Renewable Energy Systems – Power Your Environment

Wind Power

The realities of Wind Power

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Wind power can be a viable and important energy contributor to any system, if done properly. After 20 years of designing and installing HAWT (horizontal axis wind turbines), we have now designed and tested our own VAWT (vertical axis wind turbines) and have found that, in most cases, a small amount of power delivered consistently over many days always adds up to more energy than a HAWT unit which spins very fast in high winds but has virtually no power potential in low winds. Planetary Systems is now recommending VAWT units in most locations, especially locations with intermittent very high winds where a HAWT could be destroyed. Our VAWT units are the best dollar-per-watt value in that they are nearly indestructible, extremely reliable and very easy to install and use. Most systems can be put anywhere and have no discernible noise level when operating. We have found that the difference between a good wind generator and one that fails can be the controller scheme applied. We still offer HAWT units but have culled these down to two specific types with benefits for specific location which can be fine-tuned and protected by using our TGW controllers. These controllers are a Buck-Boost type with MPPT technology to maximize and protect the wind unit and output. Using these controllers, no major tower construction is needed. Even with the best technology, wind is always going to be less predictable and there are no guarantees on actual output depending on the location and many other factors, so consider your location well.

FACT:  All 3-phase AC output wind generators (the most efficient type) produce AC power to the controller in pulses. These pulses are not a continuous input like Solar PV, but are pulses which vary with speed and voltage of the unit. All battery systems see this input as pulses and respond accordingly, which means they charge batteries differently. While HAWT wind generators in the 400w to 2kw range will produce intermittent high amp/high wattage output in heavy winds, most lead acid batteries, even large battery banks, cannot quickly accept or absorb these pulses and some power is rejected which raises the voltage at the controller terminals, causing some inaccuracy in battery voltage reading and control operation. We have found that the slightly lower but consistent output from VAWT wind units produces better battery stability and higher amp-hour/kilowatt hour output over time. We have tested the two side by side and found that based on monthly output, VAWT units produce more power and are less likely to have controller over-voltage issues and mechanical failure due to occasional extreme winds or storms which can easily over-speed a conventional HAWT wind generator, no matter what brand.

Warranty Information: Please click here for our PDF download.

 

Vertical Axis Wind Turbines

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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VAWT units are great for urban areas and connect directly to our Power Package. We offer several types of machines, with several different designs. We have tested and used these or prototypes on our shop system and found they work well in the sometimes very high winds here in Ennis. call for discount pricing and operation information on any VAWT unit. We offer the C-type and Darieus-Savonius VAWT units which are a low cost way to utilize wind energy when using our Power Package system without large towers or expensive, over-rated wind generators. The WKV-600 and WKV-1000 wind generators can be used anywhere in any climate and are the ultimate in high end technology for wind power.

C-300W     300 Watts    $1,995.00

5″ blade Dia.     5 Blades     125lb     24-48vdc

Availability: 3-4 weeks

Details:  Vertical axis wind turbine rated 300 watts for any location-mounts on 3″ or 4″ sched-40 steel pipe at 10′ height minimum and rated for 300 watts output. The C-type wind generator employs planetary gear technology where every turn of the wind blades equals 3 turns of the generator rotor to produce high power at low rpm.

Comments:  Unit suitable for nearly any location-tower kit required for 4″ sched-40 steel pipe as tower. Analog or Digital controller available-see PDF for pricing.

Printable PDF: C-300W Product Information

 

C-500W     500 Watts         $2,495.00

Dia-6 feet     7-Blades     150lbs     24vdc-48vdc

Availability:  3-4 weeks

Details:  Vertical Axis Wind Turbine (VAWT) with controller for mounting on 4″ sched-40 steel pipe at approx 7-10′ level about ground. The C-type wind generator employs planetary gear technology where every turn of the wind blades equals 3 turns of the generator rotor to produce high power at low rpm.

Comments:  Tower adaptor required for any pipe other than 4″ sched-40 steel. Add $295 for typical tower adaptor. No tilt tower required. Analog or Digital controller available-see PDF for pricing

Printable PDF: C-500W Product Information

 

C-1KW     1000 Watts         $4,150.00

Dia -8.25 feet     5-Blades     187lbs     24vdc-48vdc

Availability:  3-4 weeks

Details:  Vertical Axis Wind Turbine (VAWT) unit with 1000 watts rated output and for mounting on 5″ sched-40 steel pipe-similar to C-500 unit. The C-type wind generator employs planetary gear technology where every turn of the wind blades equals 3 turns of the generator rotor to produce high power at low rpm.

Comments:  This unit requires a 5″ sched-40 steel tower of any height above 7″ from ground level. Complete tower kits are available for $ 855.00. Special Buck-Boost Digital controller available-see PDF for pricing.

Printable PDF: C-1KW Product Information

 

GV-500 VAWT     500 Watts (650W)     20 amps         $2,850.00 (Highly Recommended)

124lb.     24vdc/48vdc

Blade Height:  5 feet

Availability:  2-weeks

Details:  Swept-wing type wind unit featuring Mag-lev technology for small spaces where infrastructure may be limited and low noise levels are very good. These units have been tested at our facility and are very reliable, with a 20-year life span with virtually no maintenance. Includes our MPPT wind controller. This is an axial flux generator which can produce large amounts of power at low wind speed when adjusted properly. Simply the best wind generator available on the market for flexibility and reliability.

Comments:  Requires 4″ sched-40 pipe for mounting and adaptor for $ 235.00. Typical complete tower setup $ 495.00

Printable PDF: GV-500 Product Information

 

GV-1000 VAWT     1000 Watts     30 amps         $3,950.00 (Highly Recommended)

350lb     24v /48vdc

Blade Height:  8 feet

Availability:  2 weeks

Details:  Swept wing type wind unit featuring Mag-lev technology for small spaces where infrastructure may be limited and low noise levels are very good. These units have been tested at our facility and are very reliable, with a 20-year life span with virtually no maintenance. Includes our new MPPT wind controller. This is an axial flux generator which can produce large amounts of power at low wind speed when adjusted properly. Simply the best wind generator available on the market for flexibility and reliability.

Comments:  This unit must be shipped by sea, when shipping by sea, 4 weeks is required. Requires 5″ sched-40 pipe for mounting and adaptor for $ 450.00. Typical complete tower setup: $ 850.00 – $ 1650.00

Printable PDF: GV-1000 Product Information

 

XG-H1KW     1000 Watts         $2,994.00

60″ diameter     120lb     24/48v

Blade Diameter:  79″ Blade length

Availability:  2-3 weeks

Details:  Vertical axis wind turbine rated 1000watts, H-type design rated for high wind locations suitable for max winds speed of 112mph, highly efficient and quiet so also suitable for urban locations. Easy to assemble and operate, supplied with our TGW buck-boost controller.

Comments:  Requires 4″ sched-40 pipe for mounting and adaptor for $ 450.00. Typical complete tower setup: $ 850.00 – $ 1650.00

Printable PDF: XG-H1KW Product Information