300W, 500W 1kw Low Rpm Free Energy Vertical Wind Turbine

• Customization: Available
• Output Type: AC Three Phase
• Number of Blade: Three Blade
• Model NO.: VAWT
• Rotating Shaft: Vertical
• Stress Way of Blade: Resistance
• Power: ＜10kW
• Certification: CE, ISO
• Generator Type: Disc Coreless Permanent Magnent Generator
• Generator Material: Aluminium Body+Copper Wire+ND-Fe-B
• Blades Number: 3PCS
• Blades Material: FRP
• Transport Package: Foam+Plywooden Case
• Specification: CE ISO BV
• Trademark: GREEF
• Origin: Qingdao, Shandong, China
• HS Code: 8502310000
• Production Capacity: 200sets/Month

Product Description

                300W,500W 1KW low rpm free energy  vertical wind turbine 


Vertical Windmill Turbine (VAWTs) are a type of wind generator 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 Vertical  Windmill Turbine 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.


Recommend for
Household, Garden, farm
Telecom sites. Rural electrification programs. Island, sentry, island, sight lighting.

The Vertical Windmill Turbine is often used in conjunction with solar panels to provide more reliable year-round energy supply.









Technical Specification
GREEF 300W Vertical Wind Generator

Model	GV-300W
Rated Power(W)	300W
Max Power(W)	400W
Rated Rotor Speed(rpm)	200
Start Torque(N.M)	<0.1
Blades Height(m)	1.3
Blades Rotor Diameter(m)	1.2
Blades Material&Quantitiy	FRP /3PCS
Start Wind Speed(m/s)	1m/s
Rated Wind Speed(m/s)	10m/s
Working Wind Speed(m/s)	2-25m/s
Safety Wind Speed(m/s)	50m/s
Option Voltage(V)	12-24V
Generator Type	Three-phase   AC out rotor disc permanent magnet direct drive generator
Protection Method	Electromagnetic   disc brake+PWM
Generator Weight /Top Weight	13kg/50kg
Swept Area(m³)	1.56
System type	Off-Grid
Controller	Off-Grid solar wind   hybrid controller
Invertor	Off-grid invertor
Tower Type	Free folding tower
Tower Height	6m
Insulation Grade	B
Protection Grade	IP54
Working Termperature	-40°C - 50°C
Life time	20 Years

GREEF 500W Vertical Wind Generator

Model	GV-500W
Rated Power(W)	500W
Max Power(W)	650W
Rated Rotor Speed(rpm)	200
Start Torque(N.M)	<0.3
Blades Height(m)	1.5
Blades Rotor Diameter(m)	1.6
Blades Material&Quantitiy	FRP /3PCS
Start Wind Speed(m/s)	1m/s
Rated Wind Speed(m/s)	10 m/s
Working Wind Speed(m/s)	2-25m/s
Safety Wind Speed(m/s)	50m/s
Option Voltage(V)	12-24V
Generator Type	Three-phase   AC out rotor disc permanent magnet direct drive generator
Protection Method	Electromagnetic   disc brake+PWM
Generator Weight /Top Weight	20kg/64kg
Swept Area(m³)	2.4
System type	Off-Grid
Controller	Off-Grid solar wind   hybrid controller
Invertor	Off-grid invertor
Tower Type	Free folding tower
Tower Height	6m
Insulation Grade	B
Protection Grade	IP54
Working Termperature	-40°C - 50°C
Life time	20 Years

GREEF 1KW Vertical Wind Generator

Model	GV-1KW
Rated Power	1000W
Max Power	1500W
Rated Rotor Speed	120rpm
Start Torque	<0.3N.M
Blades Height	2.6( 8.528 ft.)
Blades Rotor Diameter	1.8(5.904 ft.)
Blades Material&Quantitiy	FRP /3PCS
Start Wind Speed	1m/s (2.24mph)
Rated Wind Speed	10m/s(22.4mph)
Working Wind Speed	1-25m/s (2.24-56 mph)
Safety Wind Speed	50m/s(112mph)
Option Voltage	24-220V
Generator Type	Three-phase   AC out rotor disc permanent  magnet direct drive generator
Protection Method	Electromagnetic   brake+PWM
Generator Weight /Top Weight	32kg/111kg
Swept Area	4.68 m2
System type	Off/On Grid
Controller	Off/on-Grid solar   wind hybrid controller
Invertor	off/on- Grid invertor
Tower Type	Free folding tower
Tower Height	6m(19.68ft.)
Insulation Grade	B
Protection Grade	IP54
Working Termperature	-40ºC - 50ºC
Life time	20 Years

 
GREEF 2KW Vertical Wind Turbine

Model	GV-2KW
Rated Power	2000W
Max Power	2500W
Rated Rotor Speed	120rpm
Start Torque	<0.3N.M
Blades Height	3.7m( 12.14 ft.)
Blades Rotor Diameter	2.6m(8.528   ft.)
Blades Material&Quantitiy	FRP /3PCS
Start Wind Speed	1m/s   (2.24mph)
Rated Wind Speed	10m/s(22.4mph)
Working Wind Speed	1-25m/s   (2.24-56 mph)
Safety Wind Speed	50m/s(112mph)
Option Voltage	24--380V
Generator Type	Three-phase   AC out rotor disc permanent magnet direct drive generator
Protection Method	Electromagnetic   brake+PWM
Generator Weight /Top Weight	51kg/177kg
Swept Area	9.62   M2
System type	Off/on-Grid
Controller	Off/on-Grid   solar wind hybrid controller
Invertor	off/on-Grid invertor
Tower Type	Free   folding tower
Tower Height	6m(19.68ft.)
Insulation Grade	B
Protection Grade	IP54
Working Termperature	-40ºC   - 50ºC
Life time	20   Years

