This is a specification page. Better Generation do not sell this product.
FuturEnergy's 1kW upwind turbine is based on two years development and testing in the uplands of Scotland and Warwickshire. The turbines are not suitable for mounting on buildings, but are designed for tower-top mounting. Guyed or free-standing towers are available, and the turbine sits on a standard scaffold pole - so you could come up with your own mounting solution too. There are different voltage versions suitable for battery charging or grid connection, although its worth noting that the 12V version is deliberately limited to a 600W output for safety reasons.
The FuturEnergy has a blade diameter of 1.80 metres. This means it has a swept area, or capture area of 2.54 square metres. This is all important when comparing wind turbines, since it directly relates to the amount of passing wind energy
the turbine blades can intercept.
FuturEnergy power output curve
The graph below shows the power produced (in watts) for the FuturEnergy at different wind speeds, based on
data supplied by the manufacturer.
The green line shows the actual output that the wind turbine achieves at the given wind speed,
according to the manufacturers.The dashed line in the graph shows the theoretical maximum energy that this turbine could extract from the wind,
according to Betz's Law (59.3%). At a typical wind speed of 5 m/s, the FuturEnergy is extracting
107 Watts of power from the wind, which is an efficiency of 54.7%.
Wind turbines can only convert some of the energy in the wind into electricity. The graph here shows how efficient the
turbine is across the range of wind speeds you might get.
The orange line in the above graph shows the efficiency ranging from 0 to 1. The grey line is the previously mentioned maximum efficiency - The Betz Limit. If this limit is exceeded, the manufacturer's claims are not to be trusted!
While these graphs give an indication of the instantaneous power and efficiencies you might expect from the FuturEnergy turbine, working out annual power production is more complex.
Decent length video showing a tower-mounted FuturEnergy 600W turbine on a battery charging set mounted on some lattice towers,
video credit: esperdahlsgaard
The cut in speed is about 3m/s.
£875.96 including VAT, plus £31.81 postage but this doesn't include the costs of the tower, or the installation, which will be extra. You'll also need to allow a few hundred pounds for the batteries, charging equipment, wires and other bits and bobs.
This seems like a great value deal, providing you are either able to do the DIY stuff, or find someone that can. It doesn't qualify for grant funding, but the idea is that the low price should stand on its own two feet without the grant assistance.
Rated output (W)
The turbine comes with a two year guarantee against defective workmanship. This doesn't cover you if you damage it yourself by doing something daft.