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qr5 wind turbine

The quietrevolution™ qr5 was designed in response to increasing demand for wind turbines that work well in the urban environment, where wind speeds are lower and wind directions change frequently.

The elegant helical (twisted) design of the qr5 ensures a robust performance even in turbulent winds. It is also responsible for virtually eliminating noise and vibration.

At five metres high and three metres in diameter, it is compact and easy to integrate, and with just one moving part, maintenance can be limited to an annual inspection.

Clients include major retailers, developers, government departments, schools and universities.

It has also won many awards for design and innovation since its launch, including the Rushlight Wind Power Award and the D&AD Award - Product Design 2007.

Rollover the markers on the diagram oppposite to see more

UK design and patent protected by quietrevolution™. Patent pending in additional global territories.

Turbine specification

Rated power Peak power at 15.5m/s is 8.2kW aerodynamic, 7.1kW DC, 6.0kW Grid
BWEA rated power at 11m/s is 4.6kW aerodynamic, 3.3kW DC, 2.3kW Grid
(N.B. when comparing turbine ratings please ensure that the windspeeds are like for like. Alternative manufacturers may not quote at the BWEA rating windspeed, therefore comparisons should be made using the power curve)
Physical dimensions 5m high x 3.1m in diameter
Generator Direct drive, mechanically integrated, weather sealed permanent magnet generator
Power control Peak power tracking constantly optimises turbine output for all sites and windspeeds
Operation mode Max wind speed: 16m/s; Min wind speed: 5m/s; Cut out: 19m/s
Design life 25 years (annual inspections recommended)
Rotor construction Carbon fibre and epoxy resin blades and connection arms
Brake and shutdown Overspeed braking above 14m/s wind speed, auto shutdown in high wind speeds (above 16m/s)
Roof mounting 3.5m/6m masts
Ground mounting 15m mast
Remote monitoring Event log can be accessed via PC. Remote monitoring stores operation, average wind speeds and kW hours of electricity generated
Warranty Two years on components
Approximate cost £20,000 this includes the Rotor, 15m tilt down galvanised mast, electronics (generator inverters and metering boards) & 85m cable (N.B. Planning, installation and commissioning, delivery, foundations, ground works, or steelwork as these are site specific and at additional cost)
Lead time 6 months

For a prediction on what a qr5 turbine might generate at a particular site, please contact us to discuss. Alternatively read about wind assessment at our website. The minimum recommended average wind speed (AMWS) for a qr5 is 5.5m/s.

The energy output will vary according to the wind speed but is likely to up to 7,500kWh per annum depending on location.

Prices quoted exclude VAT at the prevailing rate

The qr5 in detail

The qr5's innovative design is both technically advanced and elegant.

See the qr5 running, click on the play button above

qr5 VAWT blades vertical-axis helical materials generator

This type of wind turbine is ideally suited to urban deployment locations with their small footprint, quiet operation and elegant design.