GREEF 3KW Vertical Wind Turbine

Model	GV-3KW
Performance
Rated Power	3kW
Max Power	4kW
Start Wind Speed	2m/s   (4.48mph)
Rated Wind Speed	12m/s(26.88mph)
Working Wind Speed	2-25m/s   (4.48-56 mph)
Safety Wind Speed	50m/s(112mph)
Physical Parameters
Blades Length	3.7M(12.136ft)
Blades Rotor Diameter	2.5M(8.2ft)
Blades Material &Quantity	FRP /3PCS
Mill Weight	355kg
Swept Area	9.25M2
Tower Height	8m(26.24ft.)  Free folding tower
Generator Parameters
Generator Type	Axial Flux Coreless outer rotor disc permanent magnet direct drive generator
Rated Speed	100RPM
Start Torque	<1N.M
Option Voltage	120-400V
Protection Method	Electromagnetic   Brake +PWM
Protection Grade	IP54
Working Temperature	-40-50ºC
Life time	20   Years

GREEF 5KW Vertical Wind Turbine

Model	GS-5KW
Performance
Rated Power	5kW
Max Power	6kW
Start Wind Speed	2.8m/s   (9.184mph)
Rated Wind Speed	12m/s(26.88mph)
Working Wind Speed	2-25m/s   (4.48-56 mph)
Safety Wind Speed	50m/s(112mph)
Physical Parameters
Blades Length	5.2M(17.056ft)
Blades Rotor Diameter	3.3m(10.824ft)
Blades Material &Quantity	FRP /3PCS
Mill Weight	530kg
Swept Area	17.16 M2
Tower Height	12m (39.36ft.)  Free Folding tower
Generator Parameters
Generator Type	Axial Flux Coreless outer rotor disc permanent magnet direct drive generator
Rated Speed	100RPM
Start Torque	<1N.M
Option Voltage	120-500V
Protection Method	Electromagnetic   Brake+PWM
Protection Grade	IP54
Working Temperature	-40-50ºC
Life time	20   Years

Axial Flux Coreless Generator                                                
GREEF VAWTs use axial flux coreless disc generator which have following advantage:
1.Torque Patent Technology: use newest "Precise Coil" technology. No hysteresis and gear notches effect make the start torque very low <0.3N.M ,it can make the wind turbine have low start wind speed.
2.Original Structure: use disc coreless motor to take place traditional motor makes it less drag
3. Higher Reliability: special structure make it bigger ratio of power to volume, power to weight and have long life of 8 times longer than traditional motor.
4. Gearless, direct drive, low RPM generator.
 

Sound Data                                                                                                                  
Test position: 3kW Vertical Wind Turbine at 15m away from generator (average value of 3 point-rears, left, right)

Wind Speed (m/s)	3	4	5	6	7	8	9	10	11
Sound(dB )	1.35	3.08	6.22	9.45	13.24	22.09	31.55	36.45	37.22
Wind Speed (m/s)	12	13	14	15	16	17	18	19	20
Sound(dB )	45.33	45.22	45.33	45.43	45.54	45.66	45.76	45.85	46.00

 Note: The sound value includes wind noise.

 

System Design Service

We can design different system for customers according their request. For example, off-grid system , Grid-tie system, solar wind hybrid system or solar wind  diesel generator system.

Packaging & Shipping

1.  Vertical wind turbine 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.

Aftersales Service
Our main Vertical Windmill Turbine and battery are FREE THREE 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.


FAQ
1. Q: Why buy a small wind turbine?
A: A GREEF wind turbine is a smart investment that will lower your monthly expenses, increase your net worth. At the same time, it will help clean the air, slow climate change, and move us towards the energy independence. You will also enjoy watching your utility meter turn backwards and the lively interaction between the wind and your GREEF turbine. Finally, it will totally change your view of wind you will start appreciating windy days. For those fortunate enough to have a windy site of at least one acre, a GREEF wind system will be substantially less expensive than a comparable solar system, it will take up less space, and its performance won't degrade over time.

It's like buying vs. Renting a home
Over the next 10 years a typical homeowner or small bussiness will pay $18000 to over $5000 in electric bills, at rates that often increse faster than inflation. When you choose a GREEF wind system you take the same monthly expense and invest it in a tangible asset. Once your GREEF turbine is paid off, you will enkoy more money in your pocket every month for the next 20years.


2. Q: Does Vertical Windmill Turbine installation Easy?
A: Very easy, every customer can doin by themselves, we will supply all the components for installation and very details installation manual.

3. Q: Does our wind is enough for a Vertical Windmill Turbine?
A: As our Vertical Windmill Turbine can start running at low wind speed 1m/s. So your average annal wind speed is 4- 5m/s then you can use it.

4. 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

5. Q: Can I only buy parts of the Vertical Windmill Turbine not whole system?
A: Yes, for example you can manufacture tower in local, we can supply you tower drawing.