Solar panel basics
Solar Panels for Off-Grid Power
Solar panels are where your off-grid power starts. They turn sunlight into electricity that charges your battery, so the more sun you can capture, the more freedom you have from the grid. Choosing panels means picking the right type, size, and number for your space, and it's simpler than the spec sheets make it sound.
How to choose
Picking the right panels
Rigid for permanent, portable for flexible
Rigid panels bolt to a roof and last for decades. Folding panels pack away and follow the sun, which is handy for camping or a power station.
Bigger panels are cheaper per watt
A pair of 200W panels usually costs less than four 100W panels for the same power, and takes less wiring. Use the biggest that fits your space.
Size for your battery, not your roof
More panels are only useful if you have battery to store the extra. Balance the two so neither sits idle.
Mind your real sun hours
Panels rarely hit their rated wattage all day. Plan on a handful of strong sun hours, and add a little headroom for cloudy stretches.
Best picks by use-case
Top solar panels for off-grid
Best Solar Panels for a Cabin
Durable panels and the right count for an off-grid cabin or tiny home.
Best RV Solar Panels
Rigid 100W and 200W panels, a flexible option, and the mounts to fit them.
Best Portable Folding Panels
Foldable panels for camping, vans, and topping up a power station.
100W vs 200W Solar Panels
One big panel or two small ones? Which to buy for your roof.
Frequently Asked Questions
How many solar panels do I need?
It comes down to how much power you use and how much battery you have. A van might need one or two panels, while a full-time cabin can need six or more. Our cabin sizing guide walks through worked examples.
Are rigid or portable panels better?
Rigid panels give you the most power per dollar and last longest, so they win for permanent roofs. Portable folding panels are best when you want to move them, aim them at the sun, or pack them away.
What's the difference between 100W and 200W panels?
Just size and output. A 200W panel makes roughly twice the power of a 100W one and usually costs less per watt. If you have the space, fewer larger panels mean simpler wiring. But two 100W panels fit a cluttered roof better and tolerate shade more gracefully, so the right answer depends on your roof. Our 100W vs 200W page walks through the full decision.