Greef energy vertical axis wind turbine generator (VAWTs) are a type of wind turbine where the main rotor shaft is set vertically and the main components are located at the base of the turbine. VAWTs offer a number of advantages over traditional horizontal-axis wind turbines (HAWTs). They can be packed closer together in wind farms, allowing more in a given space. they are smaller, but rather due to the slowing effect on the air that HAWTs have, forcing designers to separate them by ten times their width.
GreeF energy vertical axis wind turbine generator are rugged, quiet, light, Omni-directional, and they do not create as much stress on the support structure. They do not require as much wind to generate power, thus allowing them to be closer to the ground. By being closer to the ground they are easily maintained and can be installed on rooftop and similar tall structures.
• Household, Garden, farm
• Telecom sites.• Rural electrification programs. Island , sentry, island, sight lighting .
The off grid 300w vertical axis wind turbine generator is often used in conjunction with solar panels to provide more reliable year-round energy supply.
Rated Rotor Speed(rpm)
Blades Rotor Diameter(m)
Start Wind Speed(m/s)
Rated Wind Speed(m/s)
Working Wind Speed(m/s)
Safety Wind Speed(m/s)
Three-phase AC out rotor disc permanent magnet direct drive generator
Electromagnetic disc brake+PWM
Generator Weight /Top Weight(kg)
Off-Grid solar wind hybrid controller
Free folding tower
-40°C - 50°C
Packaging & Shipping
1. Vertical axis wind turbine generator use inner foam protection outer Plywooden case .
2. Tower with Foam package only .
3. Controller invertor with inner carton box outer plywooden case.
4. Pakage size and weight please refer to our sales.
5. Shipping by sea with FCL LCL or by air .
If you have any request in package and shipping please tell our sales we will do according to your request.
System Design Service
We can design different system for customers according their request For example, off-grid system , solar wind hybrid system or solar wind diesel generator system like below
After Sale Service
Our main vertical axis wind turbine generator and battery are free 3 years warranty, controller and invertor are 1 years warranty.
All lifelong technical support and part cost supply.
(1) The warranty period is start from the date of shipment which show on the bill of loading or air waybill. (2) Free maintenance services during the warranty period the cost involved be borne by the company, do not charge a fee to customers, free warranty if any damage outside the warranty period, the company will charge a fee for labor costs and materials. (3) The warranty period, company's quality problems caused by the maintenance of the freight borne by the company, if not under warranty or man-made damage, the freight charges by the customer.
1. Q: Does installation Easy ?
A: Very easy, every customer can doin by themselves, we will supply all the components for installation and very details installation manual.
2. Q: Does our wind is enough for a vertical axis wind turbine generator ?
A: As our vertical axis wind turbine generator can start running at low wind speed. Your average annal wind speed is more than 5m/s then you can use it .
3.Q:Which model is suitable for me?
A: Please contact our sales with following points :
1. What appliance do you want to running by the system? How many watts are they and their working time .
2. Your annual wind speed .
3. What kinds of system do you want ? On-grid or off-grid
4.Q:Can I only buy parts not whole system?
A: Yes,for example you can manufacture tower in local , we can supply you tower drawing .
Any other questions ,please feel free to contact us .