qr5 | quietrevolution

The quietrevolution (QR) 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 QR ensures a robust performance even in turbulent winds. It is also responsible for virtually eliminating all 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. Pre-launch clients include architects, developers and local councils, all of whom share a common vision of renewable energy with sophisticated design. Click here to see video footage of the QR5 at our test site. Rollover the hotspots to see a close up of each feature.
		Three ‘S’ shaped blades are tapered to shed noise
		The vertical axis is easy to integrate with existing masts and buildings
		The helical (twisted) design captures turbulent winds and eliminates vibration
		Central compression spar, dependent on conditions
		The blades, spars and torque tube are made of robust carbon fibre, and all moving parts are sealed to minimise maintenance
		The direct drive in-line generator has auto-shutdown and peak power tracking and is incorporated into the mast
UK design and patent protected. Patent pending in additional global territories.

Physical dimensions

5m high x 3.1m in diameter

Illustrative Payback Period:
Average Wind Speed	5.9m/s
Annual energy generated (kWh)	10,000
Price for energy offset	9p
Price for ROCs	4.7p
Inflation in energy prices	5%
Annual value generated	£2,108
QR price	£25,000
Installation cost	£8000
Total cost	£33,000
Payback period	18 years
Assumptions: 5.9m/s - On medium rise building tops or exposed sites 10,000 - (XC02 calculations) 9p - Average green energy price 4.7p - Today's value from Platts ROC Marker 5% - Predicted energy price increases Source: DTI and UBS £2,108 - Energy offset & ROCs incl. forecast inflation £25,000 - Single 6kW turbine, 5m high x3.1m diameter £8,000 - Estimate only, not including mounting/foundations.

quietrevolution will also save around .42kg of carbon dioxide per kilowatt hour of energy generated.

In the example above this would equate to 4,200kg per year or 105,000kg over the design life of the turbine.

Generator

Direct drive, mechanically integrated,weather sealed 6kW 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: 4m/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

Minimum recommended height above buildings: 3m

Tower mounting

Minimum mast height: 9m to bottom of blades. Demountable models are also available for temporary installations

Remote monitoring

Event log can be accessed via PC. Remote monitoring stores operation and kW hours of electricity generated

Warranty

Two years on components

Cost of turbine

£25,000

Installation cost

Around £5,000 - £10,000 depending on the site. Not including mounting/foundations

For more information on pricing please download the Turbine Price Guide from the fact sheet page.