Buy your Power Predictor

Login

ROPATEC Easy Vertical WindRotor 1KW Wind Turbine

Italian-made vertical axis wind turbine, one of a series of sizes from 300W to 20kW.

This is the 1kW model. It has a relatively low start-up windspeed and is apparently noiseless. The manufacturer's website is fairly bereft of technical details but we seek more. There is what seems to be a clever power calculator spreadsheet but it is worded all in Italian.

Wind turbines

Swept area

The Ropatec 1kW has a blade diameter of 1.80 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.

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!