The Use of Time Series Analysis to Estimate Flow Duration Curves to Assess Energy Potential for Low Head Hydro Redevelopment

by Peter J. Gabrielsen, Gruber, Kirshen & Associates, Brewerton, NY, USA,
Neal J. Gruber, Gruber, Kirshen & Associates, Brewerton, NY, USA,
William J. Gray, Gruber, Kirshen & Associates, Brewerton, NY, USA,
John C. LaChance, Gruber, Kirshen & Associates, Brewerton, NY, USA,



Document Type: Proceeding Paper

Part of: Water Power '87

Abstract: The proposed hydroelectric site location has a low head potential making discharge the primary energy production component. A flow duration curve (FDC) study was commenced to generate annual and monthly flow and energy estimates. This FDC study involved setting up a recording stage sensor at the redevelopment site and monitoring stage. Then time series analysis was used to transform twenty-four years of up stream data to site streamflow data. Monthly and annual FDCs were generated and used to evaluate the site's full energy potential. The energy estimates computed using time series analysis were less than those computed using basin area ratios. This was expected because of the different physical hydrology of the gaged and ungaged portions of the basin.

Subject Headings: Hydro power | Flow duration | Time series analysis | Head (fluid mechanics) | Curvature | Streamflow | Potential flow | Data analysis

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