Do you have a stream on the property? Micro-hydro is a really good way to do it. As a DIY project, it can be pretty cheap, and unlike solar it works 24/7.
Wind power is another possibility many off gridders use. Unlike hydro, it will likely also require a battery bank, but it is an option.
Many people will recommend solar I’m sure, but it’s a last choice for me even though I am a certified solar tech.
Generators are great for a backup plan, and a generator that uses a heat engine (external combustion engine, ie: a stirling engine & similar) can be run on solar, and have a much larger output than solar panels. They can also be run on fuel if needed.
Last but not least is what I’ve been calling a “black box” for the last several years. I just recieved one, and I guess the correct name is “Pico Hydro”. It is a self contained micro hydro system, using a water reservoir and a pump. I have been involved in building larger versions of these, using 8-12 foot water wheels, but these newer models are just the size of an ice chest.
Mine is generating 3600 watts, so basically the same as my gas generator. It is extremely quiet, and requires no fuel, just a battery to start the water pump, and then it is self running. It has 2 electrical outlets, 2 12v outlets, 2 USB outlets, and 2 of maybe a different type of USB outlets.
I am REALLY impressed with it so far, but I’ve only had it a couple of days. A friend has been using one for the last couple of years though, and loves his.
When I switch from my camper van to my bus this summer, I’m hoping this will power everything I need. Time will tell.
"Be the reason someone smiles today!" ~ Van_Dweller