2.5KW Proven turbines


Proven 2.5
Generates 2.5kW, and is a similar height to a telegraph pole. The Proven 2.5 can make a substantial contribution to the power required by electrical appliances in a standard 3 bedroom house (excluding heating). The robust 2.5 is also ideal for small lighting systems (Network Rail Stations, Sainsbur y’s) and offshore power (Shell Nor th Sea Oil Platforms).

Technical Specification Sheet
MODEL Proven 2.5 (2.5kW)
Cut In (m/s)1 2.5
Cut Out m/s) None
Survival m/s) 70
Rated (m/s) 12
Rotor Type Downwind, Self Regulating
No. of Blades 3
Blade Material Polypropylene
Rotor Diameter(m) 3.5
Generator Type Brushless, Direct Drive,
Permanent Magnet
Battery charging 24 or 48V DC
Grid connect with
Windy Boy Inverter 230Vac 50Hz or
240 Vac 60Hz
Direct Heating 240Vac
Rated RPM 300
Annual Output2 2,500-5,000 kWh
Head Weight (kg) 190
Mast Type Tilt-up, tapered, self-supporting,
no guy wires (Taller guyed towers
also available on request)
Hub Height (m) 6.5 or 11
WT Found (m) 1.6×1.6×1 or 2.5×2.5×1
Winch Found (m) 0.65×0.65×0.65 or 1x1x1
Tower Weight (kg) 241 or 445
Mechanical Brake Yes
Noise3 @ 5m/s 40 dBA
Noise @ 20m/s 60 dBA
Rotor Thrust (kN) 5

Marine Build Quality
All machines are manufactured with galvanized steel, stainless steel & plastic component.