Archive for the ‘Uncategorized’ Category

Power Inverters Output – Frequency 50hz vs 60hz?

Friday, September 12th, 2008

We help people with small wind generator systems all the time. When individuals start learning about the technology, they begin looking at different available components. Power inverters take DC current from a wind system anf change it to AC current for home power and home appliances to run on. The most common question that comes up is “what will happen if I get a 50 Hz inverter, the 60hz is more expensive?”  The  best answer I can give is “Dont try That at Home”  Be warned, let me inform what can happen using 50hz Asian/European inverters with US standard appliances and electrical systems.

Manufacturers build electrical devices for a certain amount of Current, Voltage and Hertz (Cycles) which is mentioned on the name plate. The Current is dependent of the Voltage and the Hertz supplied to an electric motor or appliance.

If this electrical Current running through your US appliance is higher than it is designed for, because you bought a cheap Asian/Eoropean 50hz inverter, here’s what happens. The appliance burns out, leading to premature failure, wear, and can cause a fire.

Standards for Electrical Voltage and Hertz are different in different parts of the world, roughly you can distinguish:
120 and 220 Volt; 60 Hertz (USA)
230 Volt; 50 Hertz (Europe & Asia)

What happens if you connect a 60 Hertz motor to a 50 Hertz mains:
– The motor turns 17% slower
– The internal current goes up by 17%
– The power (watt) goes down with 17 %
– The mechanical cooling is less, because of 17% less turns
– Insulation of the electrical wiring deteriorate much quicker
– Sometime results in a burn-out, which could cause a fire.pure sine wave inverter

WindEnergy7 only sells and recommends safe components that were all desined and configured to work with United States appliances and electrical standards. If you are wanting a home wind generation system, let us assist you and make as safe a system as we can.

If you are interested in starting a wind project for your residence or acreage, contact us. To Buy a Wind Turbine or Become a Dealer, Please fill out our Contact Form. The system will automatically send you some additional info.

        

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Off-Grid Wind Turbines, Wind Generator System

Sunday, July 20th, 2008

Although we do not sell many Off-Grid power systems, many of our customers do ask us about it.  Naturally an Off-Grid wind generator system is cheaper, because it does not require the expensive component of a Grid-Tie power inverter.  Below is a diagram of an Off-Grid wind generator system.  

Some states and utility providers do not have Net Metering support for Grid-Tied systems.  So the consumer cannot tie a wind turbine system to the grid, or gets no benefit or incentive to contribute to the utility grid.  These consumers want to go Off-Grid with a power disconnect where they can manually switch over, back to the grid if needed.

For Off-Grid type, your wind generator is connected to Battery bank.

(1) For AC system: Power from Wind generator outputs unstable DC power 

(2) unstable DC power into Controller Changes to stable DC power

(3) stable DC power, ready to store in Battery Bank is saved, or used by the residence through the inverter. 

Then to Off-Grid Inverter output  stable AC power suitable for AC Appliance

Who Is Off-Grid Good For?

Some remote locations, like on farms, ranches, hunting camps, need to bring power lines in for neede electricity.  For them, an independent system could have a lower cost than running power lines to their site.  This depends on how far the new lines would need to be run, and how much power is needed for the remote site.  The technologies of wind, solar, storage, and Power conversion technology for Wind and Solar energy storage with batteries has advanced dramatically in recent years.  This has made it a more common and feasible alternative to use wind and or solar to provide electricity in remote areas and sites with no connectivity to the power grid.

The technologies of wind, solar, storage, and Power conversion technology for Wind and Solar energy storage with batteries has advanced dramatically in recent years.  This has made it a more common and feasible alternative to use wind and or solar to provide electricity in remote areas and sites with no connectivity to the power grid.

A Grid-Tied system has some expensive components that allow it to share your energy with others.  Also Grid-Tied systems have need for instruments that help you monitor the power being ,generated, vs. used, and what is being fed out to the Grid for use by neighbors.

Why Combine Solar or Diesel Power?

If you are interested in starting a wind project for your residence or acreage, contact us. To Buy a Wind Turbine or Become a Dealer, Please fill out our Contact Form. The system will automatically send you some additional info.

