Hi, First timer here.
I’m trying to put together my very first solar powered system. I’ve done a lot of research but still have a few doubts I hope you can help me to solve them.
First, here are my off-grid system specs:
I’m starting small to only power a few LED bulbs and a small 12v pump for 30 min/day.
At some point, I hope to have 4 100W in a 24v series-parallel array to get the most of my CC and get a DC to AC power inverter.
Here are my questions:
These are some of the question I have stumbled upon. I’m sure once I keep going some others will pop up.
Thanks in advance for any help / advices.
Regards,
Abraham
I’m trying to put together my very first solar powered system. I’ve done a lot of research but still have a few doubts I hope you can help me to solve them.
First, here are my off-grid system specs:
- 1 12v 100W solar panel.
- Voc 22.5 | Vmp 18.9 | Imp 5.29 | Isc 5.75
- 20A MPPT charge controller from EPSolar.
- Max.PV open circuit voltage:100VDC
- Max.PV input power:12V 260W; 24V 520W
- 1 12v 100Ah AGM deep cycle battery.
I’m starting small to only power a few LED bulbs and a small 12v pump for 30 min/day.
At some point, I hope to have 4 100W in a 24v series-parallel array to get the most of my CC and get a DC to AC power inverter.
Here are my questions:
- I plan to get a 20ft 10 AWG wire for the panel/cc, would it work?
- I read on another thread that no fuse is needed from the array to the CC unless I have 3 or more strings in parallel, so even if I had 2 strings of 200W, would I be good without a fuse ?
- The 12v DC LED bulbs and pump I want to power up at night, do I need to wire them directly to the 12v battery?, or to the DC Load terminal on my charge controller ?, or how does it work if I have some 12v appliances?
- Even if at some point I have a 24v array of 2 strings of 200W, would it be ok to keep my battery bank at 12v? or would I be wasting power?
These are some of the question I have stumbled upon. I’m sure once I keep going some others will pop up.
Thanks in advance for any help / advices.
Regards,
Abraham
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