Because of deteriorating condition of the environment and more and more difficult situation on the market of energy fuels, the role of renewable energy sources is increasing. In the paper an analysis was performed on the development limitations and perspectives of renewable energy sources on the Polish market. The analysis conducted shows that the renewable energy sources start to be used in a bigger scale in Poland. It may also be noticed that the significance of the particular renewable energy sources is dynamically changing in time. In year 2005 hydropower was largely dominating among the renewable energy sources, however, in 2016 wind power was clearly prevailing. One of the most important factors determining the development of renewable energy sources in Poland are legal conditions. They were subject to analysis, taking into account the European Union regulations and Polish regulations. The research was based on literature review, analysis of legal regulations and of data coming from the reports and statistics published by the Central Statistical Office, Ministry of Energy, Ministry of Environment, Energy Regulatory Office, Fund for Environmental Protection and Water Management, and other organizations.
 “Act of 20thFebruary 2015 on the Renewable Sources of Energy”. Journal of Laws of 2015, item 487.
 Ministry of Environment. “Renewable energy sources”. Internet: www.mos.gov.pl/srodowisko/odnawialne-zrodla-energii, [May 28, 2018].
 “Act of 22ndJune 2016 on Changing the Act on Renewable Sources of Energy and other acts”. Journal of Laws of 2016, item 925.
 “Act of 10thApril 1997 - Energy Law Act”. Journal of Laws of 1997, no. 54, item 348, as amended.
 “Directive 2009/28/EC of the European Parliament and of the Council of 23 April 2009 on the promotion of the use of energy from renewable sources and amending and subsequently repealing Directives 2001/77/EC and 2003/30/EC”. Official Journal of the European Union of 2009, no. L140/16.
 “Act of 21st April 2001 - Environmental Protection Law”. Journal of Laws of 2001, item 1232 as amended.
 “Act of 8thOctober 2008 on Environmental Information and its Protection, Public Participation in Environment Protection and on Environmental Impact Assessments”. Journal of Laws of 2013, item 1235, as amended.
 “Act of 20thMay 2015 on Investment in Wind Power Plants”. Journal of Laws of 2015, item 961.
 “Reports of Energy Regulatory Office”. Energy Regulatory Office, 2005-2017.
 W. Lewandowski. Proekologiczne odnawialne źródła energii. Warszawa: WNT, 2007.