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Wind Energy News – July 17th 2008

Wednesday, July 16th, 2008
  • Responding to Al Gore’s Clean Energy Challenge – Next Big Future
    17 Jul 2008 at 9:10pm
    Responding to Al Gores Clean Energy ChallengeNext Big Future, CA – 16 hours ago, The Global wind energy council forecasts that if Germany has optimal wind friendly policies then Germany could have 55 GW of wind by 2020 generating 150 
  • First Home Wind Turbines in West Texas (News West 9 Midland)
    17 Jul 2008 at 8:07pm
    People in Lamesa may soon be able to have wind turbines in their own backyards. 
  • PUC approves plan to transport wind energy from West Texas – Bizjournals.com
    17 Jul 2008 at 5:01pm
    The Associated PressPUC approves plan to transport wind energy from West TexasBizjournals.com, NC – 20 hours ago, Through this plan, an estimated 18456 megawatts of renewable electricity produced by wind and solar resources will be transmitted via power lines to cities Texas gives early OK to wind energy power line project Houston ChronicleFrom… 
  • Renewable Energy Veterans Join Second Wind Inc. Board Of Directors – Renewabl…
    17 Jul 2008 at 5:00pm
    Renewable Energy Veterans Join Second Wind Inc. Board Of DirectorsRenewableEnergyWorld.com, NH – 20 hours ago, Haller was a board member of the American Wind Energy Association, and was a Peer Review Team Member for the US DoE Wind R&D Program. 
  • Wind turbines’ arrival expected to be tonight (Prince George Citizen Online)
    17 Jul 2008 at 2:19pm
    A train-load of wind turbines is now expected to pass through Prince George tonight, CN Rail spokesperson Kelli Svendsen said this morning.A 59-car train is in the process of transporting the components for eight wind turbines but must stop at siderails to make way for other scheduled CN services. It had previously been expected to reach Prince 
  • County planning director withholds wind turbine specs – Cumberland Times-News
    17 Jul 2008 at 1:53pm
    County planning director withholds wind turbine specsCumberland Times-News, MD – 23 hours ago, The language ? proposed text changes to the zoning code ? defined a noncommercial wind energy conversion system as a ?single wind energy device? or turbine 
  • Good oil boy backs air – New Zealand Herald
    17 Jul 2008 at 1:38pm
    EconomistGood oil boy backs airNew Zealand Herald, New Zealand – Jul 17, 2008Although he lives smack in the middle of one of the windiest places in America, as recently as 2005 he dismissed the idea of wind energy out of hand: “I was Video: Energy Blowin In The Wind CBSAn energy policy for the future Chicago, TribuneTexas oil tycoon wants to… 
  • Huge wind turbines arrive by rail today (Prince George Citizen Online)
    17 Jul 2008 at 4:07am
    A train carrying the first wind turbines to be set up in B.C. will be passing through Prince George today.Specially commissioned for the task, the train is tentatively expected to reach the city at 1 p.m. as it makes its way north to the future home of the Dokie wind farm, 40 kilometres northwest of Chetwynd.It’ll will be quite the sight, said R… 

    • If you are interested in starting a wind project for your residence or acreage, contact us. To Buy a Wind Turbine or Become a Dealer, Please fill out our Contact Form. The system will automatically send you some additional info.

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    Siemens Opens another Wind Turbine Plant, Illinois

    Sunday, July 13th, 2008

    Although Siemens has recently laid off thousands of workers, that’s not an indication that wind power is not good and viable. Siemens is the largest producer of wind turbine gear drives in the United States, employing approximately 7,000 people at 40 locations throughout Illinois. Siemens’ currently runs an Elgin Illinois plant employing 150 people.green-wind-energy siemens-wind-turbine

    Siemens Energy & Automation has announced that it will develop a second plant in Elgin, Illinois for the manufacturing of mechanical drives for the wind turbine industry. Siemens invested $20 million in this plant creating approximately 300 new production jobs and 55 new office jobs. A groundbreaking ceremony was held in June, 2008 and the plant is planned to be completed in the spring of 2009.

