Using Waste Heat to Generate Electricity, 2008 Engineering, Pulping and Environmental Conference

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This paper describes the cogeneration process at two recently constructed facilities in Colorado, which produces approximately 30% of required electric power. Topics covered include project background, system concept and operation, economic benefits, carbon footprint implications and lessons learned.

This process recovers waste thermal energy through a turbine generator system and produces approximately 1 MW of electric power. This electricity is used on-site, thus reducing power purchases.

One or both of these plants are expected to receive green energy credits based on their qualification as “recycled energy.” The presentation will provide an update on the application process and credit valuation (which is currently being determined as of this writing).

Recovering waste heat and using it to generate power onsite offers the potential for some facilities to increase their energy utilization efficiency. This can provide both economic benefits in the form of lowered energy input costs, and environmental benefits resulting in less energy being consumed from the electric grid. Some plants are better candidates for this technology than others. Thus this presentation will also highlight key considerations for plant owners to evaluate prior to incorporating this process application into their new or existing plant.