To increase the access to renewable wind energy of the small and medium consumers, Freen OÜ (Estonia) offers to purchase and install small vertical wind turbines of its own production, with an installed capacity of 20 kW.
About Freen
- the largest manufacturer of small wind turbines in the EU;
- certified production with a quality and control system;
- production capacity of up to 4000 pieces of wind turbines per year;
- a proprietary spare parts warehouse in Estonia, to ensure uninterrupted supply;
- qualified technicians to carry out the installation, service and post-warranty maintenance of wind turbines.
Freen-20 wind turbines have the following features:
- No wind orientation mechanism
- The turbine operates at low speeds (108 rpm), which gives increased safety for fauna and people
- In-house production of turbine components in Estonia
- Strong gusts of hurricane winds do not lead to fatal structural destruction, or damage to surrounding objects (lightweight wing construction)
- Use of direct torque transmission drive
- The absence of a gearbox is a factor of: reduced energy loss between the generator and the rotor, reduced noise levels, absence of transmission oil and reduced mechanical wear
- The Freen-20 is controlled by a certified inverter and proprietary FREEN SCADA software
Technical Parameters
Turbine Type: Freen-20
Rated Power: 20kw
Turbine diameter: 5.598 m
Turbine diameter in working mode: 7.0 m
Tower height: 12 m
Total turbine height: 24.702 m
Turbine weight: 2500 kg
Tower weight: 2500 kg
Turbine concept: gearless, variable speed
Rotor type: Darrieus rotor
Rotation Direction: Counter clockwise
Number of blades: 9
Number of wings: 3
Swept surface area: 52 m²
Blade material: metal cable, polyurethane foam
Turbine speed: variable 35-108 rpm
Generator: Freen Direct Drive Synchronous Generator
Network connection: CLEANVERTER TL inverter
Brake System: Electromagnetic Brake
Cut in wind speed: 3.5 m/s
Rated wind speed: 14.9 m/s
Cut out wind speed: 17 m/s
Survival wind speed: 36 m/s
Remote Monitoring: Freen SCADA
Wind class: IEC III, IV
Noise level at 100 m: 45 dB
Surface installation area: 35 m2
Temperature range: -25C° - +40C°
Lifespan: 20 years
Place an order for 2025 through ×××××××××
| General data | |
|---|---|
| Manufacturer | freen |
| Model | FREEN-20 kW |
| Number | 100 |
| Available from | November 2024 |
| with location | No |
| Land | Estonia (Reval) |
| Specifications | |
|---|---|
| Condition | New |
| Year of construction | 2024 |
| Rated power | 20 Kw |
| min. rated power | Yes Kw |
| rated power | Yes Kw |
| Annual yield | 30000 Kwh |
| Tower height | 12 m |
| min. tower height | Yes m |
| tower height | Yes m |
| Rotor diameter | 7 m |
| min. rotor diameter | Yes m |
| rotor diameter | Yes m |
| Weight | 5000 medical history |
| Tower design | Lattice tower |
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