oneshotjon
New Member
- Joined
- Sep 9, 2022
- Messages
- 7
I bought property with an existing solar powered well pump. It runs off of three 180 watt panels wired in series. Since I don't need to pump water daily I thought I could use these panels to charge some batteries and use the power in my shop. I may have wrongly assumed these were 12 volt panels.
The label says;
180 W
Vpp 25.9 V
Ip 6.95 A
Voc 32.6 V
With these wired in series the open circuit voltage at the connection is over 90 volts. I thought I was going to make a 36 volt system with 3- 12 volt batteries wired in series, with an Epever 50A tracer charge controler, which I have, and is capable of using 12, 24, 36 or 48 volts and then to a 36 volt inverter. Now I'm not sure any of this is compatible. If the panels are 24 volt I can't run them in parallel as the well pump needs a minimum of 30 volts DC to run. I'd need to buy another panel, which I could never match the ones I have, and another battery and run them series- parallel as a 48 volt system. Am I chasing my tail or is there any way this will work. I'm not against just building another system and leaving the well alone. It just seemed like a no brainer and now I feel like I have no brain!
The label says;
180 W
Vpp 25.9 V
Ip 6.95 A
Voc 32.6 V
With these wired in series the open circuit voltage at the connection is over 90 volts. I thought I was going to make a 36 volt system with 3- 12 volt batteries wired in series, with an Epever 50A tracer charge controler, which I have, and is capable of using 12, 24, 36 or 48 volts and then to a 36 volt inverter. Now I'm not sure any of this is compatible. If the panels are 24 volt I can't run them in parallel as the well pump needs a minimum of 30 volts DC to run. I'd need to buy another panel, which I could never match the ones I have, and another battery and run them series- parallel as a 48 volt system. Am I chasing my tail or is there any way this will work. I'm not against just building another system and leaving the well alone. It just seemed like a no brainer and now I feel like I have no brain!