Wind power
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Wind power may be a solution for your electrical needs. To utilize wind power, besides a suitable average wind speed and having a location for the wind power generator, it's important to install proper electrical grounding for the tower and unit. It's also generally recommended that the unit be 20 feet higher than any structure or other item that's within a minimum of a 100 or so feet of the tower. This is just a rule of thumb, and it depends on exactly what is nearby, production expectations, etc. Voltages available for wind power vary from unit to unit, and some are adjustable. Both low and high voltage models are available in varying voltages, from 12 volts to 240 volts. A perfect wind power site has an average wind speed of 15 MPH or more, but this is rarely available. This is not to say that a site with less than a 15 MPH average isn't a potential site. When one considers the potential power output from wind, even at average speeds of 9 - 10 MPH, wind units can be more cost effective than solar modules over similar power production periods, especially since wind can produce power over a broader range of time, both in the day and in the night time. Wind power produces varying amounts of power depending on wind speed. The units will usually begin to spin at between 6 - 8 MPH and begin producing usable charging amps beginning at around 8 to 10 MPH. Wind speeds of 25 - 30 MPH are required for the generators maximum rated output. So, you may have a breezy 10 MPH wind with short gusts of 15, 20 or 25 or more throughout the day and/or evening, and the charging amps will therefore vary from moment to moment, so we look at averages over a day, week, month and year. Keep in mind that wind speed at the top of a tower is higher than along the ground. Click here to return to the store Since wind power produces varying amounts of amps, only certain items should be connected directly to this source like powering a "matched" water pump. Grid-tie is also viable using an inverter to process the charge amps creating a "sell" or back-feed feature, however higher average wind speeds are required to make this option cost effective. When the unit's charge amps are used to power normal 120/240v appliances, equipment, etc. then a battery bank and inverter is used. The batteries supply the total required DC amps to the inverter for AC loads when demanded, and the generator re-charges the batteries. In grid-tied or utility interactive systems either all or part of the power may be sold to the utility company or used to reduce total utility consumption. Systems which only sell power do not require batteries when configured with a specific "grid-tie" inverter, but cannot support loads directly if public power fails. Below, we've provided a very simplistic visual observation table which gives you some idea of what various wind speeds will likely do to things like trees, leaves, etc. Naturally, this information isn't considered scientifically 100% reliable, but may encourage you to consider your site for wind power. Generally, if you experience sustained periods of high winds, then you likely have a candidate site for wind power, however you should consult with experts before making an investment in wind power. More specific regional wind data may determine whether you can create the level of power you are seeking. Visual Observations
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For a more definitive view of your potential wind power potential you can view the following wind map. However, please keep in mind that there are viable sites within the areas shown as "Moderate" and not so good sites shown within the areas of "Excellent" or "Good". Elevation of the site and proximity to nearby obstructions can make a difference. There are even candidate sites within the areas shown as "nothing", or in white, where there is seasonal wind in the winter months for example.
Wind Power - Most ideal sites
So there is no 100% sure rule, depending on your site conditions and whether you need more power in the winter versus the summer. We maintain more regional climate data that can help you determine whether your site is a candidate for wind power, and by discussing your location and site conditions we can provide a more accurate assessment as well as indicate the type of power production to expect from a particular wind power unit.
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