Cogeneration or CHP (Combined Heat and Power). The terms cogeneration and CHP are used interchangeably in this paper and are defined as the combined simultaneous generation of heat and electrical energy with a common source of fuel. Common examples of cogeneration applications include pulp and paper mills, steel mills, food and chemical processing plants, and District Heating (DH) applications. Since the beginning of the 20th century, cogeneration technology has been utilized by many industrial companies as an eco-friendly means to economically meet a plant’s combined heat and power demands. The volatility of fuel costs and electricity prices in deregulated markets—coupled with the need to secure reliable heat and power supplies, along with.