Notes
Outline
Small Wind Systems for
Village Power:  An Update
Village Power ’98
World Bank
Washington, DC     Oct. 4-6, 1998
Michael Bergey
Bergey Windpower Co.
< mbergey@bergey.com >
Modern Small Wind Turbines:
High Tech, High Reliability, Low Maintenance
50 W - 50 kW Capacity
Aerospace Technology
Mechanically Simple:  3 Moving Parts
No Regular Maintenance Required
Low Costs:  $ 1 - 3 / Watt
Proven:  ~ 200,000 Installed, Over a Billion Operational Hours
Modern Small Wind Turbines:
A Least-Cost Option for Small Power
Existing Wind Maps
The Curse of Meteorological Data
Sheltered Wind Sensors
 •  Below Trees, Buildings, Etc.
 •  Roof Mounted
Worn Bearings, No Calibrations, Etc.
“Disappearing Wind”
Power ~ (Velocity)3 ; So 20% Error in Wind Speeds Means ~50% Error in Available Energy
Finding the True Wind Resource
NREL Wind Mapping with Additional Data Sources:  Satellite, Ex-Military Data, Etc.
Low Cost Wind Loggers Specifically Designed for Small Wind Applications
Small Wind Applications
Industry Trends
China Rural Electrification
World’s Largest Market for Small Wind
Chile Region X Electrification
Wind/Diesel Favored Over Diesel-Only
Advanced Small Wind Turbines
Technology on the Move
Request: Let the Markets Work