As of today, solar energy is one of the best options that people have with regards to alternative power sources. This has already evolved.
Solar energy is almost maintenance free because the solar cells used will last for 25 years or more before it has to be replaced. You just have to keep the panels clean so it is able to absorb sunlight and convert that into electricity.
It would be great to use solar energy in your homes especially nowadays when the prices of oil and gas continue to increase.
Solar energy can be transported to far flung villages and once installed they can be left alone for years with little or without maintenance.