Jon Coffey wants to install a battery system so he can store the solar power output when he's not at home — but he says he's "looking at nearly $20,000" to fund it.
I was quoted around $15,500-$16,000 for a 12.8 to 13.5 kWh battery plus install for comparison.
@makingStuffForFun The roof ones are different. Your caravan ones aren’t designed to work with the grid like that