Archive for May, 2009
Noise, technical hitches and delays
We apologise to those who had expected us to sell turbines in the third week of April. We hit a technical hitch with vibration and some noise as a result. Because our turbines don’t have an iron core, they have much sharper pole changes as the magnet passes the coil, and this seems to cause [...]
Pinnacle wing to reduce tower shadow
Our new pinnacle wing and cowlings are finally in production after many delays. These mouldings give a superb finish to the appearance of the turbine, but they are more than a pretty face…. The cowling reduces wind drag at the hub, giving a free flow of air over the generator to the root of the [...]
Raising and lowering the tower
We believe it is essential to have a safe and simple way of raising and lowering the wind turbine. There are various systems used, the most popular one being to have an anchor point and winch using a “gin pole”. This requires an extra cubic meter of concrete for the anchor, and a fair bit [...]