VENSYS
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  • Offer Profile
  • VENSYS ENERGY is a leading manufacturer of gearless wind turbines in the megawatt and multi-megawatt class. More than 8,700 VENSYS wind turbines totalling over 13,000 MW have already been connected to the grid worldwide.

    It is their technological features that make our wind turbines second to none: Gearless, with permanent magnet-excited multi-pole generators, grid-friendly VENSYS converter systems and innovative, low-wear toothed belt drives for the blade pitch system. And the 2.5 MW platform now comes with extended rotor diameters of 100, 109 and 112m – while the tower head mass has been kept remarkably low.
Product Portfolio
  • Wind Turbines

  • Brilliantly simple. This is what best describes the VENSYS 1.5 MW and VENSYS 2.5 MW platforms in their respective power classes. VENSYS wind turbines are limited to a small number of long-life components, while our service is focused on making sure that your wind turbine is operable at any time. We provide 24-hour remote monitoring and status surveillance, thus guaranteeing you full functionality and maximum power output of your VENSYS wind turbine around the clock.
      • VENSYS 1.5 MW

      • Gearless and with permanent magnet technology instead of excitation power and gearbox losses. With an air-cooled generator and air-cooled VENSYS frequency converter for the most varied grid requirements.

        With a low-maintenance blade pitch system made by VENSYS using a toothed belt drive featuring its own pitch control system.
        With over 8,600 turbines installed, the VENSYS 1.5 MW platform is the world's most frequently installed gearless 1.5 MW turbine of our time.
        70, 77, 82 and 87 meters: Offering a choice between four different rotor diameters, it is suitable for the most varied wind zones. Further information can be obtained from the technical data sheet.

        The best-seller in its class
        Product advantages:
        • Dispensing with a gearbox means less repair work and lower maintenance costs while at the same time enjoying a higher yield, especially when  working in the partial-load range.
        • High-quality permanent magnets save excitation power, resulting in higher energy yields.
        • The air-cooling system on both the generator and the VENSYS frequency converter further reduces the number of components and eliminates the need for cooling agents and maintenance work.
        • The blade pitch system with a toothed belt drive works without lubrication and keeps wear and maintenance to a minimum.

        A gearless VENSYS wind turbine in the 1.5 MW class requires fewer components, reduces wear and carries a higher yield. With more than 8,000 turbines installed it is the world market leader in its class. It complies with all grid requirements and qualifies for the “Systems Service Bonus”
          • VENSYS 70

          • Rated power: 1500 kW
            Rotor diameter: 70.34 m
            Hub height: 65-85m
            Swept area: 3886 m2
            Speed range: 9-19 rpm
            Operational data:
            Cut-in wind speed: 3 m/s
            Nominal wind speed: 14 m/s
            Cut-out wind speed: 25 m/s
            Speed control: variable, microprocessor controlled remote monitoring
            Gearbox: No gears
            Power control: Pitch
            Grid Connection: frequency converter
            Yawing System: electrical drive motor
            Control system: microprocessor controlled
            Brakes: single pitch-control / triple redundant
            Tower: tubular steel tower 65m, 85m
          • VENSYS 77

          • Rated power: 1500 kW
            Rotor diameter: 76.84 m
            Hub height: 61,5-100m
            Swept area: 4637 m2
            Speed range: 9-17.3 rpm
            Operational data:
            Cut-in wind speed: 3 m/s
            Nominal wind speed: 13.5 m/s
            Cut-out wind speed: 22 m/s
            Speed control: variable, microprocessor controlled remote monitoring
            Gearbox: No gears
            Power control: Pitch
            Grid Connection: frequency converter
            Yawing System: electrical drive motor
            Control system: microprocessor controlled
            Brakes: single pitch-control / triple redundant
            Tower: tubular steel tower 61.5m, 85m, 100m
          • VENSYS 82

