Hydroelectric Development on Umbata Falls
Scenic Flow Adaptive Management Plan

Decreased Flow Option


Less flow over the falls would result in more water for power generation. Increased power generation would result in an increase in renewable energy, emission reductions and an enhanced revenue stream and increased ability to enact community projects for the Ojibways of the Pic River First Nation. The aesthetic quality my be affected. Two options are presented for comparison, being the present ecological flow (1 m3/s) and 3.0 m3/s (half the combined scenic and ecological flow). Photos of the falls at these flows are shown on the right.

Compared to the base case situation, the less flow options increase the funding available for community projects and allow a number of high priority projects (ie water treatment plant) to be initiated at an earlier date.

It should be noted that during periods of low flow, the amount of flow that could be released over the falls is limited to the actual flow in the river.

Increased Flow Option

More flow over the falls would result in a more scenic experience for visitors to the site, but would reduce the amount of flow available for power generation. This would result in a decrease in renewable energy production, decreased emission reductions and reduce the revenue stream/ability to enact community projects for the Ojibways of the Pic River First Nation.

Two options are presented for comparison, being a flow of 12 m3/s and 24-25 m3/s (twice and four times the base case flow). Photos of the falls at these flows are shown on the right. Compared to the base case situation, the more flow options reduce the number of community projects that can be undertaken and allow only the highest priority projects to be undertaken.

It should be noted that during periods of low flow, the amount of flow that could be released over the falls is limited to the actual flow in the river.

Options

Next: Crest Modifications or Variable Flow Timing

Back: Base Case Situation

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Umbata Hydroelectric Project
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