Freen-H20 Horizontal-Axis Wind Turbine
A high-efficiency 20 kW wind turbine engineered for farms, businesses, and off-grid applications, maximizing wind energy production with a streamlined horizontal-axis design.
Built for Power and Efficiency
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Rated Power:
20 kW
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Operational Wind Speed:
from 3,5 m/s
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Tower Height:
12-36 meters
(lattice tower) -
Wind Class:
IEC II
How Freen-H20 Works
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Tail-Fin Guided Wind Alignment
Freen-H20 features a passive yaw system with a precision-tailored nacelle and tail fin, allowing the turbine to automatically adjust its position based on wind direction. This self-aligning mechanism eliminates the need for a powered yaw motor, making the 20 kW wind turbine system ideal for off-grid or rural installations.
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Efficient Generator-Gearbox Integration
The turbine incorporates an asynchronous generator paired with a compact planetary gearbox, ensuring stable rotational speed and effective energy transfer. This cohesive setup reduces wear and maximizes output, providing dependable performance across varied wind conditions in a 20 kW wind turbine configuration.
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High-Performance Rotor with Tip Brake Protection
Freen-H20 has blades made of durable fiberglass, featuring a centrifugal tip-brake system. At high speeds, the blade tips automatically engage to slow the rotor, offering passive overspeed protection without external controls, vital for safe operation in fluctuating wind environments.
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Automatic Emergency Rotor Brake
A spring-activated, electromechanical brake is built into the turbine generator system. It stays engaged by default and is released only through control signals, ensuring the Freen-H20 wind turbine halts safely in case of power loss or emergency shutdowns, an essential safeguard for sensitive or populated areas.
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Aerodynamic Stall-Control Design
The blade geometry is crafted to naturally induce aerodynamic stalling in high winds, limiting excess rotation. This passive safety mechanism allows the Freen-H20 to function reliably and securely, even in turbulent weather—making it a solid choice for residential and hybrid energy systems.
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Low-Maintenance Design
Freen-H20 is engineered for simple maintenance. Basic annual maintenance involves lubricating bearings and visual checks, while gearbox oil changes are required only every two years. This low-service design reduces operating costs and ensures long-term reliability in a 20 kW turbine setup.
20 kW Wind Turbine. High Output, Competitive Price
The Freen-H20 is a small wind turbine with a rated power of 20 kW, featuring a horizontal-axis design with a three-blade rotor and constant-speed operation. It was designed for medium and big consumers like farms and small businesses seeking a reliable renewable energy solution.
Power Curve
Technical Parameters
- Turbine type HAWT (Horizontal axis wind turbine)
- Rated power 20 kW
- Turbine diameter 15 m
- Tower height 12 m to 36 m lattice tower
- Total turbine height 43,5 m
- Turbine weight 1500 kg
- Tower weight 3370 kg for 36 m
- Turbine concept upwind, passive yaw, nacelle with rotor and tail
- Rotor type horizontal-axis rotor
- Rotation direction clockwise
- Number of blades 3
- Swept surface area 177 m²
- Blade material fiber glass / polyester, tip brake mechanism stainless steel
- Blade type fixed angle, upwind, stall control and tip-brake
- Turbine speed 51 rpm, constant
- Generator asynchronous, planetary gearbox
- Grid connection direct (thyristors + reactive power compensation)
- Brake System stall, electro mechanic failsafe rotor brake, tip-brakes
- Cut in wind speed 3.5 m/s
- Rated wind speed 11 m/s@16,5 kW
- Cut out wind speed no cut out
- Survival wind speed 42.5 m/s
- Remote Monitoring optional
- Wind class IEC II
- Noise level at 60 m 45 dB
- Surface installation area 1 m²
- Temperature range -25C° - +60C°
- Lifespan 20 years
Annual Energy Production
Annual energy production (AEP) is based on a Rayleigh wind speed distribution, K=2, t=15°C, P=1013 mbar, ρ=1.225 kg/m3
Efficient Power, Flexible Setup
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Flexible Integration
Built for adaptability, this 20 kW wind turbine supports both grid-tied and off-grid systems, making it ideal for agricultural sites, industrial zones, or hybrid energy setups like wind-plus-solar.
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Space-Efficient Power
Freen-H20 offers modular tower options ranging from 12 to 36 meters, allowing flexible installation in areas with space—such as farms or commercial properties. Its output suits medium energy users seeking a stable and dependable power source.
