Quadgeneration is a  combination of heat, power, cooling and CO2 from exhaust gases. The process is including heat produced by a cogeneration plant to generate chilled water for air conditioning or refrigeration and utilizing CO2 extraction system for CO2 production.

Quadgeneration systems supply energy in three forms and the by-product CO2 :

1. Electricity
2. Heating
3. Chilled water for ACs and Industrial processes
4. CO2

The CO2 can be used in many industries like beverage industry, greenhouses, gas industry, etc.