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Information on Renewable Energy Solutions

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Alternative Energy

Solar PV, Wind Turbines, Solar Thermal & LED Lighting


Endurance E3120 - 50kW Wind Turbine

The G and E Series Endurance Wind Turbines are designed for larger farms, irrigation pivots, schools, hospitals, manufacturing and fabrication companies and any other applications requiring  125,000 - 250,000 kWh per year of electricity.



Configuration:              3 blades, horizontal axis, downwind

Rated power @ 11 m/s: 55 kW

Applications:                Direct Grid-Tie

Rotor speed:                42 rpm

Cut-in wind speed:       3.5 m/s (7.8 mph)

Cut-out wind speed:     25 m/s (56 mph)

Survival wind speed:    52 m/s (116 mph)

Design lifetime:           30 years *

Overall weight:           3,990 kg (8,800 lbs.)


Rotor diameter:          19.2m (63 ft.)

Swept area:               290m² (3120 ft²)

Blade length:              9m (29.53 ft.)

Blade material:          Fiberglass / Epoxy

Power regulation:      Stall control (constant speed)


Type:                        Induction Generator

Configuration:            3Φ, 480 VAC or 600 VAC @ 60 Hz 3Φ, 400 VAC @ 50 Hz Single phase available.

Brake & Safety Systems

Main brake system:     Rapid fail-safe dual mechanical brakes

Secondary safety:       Pitch control system (for over speed regulation) using passive spring loaded mechanism                                 (patent pending)

Automatic shutdown triggered by :


Control System:          Programmable logic controller (PLC)

User Interface:           Wireless or wired networked software interface for remote monitoring and control


Types and heights:      Free-standing monopole: 30.5 m (100 ft.), 36.5 m (120 ft.), 42.7 m (140 ft.)

Free-standing lattice:  30.5 m (100 ft.), 36.5 m (120 ft.), 42.7 m (140 ft.)

Maintenance Access:   Safe climbing system

                               Working space inside the nacelle

                               Tower-top work platform

*Provided service and maintenance schedules are strictly followed