Wind Generator Comparisons to the "WECo Spirit"

 
Manufacturers >
Proven WECo Spirit Bergey XL-1 SkyStream Kyocera 200
Starts Turning
6.0 mph 1.8 mph 5.6 mph 6.0 mph Solar Panel
Cut-in Wind Speed
8.0 mph 3.0 mph 18.0 mph 8.0 mph 10am
Rated Wind Speed
22.5 mph 16.0 mph 25.0 mph 20.0 mph Full Sun 10-2
Rated Output
600 watts 1000 watts 1000 watts 1800 watts 200 watts
Annual kWh at 12mph
1300 5800 1800 4800 18
Rotor Diameter
8.4 feet 9.0 feet 8.2 feet 12.0 feet 39" x 56"
Number of Blades
3 4 3 3 n/a
Wind Blade Material
Polypropylene Aluminum Carbon Fiber Carbon Fiber n/a
Generator Type ^
PM /3 / AC PM /3 / AC PM /3 / AC PM /3 / AC Glass Panel
Battery Voltage
12, 24, 48 12 12, 24, 48 120ac / 60Hz 24 volts
Battery or Grid
Battery Battery / Grid Battery / Grid Grid Grid
Overspeed Braking
Blade Furl Folding Tail Blade Furl Electronic Stall n/a
Installed Weight
154 pounds 98 pounds 75 pounds 170 pounds 40.7 pounds
Controls Provided
Controller Controller Controller Controller/Inverter None
Blade Noise
Quiet Silent Quiet Quiet n/a
Minimum Pole Height
35 feet 30 feet 35 feet 33 feet Roof Mount
Maintenance
Semi-Annual None Semi-Annual Annual Annual
Cost in US Dollars *
$3450 $3797 $2150 $6500 $1054
Cost per Watt *
$2.65 $0.65 $1.19 $1.35 $58.56
Warranty Parts & Labor
2 year Parts 5 year Parts 5 year Parts 5 year Parts 1 year Parts

 

 


^ Generator Type: PM= Permanent Magnet / 3=3 Phase / AC-Current Type.
* Cost per Watt produced: Is figured by dividing $3797 by 5800 annual kWh = $0.65.
* Cost in US Dollars: Is for the wind generator and controls provided only.

> Above Comparisons supplied by the competitive manufacturers websites below:
   PROVEN WINDPOWER website: provenenergy.co.uk
   BERGEY WIND TURBINES website: bergey.com
   SKY STREAM 3.7 website: skystreamenergy.com
   KYOCERA SOLAR website: kyocerasolar.com