Cogeneration is frequently defined as the sequential production of necessary heat and power (electrical or mechanical) or the recovery of low-level energy for power production. This sequential energy production yields fuel savings relative to separate energy production facilities because both the heat and power requirements are satisfied from a common/single fuel source. The heat that would otherwise be wasted in the power production process is recovered and leveraged to provide process heat requirements (which otherwise would have to be generated with a separate fuel source), thus providing significant fuel savings. With the recent increases in gas and oil prices, advancements in gas-turbine and gas-reciprocating-engine fuel flexibility—combined with a.
