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Installations

 

Mozambique Coast - Vilanculos - Golden Sands Beach Resort

Equipment Installed:
AWP3.6 – 48V, 13.6 Meter tilt up tower, 376Ahr 48V Battery Bank, 3KW Sine Wave Inverter.

Background:
Tony Roberts selected the AWP3.6 to provide power for his eco friendly tourist resort. The system was installed at the beginning of the project into a shipping container and provided power for the construction. The 3KW inverter provides 220v 50Hz power for water pumping, power tools lighting and communications.

Adjusting the Guy tensions During lifting

The site looks out onto the Bazaruto Island Archipelego

Adjusting the Guy tensions During lifting The site looks out onto the Bazaruto Island Archipelego

 

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Namibia - Namib Desert - Ranch power system

Equipment Installed:
AWP3.6 - 36V 8M tilt up tower

Background:
The ranch is situated in a beautiful area of the Namib in western Namibia. The ranch operates a busy B&B for tourists and requires 24 hour power for their convenience, but is 150 Km from the nearest grid supply. AWP dealer Edward Drotsche of Hybrid Power Systems installed the AWP3.6 to augment the PV and diesel generator charging system. The turbine has operated since 1999 with no faults

This ranch is a long way from anywhere.

This ranch is a long way from anywhere.

 

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South Africa - Cape Point Nature Reserve

Equipment Installed:
AWP3.6 –24V, 8 meter tilt up tower.

Background:
Glyn Morris, a renewable Energy Consultant operates his business, AGAMA from offices he built adjoining his purpose built energy efficient home. All his power is provided by an AWP3.6-24V and 400 watts of PV backed up occasionally by a 4KVA geny. The site is exposed to severe South Wester s in the winter and strong South easters in the summer. Glyn says “ I am most impressed with the hardiness of the simple design and the energy it produces”.  

This exposed site tests the machines durability and has shown where to protect against marine corrosion..

This exposed site tests the machines durability and has shown where to protect against marine corrosion..

 

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South Africa - Various locations

Equipment Installed:
AWP3.6 - 12V, 13.6 Meter self supporting tilt up tower

Background:
Telkom is the State owned Telecommunication Service provider for South Africa. The company has installed hundreds of remote radio based telephone hubs to bring telecommunications to rural people. Those more than 5km from the grid are powered by PV. However in some areas the PV panels are being stolen every month. Telkom awarded AWP a contract to install a number of turbines in a Pilot scheme to investigate weather the turbines on separate self supporting towers would be immune to vandalism and theft. A year later none of the machines has been tampered with and at some sites the cost of the new installation has been recovered 4 times over in one year! However, some of the craggy mountain top sites along the Drakensburg Mountain border with Leshoto have shown us how severe turbulence can damage wind turbines.

Various Telkom Installations

Various Telkom Installations

Various Telkom Installations Various Telkom Installations
 

 

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Zimbabwe - Masampa Village Lake Kariba

Equipment Installed:
AWP3.6 - 48V 13.5M tilt up tower, 275Ahr 48V Battery bank, 3KW sine wave inverter, 12V battery charging station.

Background:
This fishing co-operative village is on the shores of Lake Kariba, 45Km by boat from the nearest town. Crocodiles inhabit the shore line and Hippos amble through the village at night while foraging ( startling a hippo is not good for your health). With funds provided by the Dutch government via the NGO ZERO, AWP implemented the entire project in all its stages: Initial location of the people in need (1), discussions with the village committee (2) resulting in motivation of the villagers to contribute labour to the installation, transportation of all materials to site, construction and commissioning (3), and finally training of operators (4). The system provides lighting for the main thoroughfares and also a popular 12v car battery charging center which draws customers from a 20 Km radius. Income from this activity is used for village development.

 

 

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Zimbabwe - Dumbamwe Clinic

Equipment Installed:
AWP3.6 – 48V, 13.6 Meter tilt up tower, 376Ahr 48V Battery Bank, 3KW Sine Wave Inverter.

Background:
A project financed by Dutch Government funds made available through the NGO ZERO. The early AWP3.6 turbine provides power  for the  3KW inverter to supply lighting, communications and cold chain refrigeration.

