Micro and Mini Turbine Technology - Distributed generation
Transcript of Micro and Mini Turbine Technology - Distributed generation
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Micro and Mini TurbineTechnology
E.J. [email protected]
West Coast EnergyManagement Congress
June 21, 2000
…business solutions for energy markets
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Overview
1. Why All the Fuss About Distributed Generation (DG)?2. Compare Evolving DG Technologies3. Summarize Micro and Mini Turbine Technologies4. Importance of Air Emissions5. Speculate About Future Turbine Users, Technologies,
and the Marketplace
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Rising Demand for Electricity
5060708090
100110120130140
1880
1890
1900
1910
1920
1930
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1950
1960
1970
1980
1990
2000
E/G
DP
(in
dex
1900
=100
)
0
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Ele
ctric
ity F
ract
ion
(%)
E/GDP Ratio Electricity FractionSource: Electric Power Research Institute
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U.S. Peak Summer ElectricSupply and Demand
Net Capacity
Peak Load
300
400
500
600
700
800
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
2000
1000
MW
Surplus
Source: Energy Information Administration
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CA Electric Consumption
0
100
200
300
400
500
600
700
800
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
Tri
llio
n B
tu Total
Commercial
Residential
Industrial
Source: EIA State Energy Data Report 1995
+15%
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Fuels Used in CAto Generate Electricity
0
200
400
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1000
1200
1400
1600
1800
1985
1986
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1990
1991
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1994
1995
Tri
llio
n B
tu
Total
Gas
Hydro
Nuclear
Geothermal
Oil
Source: EIA State Energy Data Report 1995
-11%
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Generation Capital CostBy Technology (98$)
0
1000
2000
3000
4000
5000
1990 1995 2000 2005 2010
Inst
alle
d C
ost (
$/kW
)
Photovoltaic
Fuel Cell
Wind
Coal Plant
Gas Recip Engine
Microturbine
Small Gas Turbine
Gas-FiredCombined Cycle
Source: Resource Dynamics Corporation
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DG Capital Costs($/kW)
Technology 1990 2000 2010Diesel Engine 1,000 400 350
Micro Turbine 800 700 400
Mini Turbine 700 550 375
Fuel Cell 4,500 2,000 800
Photovoltaic 5,200 4,000 1,500
Wind 2,000 1,300 1,100
Source: Resource Dynamics Corporation
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DG TechnologyCharacteristics
Technology Diesel Engine Micro Turbine Mini Turbine Fuel Cell
Size (MW) 0.03 - 10 0.03 -0.2 0.5 - 10 0.1 - 3
O&M ($/kWh) 0.005 - 0.015 0.004-0.010 0.003-0.008 0.002-0.015
% Electric Efficiency 36-43 18-32 21-40 40-57
Usable CHP Temp(Degrees F)
Diesel 180-190,Other IC 400-500
400-650 500-1,100 140-700
% Overall Efficiency 82 82 85 82
Availability 90-97% 90-98% 90-98% >95%
Footprint (sq ft/kW) 0.25 0.25 0.30 0.90
Source: Resource Dynamics Corporation
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DG Commercial Status
Technology Diesel Engine Micro Turbine Mini Turbine Fuel Cell
CommercialAvailability
Well established Evolving industry Well established Well established
Fuel Type Diesel, propane,NG, oil
Propane, NG,distillate
Propane, NG,distillate
Hydrogen,propane
Noise Moderate to high(requires
enclosure)
Moderate(enclosure
supplied with unit)
Moderate(enclosure
supplied with unit)
Low (noenclosurerequired)
Typical DutyCycles
Baseload Peaking,intermediate,
baseload
Baseload,intermediate,
peaking
Baseload
Likely Users Next5 Years
Industrial,commercial,
UDC, residential
Industrial,commercial, UDC
Industrial, UDC,commercial
Residential,commercial,
industrial, UDC
Source: Resource Dynamics Corporation
