Eliminate your Electric Bill with the Wind in your Backyard!!!
TECWIND Turbines come in a variety of sizes that can be matched to your wind resource and virtually eliminate your electric bill. For example if you have determined that your wind resource is 11 mph annually at 60 feet and your electric bill is 1,000kwh’s a month you will need a TECWIND 7.8-12.5kW Turbine on a 60 foot monopole. If you have the same type of resource and you only use 600kwh’s a month you would use TECWIND 5.6-5.4kW Turbine. See your local TECWIND Dealer for a site assessment and see how close you can come to eliminating your electric bill.
Eighty percent of all small wind applications are in low wind areas. This means that the typical wind speed is 10 to 12 mph and if you record/monitor the amount of time the wind is between 6 and 8 mph you will find out that it is approximately the same amount of time as when the wind is between 8 to 16 mph wind. This means that when you purchase a wind system that starts at 6.6 mph you will double the amount of time that the turbine is capturing wind and generating power as compared to the typical 8 mph startup speed of other turbines.
How do the TECWIND Turbines double the amount of time that they are generating power compared to other machines for less money? The rotor diameter is the single most determining factor in how much power you will receive out from your wind resource. The ratio of the size of the TECWIND Turbine alternator to the rotor diameter is the highest in the industry. For example a typical 12.5kW machine has a rotor diameter of 7.8 meters. These turbines will not start producing until the blades are spinning in an 8 mph wind. It is not until you reach high winds when you will begin to generate enough power to utilize the high end of the generator that you paid for. Not only does this turbine start generating sooner it will be spinning twice as much and generating power twice as often.
Wind Data from a Low Wind Site
This graph shows that the area under the curve between 6.6 mph and 8 mph is the same as the area from 8 to 16 mph indicating that the TECWIND Turbines will be operating twice as much as wind systems that start at 8 mph.
Certified Dealers
All dealers are factory trained and have experience installing alternate energy technology systems. Not only are they trained in the installation of our systems they are also trained in wind site assessment techniques and site evaluation to assure that your wind system is installed properly at the right height and the optimum location to maximize your payback potential.
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The variable pitch speed control system consists of a blade that has been optimized for low winds and a centrifugal hammer that is fastened to blades that are allowed to tilt on their axis. In wind speeds below 5.5mph (2.5m/s) the turbine blades remain stationary. In this stationary position the blades are very easy to start up. So as soon as 2.5 m/s of wind impacts the blades they begin to turn and generate power through the permanent magnet direct drive generator. During the rotation, the outermost edge of the blade will be driven by the force of the centrifugal hammer the blade to tilt toward the turbine plane as it rotates. The faster it rotates the more parallel it will be with the turbine plane. When it approaches this angle the turbine has nearly reached its rated output power. When the wind speed is between 20 and 55mph (9m/s ~
25m
/s) ,the blade will keep adjusting its position back and forth slightly to let the angle fluctuate a little bit and in that way it will maintain its rated power. When the wind speed is above 55mph, the wind will keep drawing the blade by the centrifugal force until the angle continues to decrease and turn into a negative angle. Under this negative angle, the rotation of blade will produce a resistance on the rotation of turbine blade to slow down the rotation and protect the wind turbine from over speeding. The maximum RPM of the turbine will never be more than 380 RPM for the T4.0-3.4kW, 280RPM for the T5.6-7.0kW, 220RPM for the T7.8-12.5kW and 120RPM for the T11.0-32kW. (A, B, C：3 Blades; a, b, c：3 Centrifugal Hammers)
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Quiet Operation
All TECWIND Turbines are less than 34 dba 18 feet from the windward side of a 40 foot tower. That is like having a hair dryer running on top of the tower. These are some of the quietest wind turbines in the industry.
All exposed componenets of the wind turbine are hot dipped galvanized for complete protection in marine environments. This combined with the cast steel body and hub assembly give the TECWIND Turbines a expected life of 20 years with minimum maintenance.
Built-in Surge Protection
A wind system can be very vulnerable to lightning since it is a metal object projecting up toward the sky. That’s why great lengths have been taken in the design of the controller and inverter circuits to assure that the complete system is protected against surges caused by lightning and grid interruptions. Metal varistors and bypass links send all these surges to ground before they have a chance to enter the controller and inverter circuits. In addition to protecting the circuits we also exceed NEMA (National Electrical Manufacturers Association) requirements for grounding of the tower and control system. This will assure that your investment is well protected from any upsets to the grid or lightning surges.
UL1741 Certified Grid-Tied Inverter
The inverters that TECWIND uses are UL1741 approved. All inverters that are tied to the grid need to be certified to this standard to make sure that they don’t keep running when the grid goes down. This is known as “anti-islanding” which means that you cannot be your own power company generating power onto the grid when the grid is down. It is done for safety reasons so that when the grid goes down the power line workers can safely restore power without having to worry about being electrocuted by someone who keeps generating power when the grid goes down.
Backup Generator Configuration
A TECWIND Turbine can be configured as a backup power generator. This can be added to the system at any time after the installation. In order to set this up we will need to perform a power use survey and recommendations will be made about the size of the backup system needed to meet your critical loads during an outage. Contact your TECWIND dealer to set up a time after your installation for this survey. These surveys can only be conducted after the installation because at that point your dealer is more familiar with your power panel, wiring within your home, the power potential of your wind system and how to best configure your backup system to meet your requirements.