Susitna Energy Systems

Eocycle Technologies

Eocycle Technologies Inc. develops, manufactures and commercializes worldwide the EOCYCLE 25, a state-of-the-art 25 kW direct-drive wind turbine for distributed wind energy applications. Capitalizing on more than 12 years of internal R&D and prototyping, Eocycle Technologies stands out from its peers by being an integrated technology and manufacturing company. Eocycle Technologies relies on a world-class management and technical team which bring decades of complementary engineering, production and utility-scale wind industry experience, and on a network of well-established North American and European partners and suppliers.

Eocycle 25kW Direct Drive

Eocycle 25kw

Eocycle’s 25kW wind turbine represents the next generation of wind turbines. The innovative design makes the turbine safe and durable while maximizing energy production and minimizing noise. Making it ideal for use in:

  • Farms, ranches, and vineyards
  • Retail businesses and small to medium enterprises (SMEs)
  • Schools, colleges and universities
  • Government offices, pumping stations, water treatment facilities, parks, arenas, stadiums, museums, rest areas
  • Golf courses, training centers, hotels, recreational parks
  • Rural electrification for developing countries
  • Isolated sites and remote areas where diesel-powered generators are used for producing electricity (“wind-diesel”)


WIND TURBINE CHARACTERISTICS (for air density of 1,225 kg/m^3 and no air turbulence)

  • Turbine type: Horizontal axis, upwind, active yaw, variable speed, direct-drive generator, active electronic stall
  • Applications: Grid-tied distributed and hybrid diesel power generation
  • Design standards: IEC 61400-2, wind class IIA / AWEA Standard 9.1- 2009
  • Design lifetime: 20 years minimum (without major component replacement)
  • Rated power: 25 kW@ 11 m/s (25 mph) wind speed
  • Cut-In wind speed: 3.1 m/S (6.9 mph)
  • Cut-out wind speed: 25 m/S (56 mph)
  • Survival wind speed: 59.5 m/s (133 mph)
  • Operating temperatures: -20°C to +50°C (-4°F to +122°F)

NOMINAL POWER CURVE (for air density of 1,225kg/m^3 and no air turbulence)


Power Curve




  • Generator: Eocycle transverse flux synchronous permanent magnet
  • Generator characteristics: 25 kW @ 90 rpm, 54 A continuous duty, 1.15 SF, passively air cooled
  • Generator certifications: UL-1004 and CSA C22.2 No.100-04 listed
  • Power converter & controls: Eocycle PLC-based utility-interactive unit for power management turbine control and monitoring
  • Power converter characteristics: 45 kW, 480V, 60Hz, 60A
  • User's Interface: LCD touch screen
  • Power converter certifications: Ul-1741 and CSA C22.2 No.107.1·01 listed
  • Lightning protection: Blade-integrated mesh, lightning rod on nacelle and electrical surge protectors


  • Rotor diameter: 12.6m (41.3ft)
  • Rotor swept area: 125.1 m^2 (1347 ft^2)
  • Hub type: Fixed pitch
  • Number of blades: 3
  • Blade length: 6.0 m (19.7ft)
  • Blade material: Carbon/Glass Fiber/Epoxy Composite with integrated mesh for lightning protection


  • Normal shutdown: Generator stall. yaw assisted
  • Emergency shutdown: Generator stall with resistors, yaw and disk-brake assisted
  • Emergency rotor brake type: Fail-safe hydraulic disk brake


  • Type: Active electromechanical
  • Controls: PLC with wind direction/speed sensors. automatic cable unwind


  • Type: Tubular hot-dip galvanized monopole with work platform,
  • climbing step bolts and safety climbing cable
  • Heights: 24, 30 and 36m (80, 100 and 120ft)


  • 5 years on wind turbine and towers


  • Control/electrical system: 3-phase 600 VAC, single-phase 240 VAC, web-based turbine monitoring and reporting system
  • Nacelle: Cold weather package, FAA L-810 steady burning red LED obstruction light
  • Tower: Outside paint, ladder, tilt towers

Download Eocycle 25kw Datasheet

Please call store for pricing  907-337-1300