Glossary

A >Active power
Air Density
Airfoil
Anemometer
Annual Average Wind Speed
Array Efficiency
Availability Factor
Availability factor

B >Balance of Plant (BOP)
Base
Bernoulli's principle
Blade
Bus Bar Cost

C >Capacity (gross)
Capacity Factor
Carbon dioxide (CO2)
CDM (Clean development Mechanism)
Climate change
Control Panel
Coriolis Force

D >Distributed generation
Drive Train

E >Eddy Viscosity
Electrical Power Network
Electricity Generation
Environmental conditions
Extreme/survival Wind speed

F >Feed-in Tariff
Frequency Distribution

G >Gear Box
Generator
Geostrophic Wind

H >Horizontal Axis wind Turbine
Hub

I >Installation

L >Large Area Wind Mapping
Levelised Annual Cost
LIDAR

M >Machine Availability
Maximum Power
Mean Wind Speed
Mechanical brake Disc

N >Nacelle
Normal Shutdown

O >Operating Limits
Operation & Maintenance Cost

P >P50, P75 & P90
Planetary Boundary Layer
PLF
Power Curve
Power Law Index
Power Rating
Probability of Exceedence
Protection System

R >Rated Wind Speed
Reference Wind Speed (Vref)
Renewable Energy Certificate
Renewable Portfolio Obligation
Rotor
Rotor Speed

S >Satellite Remote Sensing
Shaft
Shape Parameter
SODAR
Speed-up
Standard Deviation
Surface Roughness
Swept Area

T >Turbulence Intensity

V >VAWT

W >Weibull Distribution
Wind Power Density
Wind Speed
Wind Turbine Tower
Wind Velocity
Windfarm

Y >Yaw Misalignment
Yawing