A Power Purchase Agreement (PPA) is an agreement between a homeowner/building owner and Solar City, where Solar City covers the full cost of installing and maintaining a solar system. In return, the host customer agrees to buy the power produced by the system. This allows building owners to pay as they go, rather than in one large upfront payment.
Saturday, October 19, 2013
Gaseous components in the atmosphere that contribute to a gradual warming of the planet. The most prevalent of these gases is carbon dioxide, which is released in large quantities when fossil fuels are burned. Nothing is burned to convert sunlight into power. Since solar energy does not have any gaseous by-products, it is considered "clean."
wo or more electrochemical cells enclosed in a container and electrically interconnected in an appropriate series/parallel arrangement to provide the required operating voltage and current levels. Under common usage, the term battery also applies to a single cell if it constitutes the entire electrochemical storage system.