District energy systems operate by producing thermal energy in the form of steam, hot water or chilled water for distribution through a network of insulated pipes.
District energy systems, which can include an individual heating plant, use one or more types of fuel and can consist of a combination of different heat sources and technologies.
Although traditional sources of fuel - such as natural gas and oil - are most common, alternative and renewable sources (solar power, geothermal energy, biogas, biomass, heat rejected from industrial and municipal operations, and fuel-cell technologies) are now being used in plants across Canada.
Video: District Energy: Now's the Time
Educational film detailing district energy - what it is, how it works, benefits and case studies.
Produced by International District Energy Association - http://www.districtenergy.org/
Canadian District Energy Association - http://cdea.ca/
International District Energy Association - http://www.districtenergy.org/
Combined Heat and Power Association - http://www.chpa.co.uk/