Cogeneration/Trigeneration, 33 rd Informatory Note on refrigeration technologies.

Offering high efficiency through the recovery of thermal waste, cogeneration and trigeneration are valuable alternative technologies for producing energy. However, they should be further developed across the world in order to control the exploitation of fossil fuels and reduce greenhouse gas emissions. This Informatory Note discusses the operating principles of these technologies, their benefits as well as the obstacles hampering their development. In conclusion, the IIR provides some recommendations on the conditions required for the implementation of these technologies.