300 Watt 28Volt wind turbine power generation system | On-Grid and Off-Grid use | | Evelectric 28Volt 300 watt free energy wind turbine electricity power system is a state of-the-art horizontal generator designed both to charge batteries and supply electrical loads, when used in conjunction with a suitable sine wave DC-AC inverter and a battery bank, the EV300W can also supply AC power for house appliances, remote site power or any off-grid power requirement. Annual generation Min/Max (Kwh:450~900) This unit combines modern styling with low visual impact and quiet operation. It is suitable for small industrial and scientific locations or remote holiday cabins. This wind turbine has been developed to meet the growing global demand for power both on-grid and off-grid applications, advanced aerodynamic blade design and a more powerful generator. The accurate construction of each turbine blade minimizes noise and vibration optimizing performance and improves the power to weight ratio. Protected for overwind and strong gusts of wind by automatic yawning and mechanical braking system. Low noise design and covered by manufactures warranty on parts. |  |  | | Wind turbine generator | Model | 300Watt 28Volt HAWT Wind Turbine Generator | | Rated power (W) | 300 Watts | | Maximum output | 450 Watts | | Rated voltage (V) | 28 Volts AC | | Rotor diameter (m) | 2.2 metres | | Start-up wind speed (m/s) | 2.5 metres a second | | Rated wind speed (m/s) | 8 metres a second | | Security wind speed (m/s) | 35 metres a second | | Working wind speed (m/s) | 4 ~ 20 metres a second | | Speed regulation method | Mechanical yawing and electromagnetic brake | | Working temperature | from - 40 to + 60 Degrees Celsius | | Rated RPM (r/m) | 600 revolutions per minute | | Shell material | Steel | | Blade material&quantity (pcs) | Fiber glass blades x 3 | | Generator style | 3-phase (AC) Alternating Current (PM) Permanent Magnet | | Annual power generation | 450 Kwh Min / 900Kwh Max | | Inverter rated voltage | 220V AC | | Suggested tower height | 6 Metres | | Main machine weight | 35 Kgs | | Guyed tower weight | 65 Kgs | | Free standing tower weight | 240 Kgs | | Suggested battery capacity | 2 x 12 Volt 150AH deep cycle | | Matched inverter type | Modified wave / Sine wave | Evelectric 300 watt wind turbine generator system is a state of-the-art horizontal generator designed both to charge batteries and supply electrical loads when used in conjunction with a suitable sine wave DC-AC inverter and a battery bank. | | Blades/Rotor System | | The rotor system consists of three fibre glass rotors acting like aircraft wings, the blades convert the energy of the wind into rotational forces that can drive a generator. The fibre glass blades are exceptionally strong . The rotor has three blades because three blades will run much smoother than rotors with two blades. | Alternator | The wind generator is a horizontal axis wind generator. The alternator utilizes permanent magnets and has an inverted configuration in that the outside housing (magnet can) rotates, while the internal windings and central shaft are stationary. The output from the alternator is three-phase alternating current(ac), but it is rectified to direct current by the charge controller. Since it uses permanent magnets, the alternator is generating voltage whenever the rotor is turning. | Nacelle | | The nacelle is the aluminum housing around the main body of the machine. It contains the main structural backbone of the turbine(called the mainframe), assembly the yaw bearings, and the tower mount. The yaw bearings allow the wind turbine to freely pivot around the top of the tower so that the rotor will face into the wind. | How does wind work? | | Wind turbines are ideal for on-site energy generation and can be installed effectively in most locations. Wind turns the blades, spinning the shaft to generate power. The electricity goes into an inverter to convert DC to AC power, then is fed into batteries or the grid to spin the meter backwards. | Do I have enough wind? | | While these turbine will produce at 7.5 MPH winds, choosing a site with at least 9-10 mph average wind is advised to make installing a wind turbine really worthwhile. The actual wind speed at your site will be influenced by the local topography and any nearby obstructions such as trees or other buildings. | How tall is the wind tower? | A tower must be chosen to mount the turbine. In general the higher the tower the higher the sustained wind speed and the more power generated. Turbine should be installed as far as possible from buildings or trees which may block the wind’s full potential. Install your turbine at least 20 feet (6 m) above any surrounding trees or structures, ideally in a wide open space of 250 foot (76 m) radius. If you live in an agricultural area where crop dusting is common, or the site is close to an airport, review regulations for air traffic notification. Your wind turbine will not likely need FAA lights as long as its total tower height is under 200 feet.One thing to keep in mind is that taller towers may not be allowed in some areas. The tower kit available above provides everything but a schedule 40 pole and earth anchors, which are available at local hardware stores. Guyed towers are also a good choice as they can be hinged at the base, making it easier to lower to the ground for repairs and maintenance, or to avoid damage during extremely hazardous weather. Professional installation is recommended. A disconnector switch may also be required by your local utility. | | | Do I need planning permission? | Wind energy installations may require some type of permission - it depends on where the site is. It is a good idea to do some research and seek approval from your local office. It is also courteous to discuss your plans with neighbors, and the community group