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Since the widespread utilisation of wind power has begun in the early 2000's, European countries are continuously working on the legislative environment of this renewable energy source. This has led to a wide variety of different support schemes and tariff systems. Experts agree that the Hungarian legislation system did not reach its goal. On one hand, scheduling accuracy of wind turbines is still far below international standards, and introduction of the penalty tariff was not an effective solution to reverse the process. The aim of the author is to solve this twofold problem with the redesign of the current obligatory electricity purchase and scheduling system, while taking into consideration new regulations of the European Union. The proposed system is also expected to allow the transmission system operator to decrease the amount of control reserves.

As the present trends show current policies lay more stress on using solar energy and renewable energy sources as some years before. There is a 175 000 TW power of solar energy, which came from the Sun. If it could be exploited, less than 10 % of this would be enough to cover the human economy. The solar energy has an important role in the reduction of the Ecological Footprint of humanity. This research would be offered a survey the global solar energy trends and the potential of building sector in Hungary. Furthermore, also the alternative energy sources appeared in the transport: many governments give financial assistance to the proliferation of electric cars. Government and policy support for renewable energy has increased considerably over the past decade. Two drivers underpin this trend: first, the effort to constrain growth in greenhouse-gas emissions and, second, concerns to diversify the supply mix (promoted particularly by high oil prices, especially in 2005-2008). To address these concerns, more and more governments are adopting targets and taking measures to enhance the share of renewables in the energy mix.