a charge controler, ok this is the MPP 3024MSXE 3000W with 60a charge controler at about 700 Eur., not bad but there is a catch it needs 24 V batteries, I need either to get 2 12V batteries of 100ah (SOK 630 x2 = 1260 EUR) each and put them in series or one 24 V of 100 ah (SOK 1300 EUR). But this is not a solution as it doesnt make sense to have one panel of 410W with a 3k Inverter and batteries of total 2400W.
Maybe is possible to get an AIO that can manage both 12V for the first phase with one battery and then 24V for the additnal battery and panels.
Any thoughts on the subject?
So lets say I want to get an inverter and solar controler that will cover me for the future when I will buy 3 panels of 410W and 2 Lithium 12ah 12 V, but I want to start with just one panel and one battery.
So 3 * 410W = 1230W /12V= 102.5 a charge controler, rounded up to 110a or 120a. But I cannot find an AIO with 12 V batt. and 110 charge controler. Should I do it with a separted inverter and charge controler?
Another solution 1230W/24V=51.25 a charge controler, ok this is the MPP 3024MSXE 3000W with 60a charge controler at about 700 Eur., not bad but there is a catch it needs 24 V batteries, I need either to get 2 12V batteries of 100ah (SOK 630 x2 = 1260 EUR) each and put them in series or one 24 V of 100 ah (SOK 1300 EUR). But this is not a solution as it doesnt make sense to have one panel of 410W with a 3k Inverter and batteries of total 2400W.
Maybe is possible to get an AIO that can manage both 12V for the first phase with one battery and then 24V for the additnal battery and panels.
Any thoughts on the subject?