1. Sailcloth turbines for water pumping, Lasithi plateau, Crete

2. Contours of
mean annual
wind speeds
in Europe.
UK (and
especially
Scotland)
have the
best resources

3. Vestas 75 kW and 100 kW turbines at
Altamont Pass, California, early 1980’s

4. Nacelle layout of typical horizontal-axis turbine
Gearbox
Anemometer
Disc brake
Generator
Yaw bearing
and drive gear

5. Maintenance of
wind turbines
will demand
special skills;
access is more
problematic
for smaller
machines

6. 500 kW development
of 150 kW turbine
with fixed-geometry
blading, on test site
at Carmarthen Bay

7. Project EOLE 4 MW vertical-axis prototype, Quebec.
Tower height 110m, catenary-profile blades

8. Howden 330 kW production machines in California

9. Turbines at
Vindeby wind
farm:
Bonus 450 kW
machines with
full-span pitch
control

10. Yttre Stengrund
wind farm:
NEG Micon
turbines of
2 MW rated
power output;
rotor diameter
72m

11. Modern water
pumping turbine
with metal blades,
Kenya.
Mechanical drive
from turbine rotor
shaft to vertical
pump actuating
rod

12. Renewable Devices ‘Swift’ turbine 2.1 m rotor diameter, rated output 1.5 kW

14. Windsave roof-mounted turbines; 1
Windsave roof-mounted turbines; 1.75 m rotor diameter, rated power 1 kW