Increasing the share of energy production from renewable sources plays a key role in the sustainable and more competitive development of the energy sector. The electricity from wind power is about 7.14% in Poland. There are only hard coal-fired plants and brown coal-fired plants before wind power in the Polish National Power System. The share of wind power is significant and a lot of scientists try to research its impact on the work on electricity production in centrally dispatched generating units. It should be noted that RES are an increasingly important element of the power systems and that their share in the energy production will continue to increase. The author analyzed the work of the Polish National Power System, especially: the load of the Polish Power System (domestic energy consumption, own needs of power plants, losses, pumping hydro plants, import and export), electricity generation in centrally dispatched generating units, electricity generation under intervention work and cold intervention reserve agreements and electricity generation in wind power in the year 2016. The objective of this article is researching the dependence between electricity generation in centrally dispatched generating units under intervention work and cold intervention reserve agreements and electricity generation from wind power. Moreover the author researched the connections between the load of the Polish Power System and electricity production form wind power.