|
Annual Average Wind Speed
(AWS) - is the average of all instantaneous wind speeds for a location over
the course of a year.
Annual energy output (AEO)
- is the total energy produced by a wind turbine over the course of a year.
Anemometer - is a device
used to measure wind speed.
Cut-in wind speed - is
the lowest wind speed (at hub height) at which the turbine starts to produce
power.
Current -is the rate at
which electricity flows through a conductor; measured in amps (A).
Direct current -( DC )
electric current which flows in only one direction in a wire. Our turbines and
batteries are DC.
Free standing tower -is
a tower that does not use external supports, such as guy wires.
Guy anchor - is a
foundation designed for guy wire connection.
Guy cable - is a cable
or wire used as a tension support between a guy anchor and a tower.
Guyed tower - is a tower
that uses external guy supports
Guyed tower - is a tower
that uses external guy supports
Hub -is the fixture for
attaching the blades or blade assembly of a HAWT to the rotor shaft.
Hybrid System - is a
term used to describe an alternative energy system which uses multiple charging
sources such as wind, micro hydro generators.
Mean wind speed - is the
statistical mean of the instantaneous value of the wind speed averaged over a
given time period which
can vary from a few seconds to many years.
Power curve - is a graph
that depicts the power output of a wind turbine as a function of wind speed.
Power output - is the
amount of power produced by a wind turbine at a given speed.
Rotor - is the set of
blades of the wind turbine including the hub.
Rated wind speed - is
the specified wind speed at which a wind turbine's rated power is achieved.
Rayleigh wind speed
distribution - is a statistical curve whose shape approximates the actual
shape of a wind speed distribution curve. It is used as a standardized
distribution curve to estimate the energy production performance of a wind
turbine.
Rotor speed - is the
rate of rotation of a wind turbine rotor about its axis.
Tower - is the structure
of a wind energy system that supports the rotor and power train, etc., above the
Voltage - is a measure
of the electric potential difference between two points; usually
expressed as volts (V). ground.
| 
