The best renewable energy source is solar energy. Solar energy takes the light from the sun and turns it into energy. The equipment is very expensive but it pays off in the end. In some place you can do net marketing and pay very little if you use electric through your energy company. Net marketing is calculated by how much energy that you used of the energy company and how much you gave to the energy company. For example if your mom is at work and you and your sister at school and no ones home your energy will be put into the power lines of your neighborhood.

Like all resources available solar power has its downfalls. Besides it being very expensive at first, you cannot use it when the sun is not out or cloudy days when the sun doesn't shine alot. In places where they don't get alot of sunshine this may not be a good resource for them.

I think that in a few years there will be a way to store the electricity in some sort of battery that charges during the day and powers on at night.