[Corps of Engineers]  [Northwestern Division]  [NWD Water Management]  [Hydropower Evaluation]



Climate Change Action Plan


In 1993, President William Clinton's Climate Change Action Plan (CCAP) Initiative identified hydropower efficiency improvements as one of 44 actions intended to meet greenhouse gas (GHG) emission reduction goals by the year 2000. As the owner and operator of 75 major hydroelectric projects that account for 25 percent of all hydropower generation in the country, the Corps of Engineers plays a critical role in helping to achieve this objective for GHG emission reduction. Consequently, under Action #28 of the CCAP, the Corps was tasked with identifying potential generation improvements at its hydroelectric projects. This action required surveying the existing Corps hydroelectric projects to determine the best potential candidates for generation improvement. Once these opportunities were identified, the Department of Energy would issue requests for proposals from non-federal partners interested in investing at those projects.

To identify the best potential projects for generation improvement, a contract was signed with Acres International Corporation to develop computer models to conduct qualitative and quantitative screening of the 75 Corps hydroelectric projects. An additional contract, with Apogee Research, Incorporated, was used to evaluate the potential for non-Corps investment in hydropower improvements at Corps-owned facilities should opportunities be identified through the screening process.

The first screening model was developed for qualitative screening of the projects to determine their potential for further study. This model, known as the Matrix Model, was to be used to calculate the relative potential for generation improvement at the projects involved. 

The second screening model, known as the Corps Generation Analysis Program, was developed to perform more detailed quantitative screening of the potential projects identified by the Matrix Model. The CGAP model computes such parameters as: (1) changes in average annual energy for various project improvements, (2) daily discharge changes associated with potential changes in reservoir storage allocation or operation policies, (3) corresponding reductions in GHG emissions associated with these changes, and (4) economic benefits and costs used to determine the feasibility of proposed improvements in generation. 

The final phase of the study would be to conduct the qualitative and quantitative screening of the 75 projects using the models that had been developed. The final screening phase of the study is awaiting further funding.  


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Last Updated: 2 May 2000