The largest floating wind turbine so far has been operational off the Portuguese coast since Friday. The turbine, with a capacity of 8.4 megawatts, is the first of three wind turbines on the floating wind farm. The wind turbines, with a combined capacity of 25 megawatts, partly serve as a pilot project to test the viability of the technology.

The wind turbines will produce just as much green energy as sixty thousand households use each year, says developer EDP Renewable, ENGIE, Repsol and Principle Power.

This is the second floating wind farm in Europe. Earlier, floating windmills were installed off the Scottish coast.

Offshore wind turbines are especially easy to install in shallow places. For example, there is a lot of room in the North Sea for offshore wind turbines due to the favorable water depth.

But some countries, such as France, South Korea and Japan, have less room for this, but still have the ambition to produce green electricity.

To make it possible that green electricity can be produced from wind turbines, developers are working on floating turbines. These turbines are fixed in one place with several anchors.

The wind turbines off the coast of Portugal are floating at a location with a water depth of 100 meters. Conventional offshore wind turbines are now being built at depths of up to 50 to 55 meters.