    Commenting on the announcement, Anne Cooney of Siemens said that the, “new facility will enable Siemens to increase production of our mechanical drives to help our customers meet the growing demand for sustainable energy resources.”

    Our congratulations to Siemens on their project and thank you for investing in US manufacturing!

    If you are interested in starting a wind project for your residence or acreage, contact us. To Buy a Wind Turbine or Become a Dealer, Please fill out our Contact Form. The system will automatically send you some additional info.

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    Wal-Mart installs 50kw Small Wind Turbine, Attention Getter

    Saturday, July 12th, 2008

    Wal-Mart recently unveiled a new store outside of Dallas, Texas. The store’s design combines a host of renewable energy technologies including numerous solar PV arrays, two, small wind turbines, a bio-fuel boiler to recycle and burn recovered oil from store operations and a nearly endless list of energy-saving and sustainable design principles.walmart-dallas-small-wind-turbine

    The company has arranged through the Oak Ridge National Laboratory and other partners to analyze every aspect of this experiment. If successful, this will change the way Wal-Mart, designs, constructs, and manages buildings and their energy use. Usually the rest of the retail industry follows Wal-Mart’s lead on all kinds of methods, maybe this one too.

    The most visible innovation can be seen from far away, serving as a fitting beacon for the experimental store: a 50 kW small wind turbine. The 146 foot tower is an eye catching attention getter that makes it stand out and get attention. A local car dealer is also inquiring, says the turbine is a great attention getter and he wants one for his car dealership that sits on the freeway. Why not?  It beats renting those large spotlights and it pays for itself, what advertisement pays for itself?  A small wind turbine…

    If you are interested in starting a wind project for your car dealership, retail store, or small business, contact us. If you are interested in starting a wind project for your residence or acreage, contact us. To Buy a Wind Turbine or Become a Dealer, Please fill out our Contact Form. The system will automatically send you some additional info.

    To Buy a Wind Turbine or Become a Dealer turbine@windenergy7.com.

     

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    Tour of homes features Residential Small Wind Turbine

    Saturday, July 12th, 2008

     

    This pretty brown house belongs to Christine and Curt Mann may be one of the easiest houses to find on the upcoming Grant Park Candlelight Tour of Homes in Georgia. Their house is easy to spot, it’s the one with the 45-foot small wind turbine.small wind turbine residential windmill

    The couple’s neighbors in this historic community tried to keep the small wind turbine from going up. But the Manns won out and erected the turbine with its three six-foot blades. Grant park Tour-goers will get to see many more energy-saving devices at the Manns’ 1920 house. The couple started reclaiming the home from the ruins last February.

    The small wind turbine will offset much of the electricity bill and should pay for itself in 5 to 7 years. I addition to being a responsible thing for the environment, a turbine will run for over 30 years generating free electricity long after it’s paid for. Homeowners all over the US are putting in their own wind turbines these days.

    If you are interested in starting a wind project for your residence or acreage, contact us. To Buy a Wind Turbine or Become a Dealer, Please fill out our Contact Form. The system will automatically send you some additional info.

     

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    Iowa, Eldora-New Providence School wind turbine in 2002!

    Saturday, July 12th, 2008

    In Iowa, the Eldora-New Providence Schoolput in their 750kW NEG Micon wind turbine. The superintendent, Bill Grove reported that he expects the school to save $10,000 to $20,000 in addition to paying it’s loan payments over a 10 year loan period. As soon as the turbine is paid off, the school’s savings could increase tenfold. The turbine is expected to produce approximately 1.5 million kWh per year. Since the school uses a little less than 1 million kWh, it expects the excess power to bring income to use for educational programs.

    eldora-new-province-school-wind-turbine-iowa

    Others expect the project to pay for itself in approximately seven years. Analysis indicates the school can expect to earn a return on its investment of 13%. The electricity from the wind turbine is considered “inflation proof,” so if the cost of electricity rises, thus do the economic benefits from making such a smart decision.

