Recover and Generate EnergyRecover and make use of wasted energy and integrate energy generation with infrastructure.
A Systems-Approach to Energy
There are numerous opportunities for recovering waste energy in local government operations. Waste heat can be recovered, and other forms of energy can be available, such as landfill gas. Energy recovery systems capture energy otherwise lost as an output and transfer it as a useful input back to the same or a different process: Taking a systems approach closes the energy loop as much as is feasible.
Strategies
» Recover heat energy that would otherwise be wasted (waste heat recovery, wastewater and sewer heat recovery)
» Capture and utilize gas produced by waste (landfill gas utilization)
» Capture potential energy in waste by converting it to useable fuel (biogas from anaerobic digestion)
» Release potential energy in waste through combustion (biomass, incineration, gasification)
» Recover heat energy from electricity production (cogeneration)
» Apply energy recovery and deliver low carbon energy to the community (district energy)
» Generate energy from infrastructure and processes that serve a different primary purpose (integrated renewables such as energy from municipal water supply)
This section addresses opportunities related to:
» Waste Heat Recovery (Wastewater Heat Recovery and Sewer Heat Recovery)
» Waste to Gas - Landfill Gas Utilization
» Waste to Gas - Biogas from Anaerobic Digestion
» Combustion of Dry Organic Waste (Combustion of Wood Waste, Incineration - Waste to Energy, and Gasification)
» Cogeneration
» District Energy
» Integrated Renewables
