Diversification source of energy It is commonly known that countries sector of energy depends almost entirely on the coal. There has been a significant amount of research into these subject over the last few years which suggests that sources of coal in our country are still decreasing and will finish in the 30 years. It shows that dependence on the one source of energy may have a negative impact on industry and economy. It seems to be obvious that some serious steps must be taken into this subject to solve the problem as fast as it is possible. There is a widely held view that alternative sources of energy have a positive impact on the environment and the economy. On the other hand, the country must spend more money to encourage citizens to invest in this kind of new technology. The solar energy can be a very useful solution for each household however it depends entirely on the weather. As we know in the winter this solution can be unreliable because we have many days without sun. Accurately predicting the future is practically impossible to do however it seems to be obvious that some changes must be taken to exchange a coal as a basic source of energy. The government should anticipate new trends in energy's development and a new approach to the above problem must be his priority. One of the most noticeable examples, in this case, can be a nuclear energy. It may be very effective and reliable. Most of the European countries use nuclear plants and invest in the technology. In the past, we tried to build this plant but in the aftermath of Czarnobyl disaster, those plans have been abandoned. However, nowadays security measures are holding at the high level so the risk of the catastrophe seems to be little.