Swept area

The Air Dolphin has a blade diameter of 1.80 metres. This means it has a swept area, or capture area of 2.55 square metres. The swept area is all important when comparing wind turbines, since it directly relates to the amount of passing wind energy the turbine blades can intercept.

Air Dolphin power output curve

The graph below shows the power produced (in watts) for the Air Dolphin at different wind speeds, based on data supplied by the manufacturer.

Whilst the above graph gives an indication of the instantaneous power you might expect from the Air Dolphin turbine, working out annual power production is more complex. The only way to know for sure is by measuring your wind speeds using an anemometer for a period of time and then working out what a generator like this would produce. Luckily, we've invented something that makes this easy, called the Power Predictor!

The Air Dolphin features a stall mode, where the turbine is only semi-braked in high winds, allowing energy generation to continue where other turbines stop.

Semplice quote £6000-£7000 for a residential installation package.

1.80 metres

1000

Yes

24 Volt

Zephyr Corporation (Japan)

Newly-designed low-noise blades.

Japan

Permanent magnet

18