Lighting has been overlooked for a long time since most folks feel that they could open their lights for 24 hours and their bill will never be afflicted. Bulbs are actually small, but they consume a lot of energy.
You need to try using your existing energy source together with renewable power sources. Fundamentally, you can't rely solely on renewable energy sources right now to provide the energy needs of your family.
Lighting is usually ignored because a number of folks feel that you can turn on the lights for 24 hours without worrying about your electricity. Even though bulbs are little, they really up plenty of energy.