DROMEC Winches builds ingenious renewable for Kitepower

Kitepower, a Delft-based start-up, has developed a revolutionary system for an energy kite. This experiment by astronaut Wubbo Ockels was a dream and became a reality with the vision of Kitepower and is now fully operational in Ireland. DROMEC Winches made a significant contribution to the development of the system by designing and building the winches in the ground stations.

Electric winch system

With a winch specially developed by DROMEC Winches, electricity is generated by unrolling a cable connected to the circling kite. The pulling force of the kite is converted into electricity by the electric winch. With the help of a control system, the kite can automatically take off and land. A sustainable and efficient system. The winches from DROMEC Winches in the ground stations control the kite in a constant cycle up and down.

Kite cycle

In the cycle, the kite generates electricity for 96 seconds, after which it consumes electricity for 24 seconds. The system is powered by a winch system where braking provides energy to the grid. This electric drive has an asynchronous motor with a gearbox. It is equipped with a full-safe brake so that the motor can be switched off in case of an emergency. What’s special about the system are the ultracaps, which compensate for the cycle, ensuring continuous power delivery.

The kite can fly out to 200 to 300 meters with high power and low speed in a cycle of about 2 minutes and a total wire length of 450 meters. Then it is depowered and retracted at low power and high speed. With a start at altitude, the kite always has good wind capture.

Geerart de Vree, CTO Engineering:
‘We are working on a third 100kWh system for Kitepower to further innovate the principle so that we can scale up. With the upcoming projects, we aim to achieve even more flight hours and thus contribute to a sustainable world. Additionally, a new 30kWh system is in the works, which can be flexibly deployed in various locations. We have a great collaboration with Kitepower. It is at the cutting edge of what is possible and feasible. It is a skilled team, and the product is industrial-worthy, even in collaboration with aviation authorities.’


DROMEC Winches provides the control of the winch system. This must work in tandem with the kite control. With this control, the winch system can release energy at a speed of 3 meters per second as energy production speed. The retrieval speed is even around 11 meters per second. Sometimes, the system generates a peak of 200kW at very high wind speeds. With Kitepower, a stable way of generating energy is achieved because they can adjust the kite control to the wind speed and the width of the cycle.

Ahead of the wind

Kitepower is a pioneer leading in the top ten of the best kiters in the world. They are literally ‘ahead of the wind’. Energy kites can also be used as temporary energy sources, for example, in the event of natural disasters. This not only makes it sustainable but also serves a social purpose. Thus, together with Kitepower, DROMEC Winches contributes to a green future!

Read more about this system: https://thekitepower.com/the-hawk/

Dromec developed & build Kitepower groundstation

Vader Piet, Aruba, 14 October 2021 – Kitepower’s mobile Airborne Wind Energy System (AWES), the Falcon 100kW engineered & build by DROMEC, is the very first AWES to be operated in the Caribbean.

The deployment of the innovative wind energy system has been part of “Caribbean Engineer 2021 (CAEN21)”, a military exercise carried out by the Dutch Defence near the area of Vader Piet on the island of Aruba.

The ongoing operation is the follow-up of a five year long collaboration between the Dutch Ministry of Defence and the Delft-based Airborne Wind Energy (AWE) start-up.

For the complete KitePower press release click here >

Kitepower & Dromec: Building the New Generation of Wind Energy Systems

Kiterpower published a great testimonial about our tailor-made winches, winch systems, controls and power transmission. You can read the full article here: https://thekitepower.com/kitepower-and-dromec-building-the-new-generation-of-wind-energy-systems/

Dromec specializes in tailor-made winches, winch systems, renewables,  controls, reel machines and power transmission. Dromec’s approach assures the highest reliability in power transmission applications and boasts dynamic and innovative manufacturing techniques when it comes to winch systems. Such features had made Dromec a key development partner of Kitepower since day one, when back in 2015, at the time of REACH, the Dutch company has joined the mission to develop Kitepower’s first commercial Airborne Wind Energy System (AWES).

The role of Dromec is to manufacture the ground station (GS) of the Kitepower AWES, an exclusive development path that so far has brought to life two versions of Kitepower’s combined smart generator and winch system. Within a Kitepower system, the ground station is the component that converts the mechanical energy of the kite into electrical power and is also used to reel the kite in and out by using the generator as a motor.

Kitepower is proud to be cooperating with Dromec in the construction of an energy system capable to play a significant role in the EU’s energy mix and majorly contribute to the global energy transition to renewables.

For other Dromec Green Energy Systems see also www.floatingsolar.nl/en/

Working together on a safe and effective working environment. It’s the absolute team effort !

From small winch to complex custom solutions. Our team is specialized and certified and has gained an enormous amount of experience.

DROMEC winches. Your movement in good hands.

Dynamic and Innovative in winches, winchsystems, controls and software. With our enthousiastic team, we develop  from small till  very big & complex systems with the highest demands in terms of safety and ease of use. We also work very closely with certified body’s as DNVGL, BV, ABS, Lloyds so your winches and systems can be completely certified at our own company together with you.

It often starts with a good idea, preferably on a piece of scrap paper. After an initial consultation, we prepare one or more proposals, including a target price and preliminary drawing. Your idea or problem, always remains central in this. If the feeling on both sides is good, we start. Thanks to our own inhouse developed and written project software, your project stays in the picture and under control from start to finish, including the planning and delivery time. We are LloydsRegister ISO 9001 certified.