Cogeneration, also known as Combined Heat and Power (CHP), is an innovative energy process in which both electricity and heat are simultaneously generated from a single energy source. In traditional thermal power plants, there is often a waste of thermal energy, which is a byproduct of the electricity generation process. Cogeneration addresses this issue by utilizing the heat produced during the process for heating or cooling purposes. This significantly improves energy efficiency and promotes sustainable resource utilization.



Trigeneration is a more advanced form of cogeneration where electricity, heat, and cooling are simultaneously produced. In a trigeneration system, mechanical energy is converted into electrical power, and the released heat and cooling are efficiently utilized. This sophisticated system allows for the simultaneous fulfillment of diverse energy needs by providing electrical power, heat for heating or industrial processes, and cooling for air conditioning. Trigeneration contributes to improving energy efficiency and reducing greenhouse gas emissions, serving as a sustainable and efficient energy solution.


Cogeneration Production Methods:

Internal Combustion Engines:

  • Internal combustion engines are used to directly convert thermal energy into mechanical and then electrical energy.
  • Applied in smaller cogeneration systems, for example, in industrial plants or public utility buildings.

Gas Turbines:

  • Gas turbines are effective in converting thermal energy into mechanical and electrical energy.
  • Commonly used in larger cogeneration installations, such as cogeneration power plants.

Hydraulic Engines:

  • Hydraulic turbines are used to generate electrical energy from the kinetic energy of rivers or streams.

Steam Turbines:

  • Mainly used in large cogeneration plants.
  • Heat generated during the fuel combustion process is transformed into steam, which then drives a steam turbine, generating electrical power.


Trigeneration Production Methods:

Absorption Chillers:

  • Utilize the absorption of refrigerant gases to produce cold from waste heat.
  • Simultaneously produces heat, electrical power, and cold during the manufacturing process.

Adsorption Chillers:

  • Operate on a similar principle to absorption chillers but use adsorption instead of absorption.

Cogeneration Integrated with HVAC Systems:

  • Introduce trigeneration into heating, ventilation, and air conditioning (HVAC) systems, allowing for the efficient use of energy generated in the process.

Cascade Energy Systems:

  • Integration of different technologies, such as microturbines, fuel cells, and absorption chillers, to achieve comprehensive production of electrical power, heat, and cold.

All these methods aim to minimize energy losses by multiple uses of the heat generated in the process of electricity production.