When building off grid, you have a few choices for your energy supply; the most dominant being Solar. Solar energy along with all of its components are getting more efficient and cheaper every year. Supplement solar with wind if you live in an area with consistent laminar winds.
You have three choices for heat: wood stoves, propane heaters, or electric. A solar battery bank will have a very difficult time heating your place with electricity, so if you're going that route, be sure to have access to grid power. Wood stoves provide a great atmosphere and are very effective, while propane provides ease, and the capability to heat your home while you're away.
Without access to a well or town water, you will need a water tank, and a system to pump the water where you need it. The basic system will include: a water pump, a water heater, and possibly a grey water diversion system. Designing your system, and plumbing your house is a lot of fun, and is very basic.
Propane is a good source of fuel to produce heat. It is used commonly in the off grid community for hot water, heat, and cooking. Propane is one of the cleanest burning fossil fuels.
You're going to need off grid appliances mainly for cooking and food storage. Whether you decide to go electric or propane, efficient appliances are key. Manufacturers are putting a lot of emphasize on design with small appliances, so the nice this is, they'll look good!
This system has a few options. You can use a traditional flush toilet feeding into a septic holding tank, or you can use a composting toilet to take care of waste. Composting toilets have improved immensely over the years implementing urine separating technologies to make the process a lot friendlier.