MicroHydro - VECANvecan.net/wp-content/uploads/MicroHydro.pdf · by Little Green Hydro, LLC,...
Transcript of MicroHydro - VECANvecan.net/wp-content/uploads/MicroHydro.pdf · by Little Green Hydro, LLC,...
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MicroHydro
Sustainable, Low-Cost Renewable Energy Presentation for: The Vermont Energy & Climate Action Network Conference by Little Green Hydro, LLC, December 2012 www.LittleGreenHydro.com (802) 265-1004
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Highlights
How Does It Work? Local Action Opportunities MicroHydro: Right for Vermont
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What is MicroHydro?
Not Legacy, Large-Scale Hydro
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What is MicroHydro?
Not -
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What is MicroHydro?
This is Micro-Hydropower!
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What is MicroHydro? Definitions: see Wikepedia-
MicroHydro < 100kW The EcoHydro System
Typically < 5kW
Small Hydro
Conventional, Legacy Hydro > 5,000,000 Watts (5MW)
(Hoover Dam 2 gigaWatts, Three Gorges (China) 22 gigaWatts!)
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What is MicroHydro?
True Sustainable Hydro Ultra-Low Impact
No Dams or Impoundments No Significant Water Quality Impact No Adverse Aesthetic Impact Ultra-Light/Advanced Components
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Supports VT Goals 90% Renewable by 2050
Diverse, Small-Scale Renewables Environmentally-Sustainable Solutions
Non-Industrial Approaches Low-Impact Technologies
Environmentally Sustainable Economically Viable Technologically Sound Each EcoHydro System Can
Replace 2.7 Tons of Coal; Avoid 7.0 Tons of CO2
Union of Concerned Scientists: www.ucsusa.org/clean_energy/coalvswind/brief_coal.html
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How Does it Work?
The Intake Unit The Penstock/Hydraulics The Power Unit
Turbine/Generator, Electronics, Hydraulics Water Return 100% Natural Condition
The Energy Storage Unit
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How Does it Work?
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How Does it Work?
Intake Unit
Penstock Pipe
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How Does it Work?
Turbine House
Turbine Power Unit
Turbine
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How Does it Work? High-Head/Low Flow Design
High Head (Gravity) (elevation differential)
Very Low Flow Small stream or brook is perfect
CFS1
GPM
1
Intake Unit Placed in falling water Natural - boulders, ledges, etc.
1CFS=Cubic Feet per Second; GPM=Gallons Per Minute; 1 CFS=488 GPM
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How Does it Work? What about the Winter?
Our Terrain is Perfect! Yes, It Works in Vermont Winters!
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MicroHydro Example USDA/REAP Farm Project
Large Central Vermont Dairy Farm Goals
Produce/Use Farm-Based Renewable Energy Achieve Low Cost, Fast ROI Rapid, Simple Installation Process
Actual Start Nov 15 Planned Completion Dec 23 Status: On Plan
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MicroHydro Example USDA/REAP Farm Project
Resource Profile
40 GPM Field Drainage Flow EcoHydro System Configuration
25 kWhr Power Unit -
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MicroHydro - Solar PV Economic Comparison
EcoHydro System Cost/kWhr Produced ~ $0.14 Capital Cost 25kWhr system ~$25,000
Solar PV Cost/kWhr Produced ~ $0.641
Capital Cost - 25kWhr system 4.5 hrs avg insolation, requires 5.5kW system Vermont installed cost @$8/watt ~$44,000
1www.solarbuzz.com/node/244
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MicroHydro - Solar PV Compatibility
MicroHydro / Solar PV Hybrid System Highly Compatible Technologies
Shared core electronics Commonality behind the meter
Seasonal Synergies Solar PV output best in Summer MicroHydro output best Fall through Spring
Benefits Shared Costs Enhanced Reliability Grid Supportive and Stabilizing
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Taking Action Identify Opportunities
Energy Efficiency is #1 Larger Power Uses
Farms Businesses/Nonprofits Schools Municipal Buildings
Residences
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Taking Action Assess Feasibility
Resources Water Flow
Brooks, Small Rivers
Hydraulic Head Elevation Differential
Delta: High->Low along Watercourse
Resource Assessment (S/W) Tools Prospecting, Qualification, Configuration
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Taking Action Assess Feasibility
Logistics Ownership Property Boundaries Distances
Increased Distance Increases Capital Requirements Decreases System Efficiency
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Taking Action Look Around!
Examples of Viable Watercourses
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Vermont Can Lead
Environmental Leadership Independence Culture Thousands of Potential Sites
Farms, businesses, small municipalities
Can Become The MicroHydro Center!
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Summary
Is Not Is Sustainable!
Environmentally, Economically, Culturally
Small, non-industrial-scale, distributed MicroHydro/Solar PV Hybrid
Is Ready to Help Us Today!
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Public Policy Regulation Blocks MicroHydro
Watercourse Side ANR, USF&W, EPA401
Grid-Side FERC, PSB, PURPA + all above
Conflicting/Overlapping Regulations Costly Case-By-Case Approach
Varying/Vague Requirements No Process, Timelines, Accountability
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Summary Closing
Thank You!