Date Added: Jan 2010
The electrical power generation, transmission and distribution system has survived for decades with limited intelligence. But the emergence of independent power producers, green power sources and new regulatory regimes is making it imperative to add smarts to the grid. The grid receives power from a variety of conventional and green power sources. The grid then distributes this power to industrial, commercial and residential consumers. Power flowing into the grid must be matched with power outflows as closely as possible on a real-time continuous basis. When power inflows and outflows don't match, voltage fluctuations occur on the grid.