Is offshore wind power reliable?


Offshore wind is a highly reliable energy source. Wind turbines are able to generate clean energy out at sea, even when wind speeds seem low from the shore.

Question:


Is wind power reliable? Do consumers risk power outages if the wind stops blowing?

Fact:


Offshore wind turbines generate power almost all the time – and there will always be a backup option in the grid.


Near constant wind speeds at sea


The wind doesn’t often feel that powerful, does it? But out at sea, and hundreds of feet up in the air, the blades of offshore wind turbines are exposed to much faster and almost constant wind, allowing them to generate electricity even when things seem calm on dry land.

That’s one of the main benefits of situating offshore wind turbines far from the shore – along with drastically minimizing any visual impact.

Several offshore wind turbines juxtaposed with onshore energy sources, showing the reliability of offshore wind energy.

But what if there really is no wind?

Even out at sea, wind speeds do vary, and with them the amount of power wind turbines can produce. That’s why energy grids are supplied by a mixture of different sources, meaning that there’s always something producing power.

At Ørsted, we want to build a world that runs entirely on green energy. We’re sure that offshore wind will play a leading role here. But there will still be the flexibility to use other sources, like onshore wind, sustainable biomass, solar power, and large scale battery storage, to help balance the grid and ensure that the lights can always stay on.

Three blue offshore wind turbines show how often there is enough, too much, and not enough offshore wind to make energy.
Average figures based on data from selected Ørsted offshore wind farms in the North Sea
Close-up of an Ørsted offshore wind turbine, explaining how to reliably transform offshore wind into clean electricity.
What is offshore wind power?

Offshore wind power explained

How we capture the power of the wind at sea to produce clean, reliable electricity