Patent ID: 7334391

Claim:
An electric power supply system comprising: a gas engine; a gas turbine; a gas collecting device configured to collect a gas being generated; a gas separating device configured to continuously separate the gas that is supplied from the gas collecting device and has a content of combustible component that varies with time, according to the content of combustible component contained in the gas; a calorie adjusting device configured to selectively mix gases having different contents of the combustible component which are separated by the gas separating device to adjust the content of the combustible component of the gas to be supplied to the gas engine and the gas turbine; a system control device configured to control an operation of the gas engine, an operation of the gas turbine, and an operation of the calorie adjusting device; and a gas amount balance monitor device configured to monitor balance of supply and demand between an amount of the gas consumed by the gas engine and the gas turbine under operating condition and an amount of the gas supplied from the calorie adjusting device to the gas turbine and the gas engine, wherein the system control device is configured to control the operation of at least one of the gas engine, the gas turbine, and the calorie adjusting device, based on a signal from the gas amount balance monitor device.