You can be free of the power grid when you generate your own solar power. You, yourself, can get it work, making your family more independent than your neighbors. In other words, you won't need to change electric services should you move, nor will you see high electric bills anymore.
Solar Energy Technology by Prof. V.V. Satyamurty, Department of Mechanical Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in.
In conclusion, the environment and you, in general, can greatly benefit from solar energy. Take advantage of a natural resource that benefits everyone. Use these tips to help with your energy usage.