ETU - Energy, Technology, Environment - German contractor develops cogeneration systems. General information about the technology and specifics about the company.

Kaltimex Energy Indonesia - Small power and co-generation plants up to 25MW. Diesel, hydro, or steam generation.

EPRI PEAC Corporation - Has links and information concerning home generation of power.

Cogen Europe - Extensive information about cogeneration (simultaneous production of heat and electricity): what it is, how it works, economics, European legislation, barriers to broader implementation, facts and figures about its use, and implications for global warming.

Clarke Energy - Supplier of gas powered generators for combined heat and power systems and other uses. Provides information about these and other energy technologies, as well as some installation case studies.

Krum International - Adsorption Chiller - Describes a machine that contains just silica gel and water, and produces chilled water from hot water (for cogeneration heat recovery). Low maintenance and energy needs.