The quietrevolution (QR) was designed in response to increasing demand for wind turbines that work well in environments close to people and buildings.

The elegant helical (twisted) design of QR 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.

Click here to see video footage of the qr5

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
	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
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: 19m/s; Min wind speed: 4.5m/s
Design life	25 years (annual inspections recommended)
Rotor construction	Carbon fibre and epoxy resin blades and connection arms
Power Regulation and shutdown	Power regulation above 14m/s wind speed, auto shutdown in high wind speeds (above 19m/s)
Roof mounting	3.5m/6m masts
Tower 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
Cost of qr5	£20,000 (includes rotor, mast, inverters)
Installation cost	£2,500 - £5,000 for ground mounted turbines

The energy output will vary according to the windspeed but is likely to be up to 7,500 kWhrs per year site wind dependent.

According to the government building regulations, distributed generation in the UK will reduce CO2 emmisions by 0.568kg of CO2 per kWh.