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Evaluation of Peaking and Ponding Strategies at the St. Marys River Hydropower Plants
- Mark Lorie;
- Investigated the relationship between Lake Superior monthly outflows and peaking and ponding operations conducted by St. Marys River hydropower plants through modeling of peak and off‐peak flows, hydropower energy, and the value of energy produced; modeling the impacts of peak and off‐peak flows on commercial shipping; and formulating and evaluating peaking strategies, including changing the assumptions about how peaking operations work, and testing two new ideas, water banking and increased hydropower capacity. Results suggest peaking operations benefit both power companies and society by producing more hydropower when demand and prices are highest, but results were relatively insignificant compared to monthly regulation impacts. Peaking was also found to have little impact on commercial shipping. However, the greater the spread between peak and off‐peak prices, the more valuable peaking operations are, and so an adaptive approach that adjusts to changing energy prices may be useful.
- Additional Data and Information
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- Supporting Content
- Main Topics
- - Lake Superior Regulation
- Questions We Asked
- - Can a regulation plan be designed to perform better than Plan 1977A?
- - What constitutes improved plan performance?
- - Hydropower Evaluation