Скачать или смотреть Solar Power for your Home - Free Electricity

http://www.homemadepowerplant.com/?ho... If you are connected to normal Utility company power and just want to add some Free Sun Power electricity to reduce your electric bill and you do not need a independent system, it is possible that a Grid Tie inverter will suit your needs. With a Grid Tie inverter, whatever electricity that your solar panels produce will reduce the amount supplied by the power company, in effect lowering your bill. And, if you are producing more power than you are using, you can actually sell the excess back to the power company! For this setup a large battery bank to store the power for later use is not needed. Unless you have frequent power company outages, you will not need any batteries at all.