Jake
New Member
- Joined
- Oct 6, 2019
- Messages
- 19
Need help deciding!?
Have been wondering how I should configure my four 120 watt solar panels on my new RV. Each panel when connected to the MPPT produces ~18 volts @ 6.67 amps. In Parallel that would be a maximum of ~ 26 amps @ 18 volts to the 40A MPPT. In Series that would be ~6.7 amps @ 72 volts to the MPPT with a max input of 100V.
This brings me to the LARGEST Pros & Cons of each configuration. Parallel PV’s will require larger Gauge Wire and more wire. Series has the “Shading” problem! I could get around the Shading Problem by installing Bypass Diodes (100v 15A Schottky).
Both configurations seem feasible but I’m calling on the DIY Experienced Followers for their Knowledge Bank! Maybe I’m not seeing all the Advantages but mostly the Disadvantages of each, or even maybe a combination of 2S2P?
Have been wondering how I should configure my four 120 watt solar panels on my new RV. Each panel when connected to the MPPT produces ~18 volts @ 6.67 amps. In Parallel that would be a maximum of ~ 26 amps @ 18 volts to the 40A MPPT. In Series that would be ~6.7 amps @ 72 volts to the MPPT with a max input of 100V.
This brings me to the LARGEST Pros & Cons of each configuration. Parallel PV’s will require larger Gauge Wire and more wire. Series has the “Shading” problem! I could get around the Shading Problem by installing Bypass Diodes (100v 15A Schottky).
Both configurations seem feasible but I’m calling on the DIY Experienced Followers for their Knowledge Bank! Maybe I’m not seeing all the Advantages but mostly the Disadvantages of each, or even maybe a combination of 2S2P?