          • Rated power: 1500 kW
            Rotor diameter: 82.34 m
            Hub height: 70-100m
            Swept area: 5325 m2
            Speed range: 9-17.3 rpm
            Operational data:
            Cut-in wind speed: 3 m/s
            Nominal wind speed: 12.5 m/s
            Cut-out wind speed: 22 m/s
            Speed control: variable, microprocessor controlled remote monitoring
            Gearbox: No gears
            Power control: Pitch
            Grid Connection: frequency converter
            Yawing System: electrical drive motor
            Control system: microprocessor controlled
            Brakes: single pitch-control / triple redundant
            Tower: tubular steel tower 70m, 75m, 85m, 100m
          • VENSYS 87

          • Rated power: 1500 kW
            Rotor diameter: 82.34 m
            Hub height: 85-100m
            Swept area: 5890 m2
            Speed range: 9-17.3 rpm
            Operational data:
            Cut-in wind speed: 3 m/s
            Nominal wind speed: 12.5 m/s
            Cut-out wind speed: 22 m/s
            Speed control: variable, microprocessor controlled remote monitoring
            Gearbox: No gears
            Power control: Pitch
            Grid Connection: frequency converter
            Yawing System: electrical drive motor
            Control system: microprocessor controlled
            Brakes: single pitch-control / triple redundant
            Tower: tubular steel tower 70m, 75m, 85m, 100m
        • VENSYS 2.5 MW

        • With a significant increase in performance – and yet so compact. With a rotor diameter extended to 100, 109 and 112 meters for most high wind and low wind sites.

          The VENSYS 2.5 MW platform is the solution for the multi-megawatt range. Gearless and with permanent magnet technology instead of excitation power and gearbox losses. The full enclosure protects the interior of the generator and heat exchanger cooling system from salty and humid air, dust and dirt. And the even more compact toothed belt drive for the blade pitch system on the VENSYS 2.5 MW operates with a minimum of maintenance and is virtually wear-free. Because less is more.
          VENSYS has extended the rotor diameter in the 2.5 MW class to 100, 109 and 112 meters - for use in most wind regions. Despite the significant increase in performance and the extended rotor area its tower head mass is remarkably low. Further information can be obtained from the data sheet.

          The favourite for the multi-megawatt class
          Product advantages:
          • Dispensing with a gearbox means less repair work and lower maintenance costs while at the same time enjoying a higher yield, especially when working in the partial-load range.
          • High-quality permanent magnets save excitation power, resulting in higher energy yields.
          • The generator and the air-to-air heat exchanger cooling system are fully enclosed, protecting the system against salty and humid air as well as dust and dirt.
          • The blade pitch system with a toothed belt drive works without lubrication and keeps wear and maintenance to a minimum.

          Simply innovative, this is our solution for the 2.5 MW class. Suitable for all wind conditions and featuring a distinctly low tower head mass. It complies with all grid requirements and qualifies for the “Systems Service Bonus”
            • VENSYS 100

            • Rated power: 2500 kW
              Rotor diameter: 99.8 m
              Swept area: 7,823 m²
              Speed range: 6,5-14,5 rpm
              Operational data:
              Cut-in wind speed: 3 m/s
              Nominal wind speed: 10,9 m/s
              Cut-out wind speed: 25 m/s
              Speed control: variable, microprocessor controlled remote monitoring
              Gearbox: No gears
              Power control: Pitch
              Grid Connection: frequency converter
              Yawing System: electrical drive motor
              Control system: microprocessor controlled
              Brakes: single pitch-control / triple redundant
              Tower: tubular steel tower 100m
            • VENSYS 109

            • Rated power: 2500 kW
              Rotor diameter: 108.9 m
              Swept area: 9,314 m²
              Speed range: 6.5-14 rpm
              Operational data:
              Cut-in wind speed: 3 m/s
              Nominal wind speed: 10,1 m/s
              Cut-out wind speed: 25 m/s
              Speed control: variable, microprocessor controlled remote monitoring
              Gearbox: No gears
              Power control: Pitch
              Grid Connection: frequency converter
              Yawing System: electrical drive motor
              Control system: microprocessor controlled
              Brakes: single pitch-control / triple redundant
              Tower: tubular steel tower 95m / 145m
            • VENSYS 112

