How to Size Your RV

We can help answer your questions on what size solar system is best for your needs – Contact Us!

What Size Do I Need?

The solar panel system you need will depend on the size of your camper, size of your battery bank and how you camp. No matter what size portable solar system you need for your RV, we offer a complete solution that will work for you. Contact us if you need some help. Contact SPC Support

Solar Sizing Chart

Size of RV	# of Batteries	Recommended Kits for short term power use or lower power demands		Recommended Kits for longer term power needs or higher power demands
10'-14'	1 12-Volt	45-Watt Portable USP1005	115-Watt Rooftop KIT1003	90-Watt Portable USP1001	115-Watt Rooftop KIT1003
15'-20'	1-2 12-Volt	90-Watt Portable USP1001	115-Watt Rooftop KIT1003 or 170-Watt Rooftop KIT1005	140-Watt Portable USP1002	170-Watt Rooftop KIT1005
21'-30'	2 12-Volt	140-Watt Portable USP1002	170-Watt Rooftop KIT1005	180-Watt Portable USP1003	170-Watt Rooftop KIT1005 and 170-Watt Expansion KIT1009 340 Total Watts
31'-40'	2-4 12-Volt	180-Watt Portable USP1003	170-Watt Rooftop KIT1005 and 170-Watt Expansion KIT1009 350 Total Watts	180 or 230 Watt Portable USP1004	170-Watt Rooftop KIT1005 and 2x 170-Watt Expansion KIT1009 540 Total Watts
40'+	4-8 6-Volt	2x 230-Watt Portable USP1004	170-Watt Rooftop KIT1005 and 2x 170-Watt Expansion KIT1009 510 Total Watts	680 Watts Expandable to 1020 Watts KIT2014	680-Watt Rooftop KIT2014 or 1020-Watt Rooftop KIT1014

For further answers to your questions, contact our solar specialist Jonathan Lewis at [email protected] or 800-866-5353.