If you're thinking about installing solar panels to generate your own electricity, make sure that the roof you'll be installing them on gets plenty of good sunlight. Good sunlight occurs between 9am and 3pm. You'll generate the most electricity if your roof receives full, exposed sunlight between those hours every day.
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.
An overview of how I made a solar pool heater for under $100.00.
When it comes to solar energy, the sky is truly the limit, so learn about your options before you buy. How much space are you allowed, by local law, to fill with solar equipment? Can you sell excess energy back to the grid? What sort of regulations are in place?