            • Rated power: 2500 kW
              Rotor diameter: 112.5 m
              Swept area: 9,940 m²
              Speed range: 6.5-13.6 rpm
              Operational data:
              Cut-in wind speed: 3 m/s
              Nominal wind speed: 9,9 m/s
              Cut-out wind speed: 25 m/s
              Speed control: variable, microprocessor controlled remote monitoring
              Gearbox: No gears
              Power control: Pitch
              Grid Connection: frequency converter
              Yawing System: electrical drive motor
              Control system: microprocessor controlled
              Brakes: single pitch-control / triple redundant
              Tower: tubular steel tower 93.5m / 143.5m
          • VENSYS 3 MW

          • The new VENSYS 3 MW platform is based on the proven technology of the successful 2.5 MW platform. With a rotor diameter of up to 120 meters and a hub height of up to 140 meters the new 3 MW platform is also perfectly suited to locations with poor wind conditions.

            The VENSYS 3 MW platform comes with the five technological features common to VENSYS wind energy technology that has stood the test of time in the most diverse wind regions all over the world.


            The new alternative for the 3 MW class
            • We deliberately dispense with a gearbox, thus reducing repair and maintenance costs. The product´s main feature, however, is the significantly increased yield, especially in the partial-load range.
            • Both the generator and the air-to-air heat exchanger cooling system are fully encapsulated, dispensing with the need for additional cooling liquids or oils – environmentally a step in the right direction.
            • The use of high-quality permanent magnets instead of electrical excitation power results in higher electricity production.

            The gearless alternative from VENSYS for the 3 MW class. The new VENSYS 3 MW platform is based on the proven technology of the successful 2.5 MW wind turbine. With a rotor diameter of up to 120 meters and a hub height of up to 140 meters the new 3 MW platform is also perfectly suited to locations with poor wind conditions.
              • VENSYS 112

              • Rated power: 3,000 kW
                Rotor diameter: 112 m
                Swept area: 9,940 m2
                Speed range: 6.5-13.6 rpm
                Cut-in wind speed: 3 - 25 m/s
                Hub height: 93.5m - 140m
                Certification IEC: lla
              • VENSYS 120

              • Rated power: 3000 kW
                Rotor diameter: 120 m
                Swept area:11,291 m2
                Speed range: 6.5-12.8 rpm
                Cut-in wind speed: 3 - 22 m/s
                Hub height:
                90m - 140m
                Certification IEC: lla
            • Technology

            • Five distinctive features
              The success of VENSYS wind turbines is based on five technological features founded on the basic principle of generating the maximum amount of energy while minimizing losses.
              Beyond that principle, the VENSYS design philosophy is very simple: limit yourself to few high-quality construction parts, reduce the number of wear parts and only use durable components
                • Generator

                • The Generator: We don´t bother with a gear unit – you shouldn´t, either!
                  VENSYS wind turbines don’t need high-maintenance gear units that are highly susceptible to wear. They are based on the generator concept of a synchronous machine with permanent magnet excitation. The rotating speed of the rotor is transferred directly to the multi-polar generator. The gearless technology combined with savings in excitation power result in a higher energy yield. With the 1.5 MW platform, the generator is cooled by outside air. The VENSYS frequency converter is also air-cooled.

                  In the VENSYS 2.5 MW platform, the cooling system is a closed circuit. The air-to-air heat exchanger eliminates the need for additional cooling fluid. The full enclosure protects the winding and the interior of the generator from external influences, such as salty and humid air, dust and dirt. The VENSYS 2.5 MW platform comes with rotor diameters of 100m, 109m or 112m, thus making sure yields are maximized. Thanks to the compact design, its tower head mass is remarkably low.
                • Permanent Magnet Technology

                • High energy conversion efficiency = higher yield
                  VENSYS makes it possible to utilize permanent magnet technology as used in electric drives in navigation and electric vehicles for wind energy technology. VENSYS wind turbines are equipped with a directly driven synchronous generator with permanent magnet excitation. High-quality permanent magnets are fixed to the outer shell of the rotor. Simple yet innovative.