 

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USA - Guilomos Island Seattle

Equipment Installed:
AWP3.6 –24V, on unique tree top tower.

Background:
Ian Woffenden, an associate editor of Home Power Magazine has installed an AWP3.6 on a tower attached to the top of one of the  Redwood trees surrounding his home. Ian reports that the AWP gives him twice the KWHrs that he gets from an older Whisper 80.

 

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USA - Wisconsin

Equipment Installed:
AWP3.6-24V

Background:
Mick Sagrillo, renowned small wind turbine expert, writer and President of the Mid West Renewable Energy Association, ran the machine on his 60 foot test tower after giving it his customary “strip down to pieces to see how it ticks”  treatment.  His comments:
This is a very simple machine that does what it is supposed to do. It is quite heavy duty and built to last a long time. The turbine is easy to install with simple tools. I am most impressed with the turbine’s slow speed and quiet operation. It is refreshing to see that a modern wind generator can be manufactured that is absolutely quiet in its operation.

This is a very nice machine. I only wish someone in the US could build something as good as the AWP. We could use the competition, to say the least. And the low speed reliability. This is heavy metal, which is right in line with my ideas on wind turbine design. Nice job!!!

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Ontario Canada

Wind turbine installation

Background:
We live in Eastern Ontario, which doesn't have a great wind resource. Actually, it doesn't have a very good solar resource either. Nevertheless, we wanted to round out our generating capacity with a wind turbine. After looking a long time for a suitable unit we bought an African Wind Power 3.6, so called because its blade span is 3.6 metres, or just under twelve feet. It has a 48 VDC three phase alternator rated at 1 kW. We put it up at the end of October 2004.

July 2004
This is the site for the tower looking south towards the house and shop. You can just see the shop through the trees in front of the dozer.

When we started the site was rough, not even close to flat and Dave the dozer and backhoe guy dug up rocks the size of pianos. Somehow, he managed to get the site flat and level.

Various Telkom Installations Various Telkom Installations

September 2004
Pouring concrete for the footings. This is the central tower footing. We used three foot diameter tubes like this one for the central, east and south footings, and fabricated three foot square footings for the more heavily loaded north and west footings. The footings are all at least five feet deep. Probably overkill, but we didn't want to take chances. After all, how many of us have experience with footings that must resist lifting and pulling sideways? Eight yards of concrete went into the five holes. That is Lee on the left poking the concrete. He helped me prepare the site and set up the footings.

Below is a shot from the same location as the one two pics above, but a month later, showing the level site with the footings and anchors in place. If this photo were blown up, you could see all five footings, four for the guy anchors and one central tower footing. The guy anchor footings are 43 feet from the tower base footing.

Various Telkom Installations Various Telkom Installations

Late October
Above is the tower all rigged and ready to raise. What looks like a tower at the centre of the site is actually the gin pole, which is "only" 42 feet tall. You can see the five cables running from the top of the gin pole to the joints in the sections of tower pipe. There are five sections of pipe in the tower for a total height of 105 feet.

Below Left: Lunch break and pre-lift meeting. No one involved had any real experience with serious towers like this, so it was a major learning process for everyone. Almost the same cast of characters reassembled for the final lift of the turbine a week later.

Below Right is the test lift of the tower without the turbine mounted. The hoist cable runs through a block and tackle rigged between the top of the gin pole and the hoist (north) anchor which is 43 feet beyond the tower base. The hoist cable then runs all the way back past the tower base and the still horizontal tower to the tractor, the shadow of which you can see at the bottom right. The skinny 3/16" hoist cable is barely visible on the ground.

Various Telkom Installations Various Telkom Installations

I used the tractor to lift the alternator and mount it to what the manufacturer calls the "yaw head". It doesn't look like much, but that alternator is REALLY heavy for such a small device. I didn't weigh it but it must be over a hundred pounds, considering that the total tower top weight of the turbine is 250 pounds and the alternator is the heaviest part. The housing is machined cast iron and inside are a lot of permanent magnets and heavy copper windings. The turbine is an odd example of an elegant design carried out with 1950s technology, with simple fabrication and funky welds. Nothing lightweight about this unit.

