Wind Turbines

Micro Wind Turbines-An Affordable Solution

Homemade Micro-Turbine

Given a constant amount of wind, wind power represents one of the cheapest green renewable energy sources available.

Recent developments in wind turbine designs and construction, have increased the components reliability, while cutting down on the number of movable parts, thereby resulting in better-made turbines.

These days, wind turbines for homes, make up the essential core of dependable renewable energy systems.

Depending on the requirement, output, AC or DC power may be drawn on to charge batteries for use in transport and lighting, or to power outdoor wood furnace pumps, water heaters, fluorescent lights, and home appliances. The clean renewable energy generated from micro wind turbines may also be used for traffics lights, electric fences, even remote phone booths. This small wind turbine proves highly useful for rural locations with inadequate power resources.

Micro Wind Turbines combine the best of both worlds in solar and wind technologies.

One particular Micro Wind Turbine that we have installed is built with the same sturdy construction as more expensive wind turbines but is specifically designed for areas with lower wind speeds of 5-25MPH. It will continue to charge in higher winds also. (25-60 MPH)
This Micro Turbine will start charging with 4 watts at around 5MPH. The power very quickly picks up as the wind speeds increase. Using the methods that wind generators are rated this system produces over 900 watts at 35MPH winds. It is made to stay facing the wind, instead of turning out, so will continue to produce great power even during storms.
It’s construction also makes it quieter, which will make your neighbors happy. The 3 aluminum blade system to has a span of 5 feet. The base of each blade is 9 “. They catch lower winds than the narrower blades of other turbine models. This Micro Turbine contains a powerful magnet to produce great power. 10MPH winds push the blades to start turning. Once this unit is going it will continue to turn in winds as low as 5MPH.

Microturbine

It is available with a 12 volt stator or a 24 volt stator. If you are using a 12 volt battery system we recommend using a 24 volt stator in lower wind areas. This way, at the lower speeds of 5-10MPH you will still have charging voltage. If you have winds of 15 MPH plus most of the time use the 12 volt stator for higher amperage but it will take around 12 MPH winds before it will reach charging voltage. You can also use this Micro Turbine with 24 volt stator to charge your 24 volt battery bank. It will take around 12 MPH winds to reach charging voltage.

Wind Energy Basics (A guide to small and Micro wind systems by Paul Gipe) describes a new class of small wind turbines, dubbed micro turbines, which are so small that they can be purchased for less than $1000 and carried in your hands.
The debut of micro wind turbines brings the technology within reach of almost everyone. These inexpensive machines, when coupled with readily available photovoltaic panels (solar cells), have revolutionized living in remote homes off-the-utility grid. And the increasing popularity of micro wind turbines has opened up new applications previously considered off-limits to wind energy, such as charging electric fences and powering remote telephone call boxes, once the sole domain of solar cells.
Micro wind turbines have been around for decades for use on sailboats, but they have gained increasing prominence in the 1990s as their broader potential for off-the-grid applications on land has become more widely known.
While micro wind turbines have yet to reach the status of widely available consumer commodities such as personal computers, the day may not be far off. The use of wind power is “exploding,” say Karen and Richard Perez in their foreword. “There are currently over 150,000 small-scale RE (renewable energy) systems in America and they are growing by 30% yearly. The small-scale use of wind power is growing at twice that amount–over 60% per year,” according to the Perezes, the editors of Home Power magazine.
If you are building a new system we highly recommend a 24v system if you want a battery back-up or Off-Grid system. If you are strictly building a grid tie system with battery backup, build a 48v battery system since converting 48v to 110v is more efficient, and wire size is half the size of 24v.
Not sure? Go 24v. Or, you really only want Grid-Tie and will maybe buy 24 Volt appliances in the future, then go with a 48v system and when you get the 24v appliances also buy a DC to DC converter to go from 48v to 24v. If you stay with the same battery voltage then you won’t loose 10% of your power through a converter.

Mini Wind Farm Advantages:

  • More total power per dollar spent
  • Self installation. No cranes or heavy equipment needed
  • Progressive affordability. Start small and add more turbines as you can afford them
  • Redundant dependability with multiple turbines running
  • Very weather proof! Snow and ice create no major problems in small wind turbines
  • No high wind speed worries. Small turbines are extremely durable in storms!
  • No building permits required in many areas for small or low level turbines
  • Less conspicuous than a giant 80 foot tall tower. Very neighbor friendly!
  • Flexibly. Add ONLY as many turbines as you need to run your house
  • Use 20′ pipes with 4 feet cemented into the ground. Cheap and simple mounts
  • 16′ foot high mounts on 1.5″ schedule #80 pipe do not require guy wires
  • Easy to service.
  • Can be placed closer to property lines. Great for small properties (Fall Zone Rule)
  • No expensive tower that can actually cost more than the wind turbine itself
  • Mini wind farms blend in with scenery and have a high acceptance rate from neighbors and community


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