if there is one. If you need a permit, prepare the required paperwork and submit your permit application along with payment covering the filing fee. If a particular fee seems excessive or inappropriate for your situation, find out the basis for the fee. You may be able to avoid it or have it reduced. Contact the building permit agent in your town or county planning department to obtain any required forms to be filled out. Typical permitting procedures may include public hearings and zoning meetings, environmental review, drawing reviews, and fees. Typical elements looked at may include: minimum parcel size, allowable tower height, setbacks from property line, sound level limits, building code and electric code compliance. Prepare detailed engineered site layout map and electrical drawings to show placement of your equipment. If it is unduly difficult to set this up, consider presenting this to your governing body and requesting change. Help to pave the way for people going green - this model zoning ordinance is a good place to start! | Are wind turbines noisy? | | The sound of the wind blowing usually makes more noise than a wind turbine turning. While these units will create some sound, it is not likely to be heard 100 feet from the unit. Will wind turbines affect birds? Careful monitoring by independent experts shows that birds are highly unlikely to be damaged by the moving blades of wind turbines of this size. Plus birds are typically smart enough not to fly into things they can see, and experience shows as much with these wind turbines. | What about lightning? | | Lightning is a powerful force of nature, so precautions should be considered when installing a wind tower. Thankfully lightning protection is a well known practice and can be applied to wind turbine systems. It is very important to ground the battery bank, and ground the tower by connecting the negative wire to a ground rod. These can be found pre-assembled, or made out of galvanized steel pipe or an iron rod. They are buried underground close to the batteries or tower. While these measures are well known and effective, Mother Nature may still find a way. All things considered gas arrestors are worth affording for the safety and protection they provide to highly engineered equipment. | Can I use wind power for heating? | Yes, however the energy required to heat a building is usually significantly more than the energy used in electricity, so a much larger turbine and/or battery system would be required. The same may go for water heating. Consider solar heating and solar hot water and employ energy efficiency measures to reduce use or waste. | Can I sell electricity back to the grid? | | In times of high wind production and/or low energy usage, your electricity meter will actually spin backwards. This energy can be used when there is less wind or use exceeds production. In some places where net metering is in effect, utility companies are obligated to purchase the excess power from you or give you a credit for it. Check your local laws to determine how this works for your wind project. You may also need to install an export meter before you are able to keep track of and sell energy back to the grid. How much of the time does the wind turbine produce electricity? This unit generates electricity 70-85% of the time. The amount of energy generated is dependent on wind speed. | What happens when the wind stops blowing? | | Your electricity continues uninterrupted by coming from either your battery supply or from being connected to the grid. How long do these wind turbines last? Around 20-30 years, with high performance reliable parts that are built to go the distance. | Can I connect my turbine to the grid? | Yes, utility connected installations are possible with these systems. When wind energy is produced your home will use it first, and if more is needed it will seamlessly draw from the grid. No need for batteries in this type of setup. Different connection standards are in place for different utility providers, some requiring an onsite inspection once the installation is complete. Contact your utility and ask for an interconnection agreement. US Federal law supports the development of wind energy systems, as the Public Utility Regulatory Polices Act (PURPA, 1978) requires utilities to connect to wind providers. | | DAILY ELECTRICAL USE | Calculating Total Watt Hours | Device | Watts to power | Hours used daily | Watt hours daily | | Computer | 175 | 4 | 700 | | TV 25 ~ 30 Inch | 150 | 5 | 750 | | Refrigerator(22 cu ft) | 500 | 24 | 12000 | | Air conditioner | 1750 | 10 | 17500 | | DVD/Blu-ray | 30 | 2 | 60 | | Mobile/Cell phone | 15 | 1 | 15 | | Fluorescent lights | 20 | 2.5 | 200 | | Incandescent lights | 100 | 2.5 | 1000 | | Clock | 10 | 24 | 240 | | Iron | 1500 | 0.5 | 750 | | Clothes washer | 450 | 1 | 450 | | Dishwasher | 1500 | 0.5 | 750 | | Microwave | 1000 | 0.5 | 500 | | Coffee maker | 1200 | 0.5 | 600 | | Toaster | 1200 | 0.25 | 300 | | Hair dryer | 1500 | 0.5 | 750 | | Gararge door | 300 | 0.25 | 75 | | Electric drill | 300 | 0.25 | 75 | Total Watt Hours Daily | 40,315 | Total KWH Daily | 40.32 | Optional parts | | | 2 in 1 Controller & Inverter | $1,014.00 | | Inverter: off grid,single phase,sine wave 230V 50HZ | | | Guy cable tower: 6m | Please ask for pricing | | Free standing tower: 9m | Please ask for pricing | | Suggested Battery Capacity: 12V150AH*2 Gel material | Please ask for pricing | | On-Grid Inverter to suit wind turbine power generator | Please ask for pricing | | To convert from Miles and Kms to Metres per second click here | Videos of wind turbine systems in use can be viewed here | Our picture gallery of wind generation turbines and systems can be viewed here | History of wind generation and other information can be found here |
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