Sh 3045 Airfoil



September30, 2000

This Saturday morning was the day. The crane was coming in and we were going to put the bird up on the tower. Here I am, the proud father standing next to my baby.

Wind Generator: Enertech 1800, 1,800 watt wild AC induction generator

Enertech Controller:

Starts generator at appropriate wind speed lightning protection included

Enertech Controller:

Starts generator at appropriate wind speed lightning protection included


Measures wind speed

Indicator Light:

Indicates generator operation

Dick Anderson's Wind System

Utility: To and from Alliant Energy Company

KWH Meter:

Bidirectional at 240 VAC


Measures wind speed

Indicator Light:

Indicates generator operation

Chassis grounds not shown

Clock Timer: Records generator operating time

To workshop circuits

KWH Meter:

Wind KWH generated

Clock Timer: Records generator operating time

Breaker: 30 amp

AC Mains Panel: To 120 VAC loads


60 amp, 240 volt

KWH Meter:

Bidirectional at 240 VAC

October 1, 2000

I decided to wire in a small light bulb and electric clock to the mercury solenoid in the control box. When the light goes on, I know the unit is running. The clock keeps track of the total time the generator runs. I check it every day, and by recording the hours of run time and the KWHs produced, I can see how efficient my production is. Later I'll use this data to fine tune the startup and shutoff wind speeds for the system.

October 2, 2000

The safety factor cannot be overemphasized when working on and around these things. I had a safety helmet and belt, but I also bought a rope grab and line with a shock cord for US$300. This device slides freely up and down a rope parallel to the tower. If I fall, the rope grab device locks onto the rope and catches me. I'm not looking forward to putting this thing to the test, but if it happens, I'll still be able to write about it.

Enertech System Fact Sheet



Enertech 1800

Fixed pitch, downwind, 60 Hz AC, 120 V


Heavy-duty 120 V induction motor, 1,725 rpm


13 feet diameter, 3 fixed-pitch blades


265 pounds

Tower size

55 feet, 10 x 10 foot base, 2.5 by 1/8 inch angle iron legs

Tower leg anchors

6 yards concrete,18,000 pounds,

Horizontal thrust

900 pounds at 120 mph

Rated output

1,800 W at 24 mph, or 2 two-slice toasters


250 foot (one way) #6 copper #18 shielded signal wire


30 A circuit breaker

Wind speed control



13 mph


9 mph


40 mph, via electrically controlled hydraulic brake

Site analysis

70 days/yr., 10+ mph average wind speed 140 days/yr., 8 mph average wind speed

Energy production

Estimate of US$58 per year at $0.07 per KWH

Bottom line

Trust me when I say that it is easier to conserve energy than to produce energy.

The unit has now run for over 100 hours and all is well. I did have one scare though. It ran for about eight hours the first day, and I thought it would be a good idea to check it right away. As I reached the top of the tower, I saw a red-colored fluid on the mast and streaks of it on the nice white shell. My heart sank.

The guys at the local coffee shop wanted to know why I had put up such a big fan, and would it be cooling off the neighbors this summer? Every day when I get my coffee and see it running, I just smile and think to myself, "If only they knew. If only they knew that it takes a 15 mph wind blowing for about six hours to make enough electricity to pay for my twenty-five cent coffee. If only they knew..."


Dick Anderson, 11672 Center Hill Rd., Darlington, WI 53530 608-776-4603 [email protected]

Mick Sagrillo, Sagrillo Power & Light, E3971 Bluebird Rd., Forestville, WI 54213 Phone/Fax: 920-837-7523 [email protected]

Midwest Renewable Energy Association (MREA), 7558 Deer Rd., Custer, WI 54423 • 715-592-6595 Fax: 715-592-6596 • [email protected]

What could be wrong? Was it a disaster? Would this be the day that I dove off the tower in despair and gave my safety rope grab a true test? Not today. The problem was a blown O-ring on the fill plug of the hydraulic brake system. A big mess, but easily corrected, and a lesson learned about how O-rings are supposed to fit. I did check the tower and unit again at 100 hours, and now do it about every three months. I like to climb.

Living next door to the local high school and junior high school has generated a lot of interest. Several classes have walked over and asked a lot of questions. I have a fact sheet about the unit that answers many of the usual questions people have. Having the first wind generator in Darlington has caused a bit of a stir. The school buses pass right by it every day and the teachers I know tell me that the kids are keeping a close eye on it. But soon it will be just like another electric pole with a transformer on it.

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1GGG Watt Home Wind Turbine


► 5-Year Warranty (Industry's Longest)

► Maintenance Free Design

► Excellent Low Wind Performance

► Nearly Silent Operation

► Three High-Strength PowerFlex Fiberglass Blades, SH 3045 Airfoil*

► Neodymium Super-Magnet Alternator

► AutoFurl "No Worry" Storm Protection

► Fail-Safe Design, No Dump Load Required for Structural Safety

► PowerCenter Multi-function Controller

► OptiCharge Regulation for Extended Battery Life

► Easy Installation with BWC Tilt-up Towers

*Patent Pending

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