                  No excitation losses = even higher yield
                  In contrast to electrical excitation, permanent magnet technology does not have the disadvantage of additional excitation losses. The savings in excitation power are thus fully available as additional energy yield in VENSYS wind turbines.

                  This is a major asset especially when working in the partial-load range and helps to reduce the heat in the generator. Also, there is no need to transfer the excitation power with slip rings
                • Blade Pitch

                • The Blade Pitch System
                  One special technical feature of VENSYS wind turbines is the lubrication-free and low-maintenance toothed belt which transmits the force between the pitch drive and the rotor blade. Our drive system minimizes wear and increases safety.
                  The drive of the blade is equipped with an energy storage device (capacitor) which makes it possible to drive the blades into braking position in the event of a grid blackout. The capacitors can deliver the necessary power even in low temperatures. An additional asset is their long service life.

                  Our innovative toothed belt drive for the blade pitch system has stood the test of time: for more than 20 years now. In more than 11,700 wind turbines around the world – and under the most different regional conditions: in strong wind areas just as much as on inland sites with increased hub height.
                • Grid Connection

                • The Grid Connection
                  The feed-in of short-circuit current, the quick separation from the grid or the opposite, the bridging of short-term voltage drops in the grid: All these are power plant properties offered by VENSYS wind turbines. Thanks to our full power converter system developed especially for this purpose, they meet the requirements and regulations of the various grid operators. The total power produced is directed via a VENSYS converter, which makes it possible to decouple the generator fully from the grid. This means that faults or voltage fluctuations in the grid cannot affect the control behavior of the VENSYS wind turbine. The converter covers a wide idle power range (see graphic) and is able to support weak grids as well. Specifically for the German market, VENSYS wind turbines have been certified for the systems service bonus (Systemdienstleistungsbonus - SDL), thus meeting a legal requirement for a higher remuneration for electricity fed into the grid.
                • Generator Cooling

                • The Generator Cooling
                  The generator is one of the core elements in the nacelle of any wind turbine. Generating electricity always entails the loss of heat, causing the copper windings to heat up. To avoid damage to the generator, the heat must be dissipated. VENSYS generators in 1.5 MW platforms are cooled making use of the external air flowing in directly through the cooling fins.

                  As the generator in the 2.5 MW platform has higher power density, VENSYS development engineers have taken the cooling concept to a higher level. The result: A fully encapsulated active air cooling system with an air-to-air heat exchanger. Clean air flows through the stator winding and dissipates the heat where the highest temperatures occur. An equally robust and effective system which completely dispenses with additional working materials such as cooling liquids or oils – a step in the right direction, also from an ecological point of view.
              • Service / Components

              • Five distinctive features
                The success of VENSYS wind turbines is based on five technological features founded on the basic principle of generating the maximum amount of energy while minimizing losses.
                Beyond that principle, the VENSYS design philosophy is very simple: limit yourself to few high-quality construction parts, reduce the number of wear parts and only use durable components
                  • Service

                  • Service: Our main focus is on your system – around the clock
                    Making sure VENSYS wind turbines perform at their best over decades is what the VENSYS Service team is motivated by. We can control your wind turbine 24 hours a day using remote data monitoring. Around the clock, year in, year out. As a client you can log into your wind park or receive e-mail notifications from us to keep you informed at all times about the current status and the kilowatt hours produced.

                    Services are coordinated globally by office-based VENSYS employees via our cooperation partners on site. The office also provides competent client support for all technical questions. We offer a full maintenance agreement which includes all repair and service work - on a long-term basis. Additionally, we guarantee you high turbine availability.
                  • Components

                  • High-quality components
                    VENSYS manufactures its own nacelles, generators, converter systems and electrical switchgear systems. For other components, VENSYS relies on experienced suppliers who manufacture high-quality products and have a wide network of production facilities which enables them to supply components for VENSYS wind turbines - quickly, reliably and flawlessly.