Today, most Danes have a close relationship with wind energy production, as wind turbines are spread across Denmark's entire geographical area, both on land and at sea. This is particularly important because the production of wind turbines is distributed, balanced and used efficiently in this way, as the wind often varies across the country. The many and widespread wind turbines on land and at sea thus contribute to ensuring the balance of the electricity system. And this is crucial for the high degree of security of supply that we require and for which we are some of the best in the world.

The reason why wind turbines can be stationary in windy weather is that the majority of electricity production in the Danish electricity system for long periods largely comes only from wind turbines. During these periods, wind turbines, in addition to green electricity production, also contribute to ensuring that electricity consumption and electricity production are always equal and in balance.

When a wind turbine is stationary in windy weather, it is probably because there is a challenge at that time with an imbalance between electricity consumption and electricity production. By shutting down the wind turbine, it has contributed to creating balance in the electricity system and this is necessary for the security of supply in the regional electricity system of which we are a part.

This should not be confused with the fact that there are too many wind turbines in Denmark, or that more are not needed. During most other hours of the year, all the wind energy we can produce and more is needed.

Wind energy is the most mature and efficient of the renewable energy technologies. In good locations, new, large wind turbines are now so competitive that green power from onshore wind turbines is currently the cheapest way to reduce CO2 from electricity production. When environmental costs and the purchase of CO2 quotas are taken into account, wind energy is the economically cheapest technology for electricity production.

But climate gains from reduced CO2 emissions are not the only benefits of wind turbines. The physical environment and public health are also positively affected when wind turbines replace fossil fuels in energy production and transport. Unlike the electricity and heat produced by wind turbines, the fossil fuels used in power plants and in wood-burning stoves emit polluting gases and particles.

Wind turbines and solar cells complement each other very well, as they usually produce best at different times of the year and under different weather conditions. This also makes maximum use of the grid connection.

A solar cell has produced on average the electricity that was used to manufacture it in one year. The lifespan of a solar panel is approx. 30 years – therefore a solar cell can produce 30 times as much energy as it took to produce the solar cell.

In 2020, the established solar parks in Denmark took up approx. 0.04% of the Danish agricultural area, and they produced almost 3.4% of Denmark's total energy production. In just two years, the power production of Danish solar cells increased by a whopping 76.5%, as they accounted for 6% of Denmark's energy production in 2022.

According to Dansk Solkraft's calculations, solar cell installations will take up approx. 0.5% of Danish agricultural area, if solar energy is expanded to have a capacity equivalent to 25% of the Danes' electricity consumption.

The Danish wind power industry has worked for many years to recycle as many of the components in a wind turbine as possible. The work has resulted in approx. 90 percent of a wind turbine today being reusable. This is after approx. 30 years of operation.

The approx. 10 percent that cannot yet be recycled consists mainly of blades and other composite parts. These parts are landfilled or used in cement production in Germany. A smaller part is used at home in e.g. noise barriers, bicycle sheds and playgrounds.

Wind turbines must meet noise requirements of 42 dB and 44 dB at 6 and 8 m/s, respectively, 24 hours a day. The noise requirements are set at these wind speeds, as this is where wind turbines make the most noise.

In particularly noise-sensitive areas, such as residential areas and holiday home areas, wind turbines must not make more than 37 dB or 39 dB at 6 and 8 m/s.

Wind turbines built after 1/1 2012 must meet the requirement of a maximum of 20 dB low-frequency noise to neighbours - counted inside the neighbouring house - 24 hours a day. The requirement applies regardless of whether the turbine is located in open land or near a noise-sensitive area.

Noise from new, large wind turbines has a relatively smaller proportion of low-frequency noise compared to older, large wind turbines.

Provided the sun is shining, wind turbines, like other structures, will cast a shadow over their surroundings. In wind turbines, shadowing occurs when the blades pass in front of the sun during rotation and cast a shadow for a short time, which is perceived as a blink.

In their management practice, municipalities follow guidance from the Ministry of the Environment, which recommends that neighboring properties should be exposed to a maximum of 10 hours of shadow time per year. The operation of the wind turbine is programmed to meet this requirement.