Solar Panels - Series vs Parallel I don't know which way to set mine up...

[K7WMC]

You might also try the Beginner's Corner, these might help you out:

• Beginner Video Playlist
• What does it mean to have solar panels in parallel and series?
• How to figure out how much Solar and inverter wattage is needed to charge a battery
• Figuring out how many panels in series and parallel based on your MPPT
• What wire gauge should I use? (video, calculator)
• Comparing Solar Panels
• What should you pay for a Solar Installation?
• How can I find out which solar panels are damaged?
• This isn't working, how do I troubleshoot it?
• I made this! Is it safe?
• Grounding PV
• Battery FAQ
• Basics of Wind Loading
• Some useful calculators

Thank you Rider.?

 

[Rider]

Thank you Rider.?

Welcome, but thank the other moderators for putting together all of this information.

 

[K7WMC]

@Rider, I have a MPP brand 12 inverter charger 800W. It has an MPPT 40 amp charge controller. My solar panel open circuit voltage is also 22.5V. x 5 panels would be 112.5. the max voltage for the MPP inverter is 145 volts. So would I be alright with 5 panels and series?

 

[Rider]

@Rider, I have a MPP brand 12 inverter charger 800W. It has an MPPT 40 amp charge controller. My solar panel open circuit voltage is also 22.5V. x 5 panels would be 112.5. the max voltage for the MPP inverter is 145 volts. So would I be alright with 5 panels and series?

Yes, as long as the wattage is also below the max input. You have 5 x 100w = 500w. You are fine. The thing to consider tho, is that if one panel goes into the shade, the power will be severely diminished, even if you have bypass diodes. If there is any chance of partial blockage, you might be better off with a series/parallel combination.