WIND ENERGY 2.0 The company Mechanical energy is generated by flying controlled cycles A and B with Twings and transformed into electrical energy in a ground based generator. TwingTec develops and produces innovative wind energy technology using tethered wings, or Twings. The first product of TwingTec is the TT50, the first mobile 50 kW renewable energy system. Higher altitude wind How does it work ? 150 Wind Retraction phase B Low cost of energy A 50 - Low investment and installation cost - Efficient energy production - More economical sites Minimal environmental impact - Minimal visibility and noise - Saves 90% of the material of a comparable wind turbine Operation altitude of TT50 Average wind speed Wind power density + 45 % + 200 % Wind turbine TT50 Wind turbine TT50 Power phase More economical sites 0 A Power phase: The Twing flies crosswind loops, and pulls on the tethers that spin the drum. The generator connected to the drum produces electrical power. B Retraction phase: Having reached a threshold altitude, the Twing is depowered and reeled in with minimal energy. A new power phase can then start. Mobile renewable energy - Compact system - Transportable on a trailer Typical hub height of a 50 kW wind turbine 100 Altitude [m] Why Twing power? 30 m 150 m Economical sites for a 50 kW wind turbine in Switzerland Economical sites for the TT50 in Switzerland Comparison Product: the TT50 50 kW 180’000 kWh per year 1 45 Solar PV Households Partners Wind Turbine Diesel Generator TT50 Twing Power 2 Tethers System size 3 Weight Generator Efficient Twing - High power per wing area - Access to higher wind Generator on the ground - Easy maintenance No tower - 90% material saving compared to wind turbine - Easy transport - Minimal environmental impact No foundation Autonomous operation No CO2 emission Eligible for Feed-in Tariff Mobile - Fast installation - Transportable 2 Required installed power for equivalent annual energy production 1 Based on simulated results 3 Photovoltaic surface vs. Rotor area vs. Twing area Contact Applications and customers Farmers Resorts Industries Communities On-grid - Energy cost savings - Additional revenue through feed-in tariffs Off-grid - Energy cost savings for fuel generator users - Only portable renewable energy system with competitive cost of energy Example: Developing countries with no established grid TwingTec AG c/o Empa Überlandstrasse 129 CH-8600 Dübendorf Switzerland Dr. Rolf Luchsinger Managing Director rolf.luchsinger@twingtec.ch +41 58 765 40 90 www.twingtec.ch