The main objective of the polygeneration concept is to create a sustainable energy society based on a combination of energy savings, efficient use of fossil fuels and increasing the use of renewable energy.
The polygeneration approach focuses on the basis of delivering more than one form of energy to the final user. The energy supplied to the system could be provided by conventional sources, including fossil fuels, renewable energy or a combination of them. For example: electricity, heating, cooling and dehumidification can be simultaneously delivered from one polygeneration plant. Polygeneration are highly energy integrated systems covering conventional cogeneration, trigeneration, as well as technologies for producing fuels and other valuable sub-products such as potable water and dry air, among others.