Cogeneration, also known as Combined Heat and Power (CHP), is the simultaneous generation of electricity and some form of useful thermal energy from a single fuel source.

• The fuel source can be natural gas or biogas.

• Cogeneration is not a specific technology but an application of technologies to meet an energy user's needs.

• Cogeneration systems can achieve total (electricity plus heat) conversion efficiencies of 90% — a dramatic improvement over the efficiency of separate heat and power.

• Since Cogeneration is highly efficient, it reduces traditional air pollutants and carbon dioxide, the leading greenhouse gas associated with climate change.