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Hybrid Compatibility
Freen-H20 integrates seamlessly with solar systems and battery storage, enabling hybrid setups that maximize energy independence and grid resilience—perfect for users seeking round-the-clock renewable power.
Applications of Freen-H20
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Crop Farms, Livestock Operations, Agricultural Processing
With its 20 kW output and tall modular tower options, Freen-H20 is ideal for power-intensive agricultural setups, supporting irrigation, automated feeding systems, cold storage, and farm machinery in off-grid or grid-unstable environments.
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Remote Workshops, Processing Plants, Rural Industry
Freen-H20 supports industrial loads like machinery, conveyor belts, and control systems, offering dependable energy where grid access is weak or unstable. It's a practical solution for reducing operational costs and carbon emissions.
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Solar + Wind Installations for Consistent Output
The Freen-H20 is a powerful complement to solar parks, delivering energy during overcast days and night-time hours. This hybrid compatibility ensures continuous production and greater return on investment.
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Storage Warehouses, Packing Facilities, Agri-Centers
Perfect for farm-based commercial facilities, Freen-H20 powers lighting, refrigeration, and logistics equipment—reducing reliance on diesel generators and cutting long-term energy costs.
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Educational Sites, Research Stations, Municipal Sites
Freen-H20 can provide secure and independent power for schools, public institutions, and training centers located in rural or semi-urban regions with limited grid connectivity.
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Green Energy for Distributed Infrastructure
The turbine serves as a reliable energy source for industrial parks aiming to increase sustainability. It supports smart grid integration and can supply multiple facilities within a zone through a shared power system.
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Microgrids, Community-Owned Power Systems
Freen-H20 enables community-scale electricity generation, helping energy co-ops deliver consistent renewable power to small towns, housing developments, or regional clusters.
Freen-H20 in Action
The Freen-H20 is II class horizontal-axis wind turbine built for consistent performance and long-term reliability. Designed to meet the needs of farms, commercial estates, hybrid installations, and light industrial operations, it delivers stable, high-output energy where it’s needed most, efficiently and cost-effectively.
Proudly developed and manufactured in Estonia, the Freen-H20 complies with the highest European quality and safety standards. Every unit is produced under certified processes, including EN 1090-1, ISO 9001:2015, and ISO 3834-2, ensuring exceptional durability, safety, and precision for modern energy infrastructure.
Frequently Asked Questions
Everything you need to know about Freen-H20.
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Horizontal-axis turbines like the Freen-H20 actively align with the wind using a yaw system and are optimized for high efficiency in areas with consistent wind flow. Vertical-axis turbines can capture wind from any direction but generally offer lower output, especially in high-wind locations.
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The Freen-H20 is ideal for agricultural lands, industrial zones, solar parks, and commercial estates with open space and stable wind patterns. Its modular tower system (12–36 m) allows for flexible deployment across diverse terrain types.
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Yes! Freen-H20 is fully compatible with solar power and energy storage systems, making it perfect for hybrid setups that ensure energy availability day and night, in all seasons.
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This depends on your average wind speed, available space, and energy demand. Freen-H20 is best suited for medium to large energy users with access to land. We offer a free site evaluation and wind potential analysis to help you determine whether this turbine is the optimal fit.
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If your site has open space and steady wind, the Freen-H20’s horizontal-axis design will provide higher efficiency and greater output. Vertical models may be better suited for built-up areas with turbulent wind. Not sure? Reach out for a free consultation—we’ll recommend the best solution for your goals.
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The cost of a 20 kW turbine varies based on tower height, installation site, and system configuration (e.g., hybrid with batteries or solar). Freen offers complete turnkey packages customized to your needs. Contact us to get pricing, financing options, and planning support tailored to your project.
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The Freen-H15 produces up to 15 kW and is compact enough for small farms, eco-homes, and rural facilities with limited space or moderate energy needs. The Freen-H20 delivers 20 kW and requires more space due to its larger swept area and taller modular tower options (12–36 m). It’s better suited for users with higher energy demand—such as large farms, industrial sites, or hybrid wind-solar systems. If your site has limited space or only moderate energy requirements, the H15 may be more efficient and cost-effective option.
Power your home with green energy. Order Freen-H20.
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