Wind Power at GE

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Wind Power at GE

• RPI Wind Energy

Tim Jayko GE July 15, 2009
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Background

• Graduated with BSEE from Union College in 2007
• Joined GE 2007 Edison Engineering Development
  Program
• Steam Turbine Controls
• Wind Power Systems
• Generator Design New Product Introduction
• Graduated Edison Program July 2009
• Off-program position with Wind Power Systems team
• Pursuing MSEE in Electric Power from Georgia Tech

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Agenda

• GE Overview
• Why Wind at GE?
• GE Product Line
• GE Wind Technology
• Discussion

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GE Overview

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GE Energy Infrastructure

• 07 revenue 30.7B

Employees 65,000

• Operating in 140 countries

Energy Services
Power Water
Oil Gas

• Power generation
• Renewables
• Gas Engines
• Nuclear
• Gasification
• Wastewater treatment
• Process chemicals

• Contractual agreements
• Smart Grid
• Field services
• Parts repairs
• Optimization technologies
• Plant management

• Onshore offshore natural gas
• Transportation
• Processing
• Pipeline inspection
• Subsea
• Extraction

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Wind Business Transition
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Where are we?
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Why Wind at GE?

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Because climbing wind turbines is fun!
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Electricity Usage 2000
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Renewable Energy Why Now?
Uncertainty driving diversification
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Fuel diversity critical
Efficient
Diverse
Gas Coal Nuclear Oil Geothermal Biomass Wind Sola
r Hydro

Emissions
Reliability
Efficiency
Driving cost of electricity down
Affordable, reliable environmentally
responsible
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Growing renewables demand
Global renewable installed capacity (GWs)

• Significant growth
  25 CAGR (04-07)
• 40 power capital spending
• Wind gt50 of growth
• Domestic, abundant,
  carbon-free
• Countries US states establishing renewable
  energy targets

240
208
182
160
Wind
All Other
04
05
06
07
'04
'05
'06
'07
Source REN21 2007 Preliminary GWEC
World requiring renewable energy solutions
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Utility Financial View for Power Gen
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GE Product Line

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Wind Components
Designed for Performance Reliability
MAIN SHAFT
GEARBOX
MAIN BEARING
SOFT BRAKE SYSTEM
PITCH
CONTROL
BLADES
COUPLING
TOWER
GENERATOR
ELECTRICAL SYSTEM
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GE Wind Turbine Product Line
115
Off-Shore
3.6sl
110

• GE 3.6 Offshore
• Arklow demonstration
• project

105
Multi MW
3.6s
2.5xl
100
95
2.3
Rotor diameter m
90
2.5
1.5 MW
85
GE 2.X Full power conversion Double bearing
xle
80
sle
sl
75
s
se
70
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GE 1.5 Over 5000 units worldwide
TC III 7.5 52.5
TC II 8.5 59.5
TC I 10 70
IEC Vave m/s Ve50 m/s
1st Gen
Extreme loads
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2nd Gen
Inactive
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GE 1.5 MW Technology

• A single 1.5MW turbine
• Can power 500 homes
• Total weight is 155 Tons
• Has blade sets that sweep the area of a football
  field
• Tip speed 200 MPH

370
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Based on 20-year lifetime
250
Environmentally Sound
100MW Wind Farm
Displacement of - 3 million tons of coal - 1.7
billion cubic meters of natural gas - 3.6 million
barrels of oil
Emission Reductions - 200,000 tons
CO2/yr Equivalent to 40,000 cars off the
road/yr 50,000 acres of planted forested land
Approximate dimensions
Over 10,000 GE turbines installed globally
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1.5 MW Turbine Data
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2.5 MW Turbine Data

• Differences from 1.5
• Greater power density
• Improved efficiency from PM Generator
• Double main-bearing

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GE Wind Technology

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WindRIDE-THRU

• Benefits
• Enhanced protection scheme
• Minimizes impact of grid events
• Power output remains readily available to grid
  operators
• Capable of withstanding zero voltage for 200 ms
  at point of common coupling

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WindCONTROL/WindFREE

• Benefits
• Maintains grid voltage during momentary voltage
  sags
• Weak grid
• Gusty wind conditions
• Rural areas
• Closed loop system with voltage controller
• Provides reactive power even when turbine is not
  operating

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WindBOOST

• Benefits
• 4 AEP increase
• Power output increase
• 1500 kW to 1600 kW
• Maximizes turbine capability with no hardware
  changes

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Maintenance Challenges

• Blade lightning strike
• Gearbox failures/changeouts
• General consumables/scheduled
• maintenance
• Replace generator brushes
• Grease bearings

Would you want to climb a quarter mile of ladders
everyday?
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Wind Turbine Siting
Highest recorded annual mean wind speed68 km/h
19 m/s
Highest recorded wind speed371 km/h 103 m/s

• Factors to Consider
• Site topography
• Site boundaries
• MW constraints
• Project costs
• Noise constraints

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Sweetwater, TX
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Wieringermeer, Netherlands
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Fenner, NY
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References

• North American WindPower Magazine
• Wind Energy Handbook Burton et al.
• www.gewind.com
• www.windpower.org

QUESTIONS??