ampStay's cable-mounted wind turbine converts the yachts's backstay into a power generator and delivers silent, 24/7 electricity for sailing yachts. Noise and vibration are often the critical factor for sailors when it comes to adopting wind-based power solutions. ampStay is a worldwide unique innovation: a wind turbine which is whisper quiet and vibration free!
ampStay's worldwide unique, ip-protected helix-inspired wind turbine is mounted on a tensioned cable: the modular and lightweight wings turn flexible around the yacht's backstay like pearls on a necklace. The turbine has been tested and optimized for more then two years under harshest marine and alpine conditions and meet marine grade standards.
No additional structures required, the turbine is easy & quick to mount on almost any rigg.
Vibration-free and hardly to hear ampStay preserves the peace on board, at anchorage an in the marina.
Fast & easy to mount and dismount. Integrated precaustions for extreme wind & weather conditions.
Whether you're weekend cruising or crossing oceans, ampStay keeps navigation, lighting, refrigeration, hot water, and entertainment running without need to run the engine for battery charging. True autonomy, powered purely by the wind that already moves your sails.
Mounts directly onto a yachtʼs existing backstay, our turbine turns one of the most underutilised parts of the rig into a continuous source of clean electricity. Field-tested on prototypes across real sailing conditions, ampStay combines robust durability with dependable output — designed and (mostly) manufactured in Austria to the highest quality standards.The system is modular and can be adapted to the length of the stay, with rotor heights available from 7 to 10 metres. At the base of the system sits a generator producing between 600W for a 7-metre system and up to 1,000W with a 10-metre rotor, capable of generating electricity starting at 6 knots of wind and automatically regulating rotation speed in stronger conditions. A key design advantage is that the rotor harvests wind from any direction without needing to be tracked, making it equally effective whether at anchor or underway. An integrated MPPT charge controller feeds power constantly and reliably into the yachtʼs existing battery bank, with no significant modifications to the vesselʼs electrical infrastructure required.
Tested and proven on S/Y Release by 2025 Vice World Champion Sailing doublehanded Max Miller.
Corrosion- & UV-resistant construction engineered for saltwater environments and long service life.
Fast and easy to mount and dismount. Step-by-step manual, exploded views, and video guides make assembly straightforward — supported by our experts.
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A dedicated team of engineers, sailors, and renewable energy experts — backed by research partnerships and industry leaders.
Serial entrepreneur with a vision for sustainable wind energy for remote applications
Over 15 Years of experience in renewable energy technologies
Sailing expertise and hands-on service from installation guidance to global logistics.
Product development successfully finished by MVP evaluation, we are ready for the next phase: securing a partner to finance the series production of the turbine. With over 50 pre-orders already received, the company is eager to move quickly to meet the growing demand from impatient customers worldwide.