Know how light mixes with the trees around your property. You may think you've got the perfect spot for a solar panel, but watch it throughout the day. The sun coming in from different angles may lead to surprising shadows from trees and foliage. This will affect your solar output.
This is a brilliant DIY hack for creating an off-grid water heater with just a simple handmade rocket stove, water barrel, and copper pipes! No pump! No propane!
If you have animals that require electric fencing to contain them, use solar powered fencing units to provide power for them. A great advantage to these systems is that they are completely mobile, and can be easily moved. If you are a horse owner who enjoys overnight horse-camping, the fencer can be easily taken along.