Evaluate Wind Turbine Solution
Overview of the R9000 solution
The turbine converts the energy from the wind into electricity using highly efficient, aerodynamic blades, which drive the generator, which in turn generates electricity.
The turbine is mounted onto a tower - the higher off the ground the more energy it will generate, as wind nearer the ground is slowed by friction with the earth’s surface. Obstructions, such as buildings and trees, will reduce wind speeds along with introducing turbulence.
Evance’s specialist engineers have designed two types of free standing monopole towers which are available in 10, 12, 15 and 18m (33, 40, 50 & 60 feet) heights.
The Ram tilt tower utilises Hydraulic Rams that are mounted to the tower and the tower foundation to raise and lower the tower.
The Gin pole tilt tower utilises a leverage arm (gin pole) during lowering/raising. The tilting mechanism is operated by an electrical/hydraulic winch that is fastened to a secondary concrete block by a system of pulleys and wire rope. Consequently, this system has one concrete foundation more than the Ram tilt tower.
The tower foundations are designed for minimal environmental impact - from just 1m2 surface area and only 3m3 concrete. Both types of towers are available with a root or a pad foundation. The choice will depend on the individual situation and ground condition. Generally we recommend the root foundation as it has minimal surface area and requires less concrete, so reducing the carbon footprint of your installation.
A cable needs to be installed between the base of the turbine and the elecrtrical system installed at the property (normally this will be below ground in a trench typically 60cm deep).
This illustration is for a twin turbine installation.
Converting power into useable electricity requires an inverter. This converts the variable voltage and frequency output of the turbine's generator into the 110/230VAC and 50/60hz typically required by a grid system.
The inverter also provides essential safety features to control the power output from the turbine, and will automatically disconnect if there is a mains power failure or the mains voltage/frequency goes out of limits.
Energy Output
Once you have your estimated annual mean wind speed you can see the expected annual energy that your turbine will produce and where applicable, the revenue that you can expect from your turbine.
For example, the Evance R9000 will generate 8,780kWh with an average annual wind speed of 5m/s and at 6m/s average annual wind speed will generate over 13,000kWh.
The R9000’s power curve and production data has been independently verified through the MCS certification scheme. For more information please refer to the R9000 performance page.
In the UK, the average electricity consumption is 4,800kWh per household per year.
The R9000 can generate 13,186kWh, based on an annual mean wind speed of 6m/s, more than enough electricity to run this household.