About us Our products Why Silentwind?

About us Established in 1993, Rulis Electrica, Lda is a Portuguese company with German management. We have thirty years of experience and know-how acquired with our work on small wind turbines on marine vessels under particularly difficult conditions, especially on the Portuguese coast and in Atlantic crossings. Our initial activity for the area of small wind turbines was the development of low noise rotorblades made of 100% carbon fiber material, hand laminated and UV-resistent. These blades were introduced in 2008 as replacement parts for a windgenerator well known on the market as very noisy. Due to their great success, we decided to develop and manufacture our own appropriate wind generator for our silent power blades. In the end of 2010, the commercialization of our Silentwind generator started and has become a worldwide success for sea and land use.

Why Silentwind? Safe Quiet Efficient Silent Quiet operation due to technical optimization of the rotor blades Reliable and Safe High-quality components and German engineering 3 year warranty for the wind generator and 2 years for the charge controller Complete and Versatile For marine and land use at low, middle and strong winds For professional applications Independent and Unlimited Wind and solar energy wherever you are! Ideal for Marine / Coastal applications Sea water resistant aluminum alloy with special treatment against corrosion, stainless steel screws and UV resistant rotor blades Compact, Practical and Elegant Lightweight 6.8 kg only Suitable for all types of sailboats and easy to install Ergonomic and aerodynamic design External wind and solar hybrid controller with multifunctional LCD display, and integrated manual and electronic switch-off, suitable for the installation of solar panels without the need for additional controllers

Our products Wind Generator 3 models: 12, 24 and 48V Weight of only 6,8kg Permanent-magnet 3-phase AC-generator with rated power of W Design-optimization in our own wind-tunnel Very good start-up performance due to low cogging torque at 2,2m/s wind speed (4 knots) Start-up charging from a wind intensity of 2,8 m/s (5 knots) Universal application for low, middle and strong winds For marine and land use and professional applications Durable and low maintenance

Our products Charge Controller The battery system-voltage (12v or 24V) is automatically detected Hybrid charge controller (wind and solar) with multifunctional LCD display and integrated, electronical automatic and manual brake system Free adjustable final charging voltage for all battery types Adjustable max. charging current Programmable user port for external consumers LCD-display of all relevant working data (W, A, V, Ah, kWh) Results: Significant performance increase Improved charging process for longer battery life time Maximum security

Our products Rotor Blades High-tech carbon fiber rotor blades Made of 100% Carbon-Fiber material – CFRP Hand laminated. By using High–Tensile carbon fibers in hand laminated application with epoxy-resin the blades get extremely resistant UV-resistant Wind channel optimized Ultra low noise emissions Balanced for low vibrations Outstanding strength to weight ratio Successfully tested according to DIN EN at hurricane speed 122km / h (5480 rpm, with almost speed of sound at the blade tips)

Our products Hybrid Set First class high power-monocrystalline solar panel 6 combinations available: 520W/12V, 620W/12V, 550W/24V, 650W/24V, 820W/12V and 850W/24V. Stable: double walled aluminum structure with the height of 35mm, anodized, in silver color Water resistant: U-bead filled up with glue. The edges of the laminate are glued in and sealed Optimized protection against torsion: aluminum frame reinforced with additional metal brackets at the edges No loss of power: bright silver frame to avoid too high temperatures of the panel and in consequence loss of power and efficiency Easy replacement of the diodes Easy assembly Quality assurance and certificates: DIN VDE protection class II RoHS - conform CE - conform

A new generation of wind turbine with Silent Power Blades: safe, quiet and efficient Approved by sailors throughout the world! Compact, Ergonomic, Aerodynamic Convenient, Affordable Reliable and Safe Complete and Versatile

Contacts: Rulis Eléctrica, Lda. Loteamento Industrial de Linhares, Lote 19 Briteiros / S. Estevão PT Guimarães Tel: Fax: Web: