Cogeneration systems are combined energy systems that combusts primarily natural gas and other fuels to produce both electricity and heat.
The purpose of cogeneration is to maximize the energy yield from the primary fuel. Trigeneration systems, on the other hand, provide energy for enterprises in three different forms simultaneously: electricity, heating, and cooling. Trigeneration differs from other forms of generation in that the cooling mechanism built into the system meets cooling demands by reusing the heat output.
The overall energy efficiency of cogeneration and trigeneration systems, which provide energy in various forms from a single source, including electricity, heating, and cooling, can reach high level of efficiency exceeding 90%. The energy forms that the consumers require are made available at required times and quantities. Distributed power plants, which enable energy generation at the location of consumption, offer energy efficiency and cost savings while avoiding distribution and transfer losses. They reduce reliance on the grids and minimize setbacks like outages, fluctiations and irregularities.
Cogeneration and trigeneration plants, besides economic advantages, protect the environment and public health as a result of dramatic reduction of carbon emissions.