The biggest Polish wind-power station has been installed in the commune of Darłowo. Between Cisowo and Kopań, the Energia-Eco Company commissioned nine windmills. This is one of the biggest wind-power station in Europe: the biggest installed power generation capacity of 2 MW each, having a height of 118 meters (including wings) and weight of 225 tons each. The total production capacity of the nine turbines is 55 GWh (In comparison, the average household energy consumption reaches 10 000 kWh per year). The windmill-power station in Cisowo is the largest power-station in Europe in number as well as in size. The total cost of investment is about 90 million zlotys. The installation is financed in cooperation with Eko Fund and The National Fund for Environmental Protection and Water Management.

The production of electricity from renewable sources in developed countries (European Union) is being dynamically developed. The Governments of these countries are determined to support production of electricity from renewable sources. Converting part of energy production from conventional power stations to windmill power stations, lowers the air pollution, not to mention the greenhouse gases.

In December 2001, the Ministry of Economy, to protect the environment, issued a decree under which every energy company is obliged to buy 2,4% of energy from renewable sources in 2001 (for e.g.: from wind-powered stations). In the following years this share of "ecological" energy must be increased to 7,5% by 2010. This process is in line with The European Union requirements, where the norm says, about 12-15% of energy should come from renewable sources of energy.

However, the price of "ecological" energy is higher than the price of energy produced in conventional power-stations. The pro-ecological character of such undertakings is very important. Buying "pure" energy, we save on environmental protection spendings as well as protect our environment. Taking this into account we can see that renewable sources are cheaper. Questions like - what would be the cost of purifying the air in the Katowice region - gets us closer to the above mentioned conclusion.

Utilizing the wind power to produce 55 300 MWh (Energia-Eco Companys planned yearly production) of electricity will avoid emissions of about: 431,34 tons of SO₂, 176,96 tons of NO₂, 51,816 tons of CO₂, 11,06 tons of CO and 60,83 tons of dusts in the atmosphere per year.