Various Telkom Installations Various Telkom Installations

End of October 2004
This is the day of the big lift. There was much debate as we mounted the turbine blades and aligned them according to the manufacturer's instructions. That is Lee facing the camera and my brother Richard consulting with me. Neighbor Mike is at the left and Mitch from Embers in Perth on the right. We bought the turbine and tower through Embers.

While the other final preparations were being made, Lydia and Frank spent a couple of hours carefully cutting off the loose ends and tying off the cables. In all they trimmed 44 cable ends. That is Vanessa from Embers in Perth walking by.

Below left is Wendy, Brian and Mo making final electrical preparations at the tower base before the lift. Brian has done all the electrical installation because the owner of the system (me) is essentially clueless when it comes to electrical. Morley the dog was also willing to help.

Various Telkom Installations Various Telkom Installations

Above right is the lift of the tower with the turbine mounted. It went up without a hitch, although it certainly was dramatic. Lydia, in yellow, walked beside the tractor for the 150 foot travel it took to lift the turbine. She was relaying signals to me from Lee who directed the lift from the tower base.

Below left , a few minutes after the lift as the whole crew does final securing of the gin pole and checking cable tension all around.

Various Telkom Installations Various Telkom Installations

When we flipped the switch and the turbine started and the meter showed 15 amps, then 20 amps flowing into the battery bank, I was just thrilled, as was everyone who took part. A colleague called this the modern equivalent of a barn raising. How true.

Not in its native habitat.

The AWP turbine was designed by a Scot and built in South Africa. The question of its ability to tolerate the Canadian winter has come up. So far it has experienced a winter of very cold temperatures, several dumps of heavy wet snow and at least two bouts of freezing rain with no apparent ill effects.

Various Telkom Installations Various Telkom Installations

The turbine puts on quite a show in high winds. The tail boom is hinged to the power head so it can swing almost 90 degrees independently. And it swings a lot in strong winds, but the power head itself stays remarkably steady, even when furling away from the wind. In this view you can see the offset mounting of the alternator relative to the tower centre line. This design creates forces that turn the power head away from the wind when it gets too strong. It begins this furling motion in winds over 25 mph.

This turbine is promoted as starting up in wind speeds as low as 7 mph and making good power in low to moderate winds, which is mostly what we have here. So far, it seems to live up to its billing, producing around 5 amps (@48VDC) in a light breeze and peaking at about 22 amps in higher winds.

Various Telkom Installations Various Telkom Installations

Above is a view of the turbine from my third floor office window at sunrise. I just need to turn my chair slightly to see it, and I can assure you that I take a look many times a day.

Solar panels are nice enough and are almost maintenance-free, but are they ever boring to watch.

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Scoraig Scotlad

Equipment Installed:
AWP3.6-24V

Background:
AWP3.6 turbines installed around Scoraig (a peninsula cut off by Mountains with no grid power) by Hugh Piggott who designed the original AWP3.6. Scoraig experiences frequent winter storms.

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Antarctica

Equipment Installed:
AWP3.6-24V

Background:
AWP3.6 Turbines installed by University of California Berkely Space Sciences Labs to power weather monitoring stations around Antarctica.

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New York

Equipment Installed:
AWP3.6-24V

Background:
Eric and Friends installing a AWP3.6 Wind Turbine.

Michael Klemen conducts research on 4 small wind turbines and posts performance data on line, as well as audio and video information. Research papers, articles, and data acquistion information give thorough detail on wind resources and power production.

www.ndsu.nodak.edu/ndsu/klemen/index.htm

Adjusting the Guy tensions During lifting The site looks out onto the Bazaruto Island Archipelego

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North Carolina

Equipment Installed:
AWP3.6-24V

North Carolina Wind Energy at Appalatian State University

Background:
The Small Wind Research and Demonstration Site is a unique program to give first-hand experience with wind power technology. The facility is open to the public so that they can see and hear wind turbines in operation. Tours and workshops are hosted by the facility, which is maintained by ASU students, faculty, and staff.

Read more at
www.wind.appstate.edu/swiwind/smallwindrdsite.php

Adjusting the Guy tensions During lifting The site looks out onto the Bazaruto Island Archipelego

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Kenya

Equipment Installed:
2 x AWP3.6-24V on short towers.

Background:
With a taller tower they would only need one machine!

Adjusting the Guy tensions During lifting

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