Frederik usually take care of windmill farms.
This farm can supply 600.000 households with electricity. There are some two million households in DK, so you do the math.
The aim is to ensure that DK is fully supplied with alternative carbon neutral energy by 2050.
At present we have windmills enough to supply all households in DK with energy, also on calm days, because there has to be a considerable surplus production, due to it not being possible - yet - to store energy in vast amounts. Energy is also lost being transported over considerable distances and so on, and so on.
But at least as many windmills as we have at present are needed to cover the energy need of all other functions in the society, from streetlamps, to hospitals to factories.
And at least as many windmills are required to cover the future need of energy in regards to transport. - Electric trains, cars, ships, planes etc.
China has build and tested 300+ meter high windmills and that must be considered the limit of what is practical to build.
They are expensive, the size no longer justify the output, they are costly to produce, transport and not least set up and they only last for about 12 years.
So mills the size of 200+ meter high are what must considered practical - and that's the size that are being build build and projected in DK now.
Investment-wise it's a hugely expensive building these parks!
That however is covered many times over by export and know how.
A side bonus of the windmill parks is that fish, birds, seals and clams settle down around the foundations of the mills. The same phenomenon seen at the pylons of the many bridges here in DK. - It's a good place to live if you have gills.