Swept area

The Ropatec 1kW 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.

Ropatec 1kW power output curve

The graph below shows the power produced (in watts) for the Ropatec 1kW 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 Ropatec 1kW 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 Ropatec 1kW wind turbine in action

Ropatec vertical axis wind turbines

1.80 metres

1000

ROPATEC GmbH