Heat Recovery

Heat Recovery Fact Sheet            

 Heat Recovery Case Studies:  Point Lay Heat Recovery Project  Hoonah Heat Recovery Project

Diesel generation accounts for 94% of power production in the 181 rural communities that receive Power Cost Equalization assistance. Measures that improve the efficiency of diesel generation offer substantial savings in a wide set of situations. (See the Alaska Rural Energy Plan for detail.)

AEA's Alternative Energy and Energy Efficiency program is assisting 16 communities throughout the state in upgrading to high-efficiency diesel generators and automated switchgear and developing systems that supply recovered “waste” heat to community facilities.  AEA's construction program routinely incorporates these efficiency measures in new power systems.  Diesel efficiency measures funded under AEA's Denali Commission-funded Energy Cost Reduction program are estimated to save $10.2 million, chiefly in diesel fuel costs, over the lives of the projects. Installed cost of the projects totals $5.5 million (53% grant, 47% local share).

AEA is a member of the state and federally-funded Northwest Combined Heat and Power(CHP) Application Center , a state and federally supported effort that provides technical assistance for heat recovery, district heating, and waste heat-to-power in Alaska, Idaho, Montana, Oregon and Washington.

With funding from the State of Alaska and United States Environmental Protection Agency the Alaska Center for Energy and Power is evaluating opportunities to utilize commercial equipment to make use of waste heat in diesel generation to make additional power and increase overall generation efficiency. Here is the first report from this study.

AEA RSA 0925: Task One Final Report Aug 25, 2009 - Test Evaluation of Organic Rankine Cycle Engines Operating on Recovered Heat from Diesel Engine Exhaust