Combined Heat and Power CHP
Cogeneration or combined heat and power (CHP) is the use of a heat engine or power station to generate electricity and useful heat at the same time. Trigeneration or combined cooling, heat and power (CCHP) refers to the simultaneous generation of electricity and useful heating and cooling from the combustion of a fuel or a solar heat collector.
Cogeneration is more thermally efficient use of fuel than electricity generation alone. In separate production of electricity some energy must be rejected as waste heat, but in cogeneration this thermal energy is put to good use. CHP plants recover otherwise wasted thermal energy for heating (and possibly cooling).
CHP engines are typically used in the smaller scale applications (up to 1MW) whereas gas or steam turbine-powered generators may be used at larger scales
The Main Benefits of a Co/Tri-generation Systems, include
1. Savings on energy costs
2. Savings on Greenhouse gases
3. Back-up power to the site and/or Independence from the Grid