Through the concept of Renewable Energy Sources (RES ) Polish law understands: "the source that uses in the processing wind, solar , geothermal, wave, current and tidal rivers drop and energy as well as the energy derived from biomass, landfill biogas and the biogas produced in the process of discharge or sewage treatment or decomposition of plant and animal remains ." The rising prices of conventional energy sources: coal, natural gas , petroleum, their limited resources, and legal regulations of the European Community force the use of alternative energy sources.

Investing in renewable energy sources and the use of the resulting energy brings a number of benefits related to the protection and improvement of the environment . Using RES eliminates therisk arising from the operation of conventional energy sources, which allows emission reduction: 

  • oxides of nitrogen and sulfur (responsible for acid rain)
  • carbon dioxide (contributing to the creation of the so-called greenhouse effect with the risk of climate change)
  • particulates (harmful to all living organisms )

The amount of waste generated in the process of obtaining energy is limited (or completelyeliminated).

1 MWh of electricity produced with the usage of renewable fuel prevents 563 tons of coal , 1,387 tons of lignite, more than 3 tons of sulfur oxide, more than one ton of nitrogen oxide, 792 kg of carbon dioxide.

The use of renewable energy sources in addition to the obvious environmental benefits, also entails social and economic benefits . First of all, the cost of energy production will be reduced, which may reduce energy bills. In addition, the development of RES guarantees:

  • increase in local energy security
  • partial independence from conventional fuels, thereby reduction of their imports
  • stability of energy supply and improvement in energy supply for the areas with poor infrastructure
  • creation of new jobs, both during the implementation and operation of investments
  • economic recovery
  • development of infrastructure: roads, transmission and distribution infrastructure
  • ability to obtain the European Union grants to promote environmental activities
  • promotion of a region as a modern and environmentally friendly

Taking into account the benefits of the use of RES as well as EU, international and environmental obligations, it can be concluded that the development of renewable energy sources in Poland will be more and more dynamic.