    The financing these schools receive includes some income from a federal program called the Renewable Energy Production Incentive (REPI).  The REPI was designed for incentive, so public entities that are not eligible for the federal wind energy production tax credit can still get help for wind energy. Payments from REPI are uncertain, however, because the fund relies on annual Congressional appropriations. The economics of a wind project is a great price for the electricity the turbine produces.

    In most of the successful school wind projects, the local utility “net meters” the output.  With net metering, in months when the turbine produces more than the school uses, that excess value is banked with the utility to offset bills when the school needs more than the turbine produces. But, only Iowa and Ohio currently allow net metering without a size limitation on the turbine. MidAmerican Utility in Iowa has successfully applied to the Iowa Utilities Board to limit the capacity for net metering in its service territory to 500-kW, and other utilities are following suit. In lieu of net metering for large turbines, higher buy-back rates for non-profit entities could be a solution.

    Six schools in Iowa have wind turbines in operation near their campuses: Sentral School in Fenton has a 65-kW Windmatic turbine, Nevada High School in Story County has one 250-kW Wind World turbine; Clay Central/Everly Community School District in Royal has a 95-kW turbine; Akron-Westfield installed a 600-kW Vestas turbine in 1999; and Clarion-Goldfield High School in Wright County installed a 50-kW AOC turbine in 2002.

    If you are interested in starting a wind project for your acreage, school district, or local government, contact us at WindEnergy7.

    To Buy a Wind Turbine or Become a Dealer, Please fill out our Contact Form. The system will automatically send you some additional info.

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    Propane powered Hybrid-Plug-in Car in Ohio?

    Tuesday, July 8th, 2008

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    Not sure I know the difference in propane and natural gas? Propane is a by-product of the refining process of natural gas and crude oil. About 3% of a barrel of oil becomes propane. Propane boils at -44 degrees Fahrenheit; when it is vaporized, it becomes a gas again. Because it vaporizes at such a low temperature, it mixes easily with air. Therefore, it doesn’t require a high temperature (over 400 degrees Fahrenheit for gasoline) for it to atomize. This improves cold starts, emissions, and driveability. Propane is a stable fuel; it doesn’t go bad if you don’t use it!

    Since propane has such a low carbon content, motor oil never gets dirty which increases engine life. The oil does still need to be changed, though not as often. Spark plug life is dramatically extended. Also, you cannot “flood” a propane engine. When a gasoline engine “floods,” raw fuel enters the cylinders, washing past the rings and into the oil, also wetting the plugs. Propane carburetion automatically compensates for altitude changes, saving carb re-jetting and computer re-learn.

    Since propane is under pressure, there are no fuel pumps, no float bowl, or needle and seat. Another plus is the high octane rating of propane between 100 and 110. The propane system is sealed to the elements so that even complete submersion will not allow water into the fuel system.

    Propane is available throughout the world. It is all the same fuel and the fittings are standardized. Your local propane dealer will usually cut you a break when buying motorfuel.

    Propane:
    + Will not go bad
    + Burns clean
    + Requires no maintenance
    + Is easy to install
    + Is very safe
    + Rates at 100-110 octane
    + Automatically compensates for altitude
    + Prolongs engine life
    + Is affordable
    + No loss of power with any of our kits (these are performance kits)
    + No wiring except the on/off solenoid.
    + Propane is not harmful to soil or water

    But propane has always been used in industrial forklifts, farm and ranch vehicles for a long time. The propane auto can be switched from propane to gasoling and back, quickly, easily, most don’t know that…

    Growing up we used to put conversion kits on our farm and ranch pickups, run on propane. It was really just a new carb and a tank and you could run the pickup on GAS OR PROPANE. Very coool. We should organize a project here in ohio to manufacture and market propane conversion kits for popular vehicles. You know, if they take that hybrid idea and run it on propane… That would be ideal. Small Wind Turbine Windmill at the house to plug-in your natural gas hybrid car, no need for this nasty ohio coal powered utilities…

    On the ranches we always had a large propane tank for the house, but real large, because we filled up the trucks from there too. Propane power is great, that’s what got my attention about Pickens Plan, windmills and natural gas automobiles, man, I’m in!

    To Buy a Wind Turbine or Become a Dealer, Please fill out our Contact Form. The system will automatically send you some additional info.

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