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Water Power Peer Review

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Water Power Peer Review Paul T. Jacobson Assessment of the Environmental Effects of Hydrokinetic Turbines on Fish: Desktop and Laboratory Flume Studies – PowerPoint PPT presentation

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Title: Water Power Peer Review


1
Water Power Peer Review
  • Paul T. Jacobson
  • Assessment of the Environmental Effects of
    Hydrokinetic Turbines on Fish Desktop and
    Laboratory Flume Studies
  • Electric Power Research Institute
  • (410) 489-3675 pjacobson_at_epri.com
  • November 3, 2011

2
Purpose, Objectives, Integration
  • Objective determine injury, survival rates and
    behavioral effects for fish passing through
    hydrokinetic turbines.
  • As the number of experimental and permanent field
    applications increase, so will concerns with the
    effects of installation and operation on aquatic
    organisms.
  • Direct measurement of injury and survival rates
    in the field is technically challenging.
  • Laboratory flume testing allows for highly
    controlled evaluations with the ability to
    closely monitor fish movements and behavior with
    underwater video systems and advanced radio
    telemetry techniques, and to recover and examine
    all fish that have passed through a turbine.

3
Purpose, Objectives, Integration
  • The Wind and Water Power Program supports
    research and development to identify and address
    the technical and nontechnical barriers to
    achieving the potential of advanced water power
    technologies.
  • Natural resource management agencies and other
    stakeholders express concerns regarding potential
    adverse effects of hydrokinetic turbine
    deployments on fish. Uncertainty regarding the
    significance of this issue adds uncertainty,
    cost, and time to permitting and licensing
    activities.
  • This project constitutes seminal work in
    hydrokinetic turbine-fish interactions, and
    provides substantial information to reduce the
    range of uncertainty and inform permitting and
    licensing decisions.

4
Technical Approach
  • The project assessed potential for adverse
    turbine-fish interactions by
  • conducting a review of existing information on
    injury mechanisms associated with fish passage
    through conventional hydro turbines and determine
    its relevance and applicability to fish passage
    through hydrokinetic turbines
  • developing theoretical models for the probability
    of blade strike and mortality for various
    hydrokinetic turbine designs and
  • conducting flume studies with three turbine
    designs and several species and size classes of
    fish to estimate injury and survival rates and
    describe fish behavior in the vicinity of
    operating turbines.

5
Technical Approach
  • The flume studies are the first to empirically
    quantify fish interactions with hydrokinetic
    turbines.
  • Fish exhibited a propensity to avoid passing
    through the area swept by the turbine blades
    unless physically constrained to pass by that
    route.

6
Plan, Schedule, Budget
  • Schedule
  • Initiation date 1/1/2010
  • Planned completion date October 2011
  • Public presentations of project results
    (Hydrovision International, July, 2011 American
    Fisheries Society Annual Meeting, September,
    2011 others) DOE-sponsored webcast presentation
    of project results, August 29, 2011 Internal and
    external technical and editorial reviews
    completed October, 2011.
  • Budget
  • Budget fully expended

Budget History Budget History Budget History Budget History Budget History Budget History
FY2009 FY2009 FY2010 FY2010 FY2011 FY2011
DOE Cost-share DOE Cost-share DOE Cost-share
401,048 35,000 45,951 0
7
Accomplishments and Results
  • Evaluation of conventional hydropower literature
    indicates strike is the predominant source of
    potential injury and mortality to fish passing
    through hydrokinetic turbines.
  • Theoretical modeling indicated decreasing passage
    survival with increasing fish size and approach
    velocity for one turbine design and 100 survival
    across all fish sizes and approach velocities
    modeled for another turbine. The flume studies
    are the first to empirically quantify fish
    interactions with hydrokinetic turbines. Fish
    exhibited a propensity to avoid passing through
    the area swept by the turbine blades unless
    physically constrained to pass by that route.
    Overall, survival exceeded 98 under all test
    conditions.

8
Accomplishments and Results
  • The flume studies are the first to empirically
    quantify fish interactions with hydrokinetic
    turbines.
  • Fish exhibited a propensity to avoid passing
    through the area swept by the turbine blades
    unless physically constrained to pass by that
    route.
  • Overall, survival exceeded 98 under all test
    conditions.

9
Challenges to Date
  • Flume tests in the Alden flume sought to quantify
    injury and survival rates given passage through
    the area swept by the turbine blades
  • Fish exhibited a propensity to avoid the blade
    sweep area
  • Additional measures were taken in attempt to
    force fish through the turbine
  • release immediately in front of unducted turbine
  • netting to prevent avoidance of ducted turbine

10
Next Steps
  • Dissemination of project results
  • Future research opportunities
  • Enhanced observation and quantification of
    turbine avoidance
  • Injury and survival experiments under additional
    test conditions
  • temperature
  • ambient light
  • species, sizes, life stages
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