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DG for CombinedHeat and Power
Technology Application for CHPDiesel Engines Moderate cogeneration use
Micro Turbines Limited cogeneration applicationsdue to lower heat production
Mini Turbines Excellent for cogeneration
Fuel Cells Limited use, except for PEM inspecial cases
Source: Resource Dynamics Corporation
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Turbine Pros and Cons
Technology Pros Cons
MicroTurbines
♦ Small and portable
♦ Potentially low capitalcost
♦ Low power-only efficiency
♦ Limited cogenerationapplications
MiniTurbines
♦ Wide range of sizesover 1 MW
♦ Quick start-up
♦ Excellent forcogeneration
♦ Low but improvingefficiency
♦ Emission levels requiremitigation
Source: Resource Dynamics Corporation
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Some Micro and MiniTurbine Providers
Technology Manufacturers/ Suppliers
MicroTurbines
AlliedSignalCapstoneElliott MagneTekGRI/Northern ResearchTeledyne/Ryan
MiniTurbines
AlliedSignalAllisonDresser-RandEuropean Gas TurbinesGeneral ElectricGreenwich TurbineKawasakiSolar TurbinesTurbomeca
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Micro/Mini TurbineTechnology Summary
• Micro Turbine industry less mature than MiniTurbine industry
• Low efficiency unless used with CHP• Micro Turbines better for peaking• Mini Turbines better for baseload and CHP
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Micro/Mini TurbineMarket Summary
• Near grid-competitive, and falling, capital costs• Competitive O&M costs• Likely to be adopted by industrial and commercial
end-users, especially those needing high reliability• Face regulatory uncertainty• Acceptable emission levels with proper controls
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Percent of EmissionsGenerated by U.S.Electric Industry
Source: U.S. EPA, National Acid Precipitation Assessment Program
Pollutant 1994 1995 1996CO 0.3 0.4 0.4Particulates 0.6 1.0 0.9NOX 33.0 26.7 25.8SOX 70.4 65.1 65.9
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CA Power Emissions
Pollutant Total Stationary Sources Electric Utilities CogenerationCO 348 36 36PM10 211 5 3NOX 633 69 36SOX 138 8 2
Source: California Air Resources Board, 1998
Percent of TotalPollutant Electric Utilities CogenerationCO 10.3 10.3PM10 2.4 1.4NOX 10.9 5.7SOX 5.8 1.4
Tons per Day
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Air Emissions by Technology(lb/kWh)
Sources: CADER and Resource Dynamics Corporation based on manufacturers’ specifications
Generation Technology CO PM10 NOX SOX
Distributed GenerationRecip engines .004-.006 .0002 .0015-.037Miniturbines .01-.05 .0001-.0002 .007 -.009 .0003Microturbines .003-.050 .0001-.0002 .0005-.0050 .0003Fuel cells .00001 0 .000002 - .000060 0Photovoltaic 0 0 0 0Wind turbines 0 0 0 0
Central StationGas steam .00009 .00001 .00003-.00010 0New coal plant .0001 .002 .002-.004Geothermal 0 0 0 0Hydropower 0 0 0 0Nuclear 0 0 0 0
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Percent of ElectricityGenerated On-Site
SIC Industry U.S.
20 Food products 10.824 Lumber products 9.126 Paper products 50.528 Chemicals 23.829 Petroleum refining 29.335 Electronics/computers 0.5
Source: Energy Information Administration, 1994
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Future of TurbineTechnology
• Technology improves - efficiency, durability, andreliability
• Acceptable emission levels through controllingtechnologies
• Lower costs through mass production• Global market• Overseas technology shakedown/improvement
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Future of TurbineMarketplace
• Diminishing DG regulatory uncertainty• Increasing capacity shortages reduce grid reliability• Turbine industry consolidation• Key investments by large players• Major energy end-users apply turbines
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For MoreInformation
• www.dpc.org• www.cader.org• www.distributed-generation.com