| Summary: | Poland, which has been a European Union member since 2004, has undertaken compliance with its commitments to increase its share in the generation of energy from renewable sources. The target set for 2020, which is to attain a share of 15 percent of the gross final consumption of energy coming from renewable sources, has been met by Poland. The new targets for 2030, incorporated in the draft the Energy Policy of Poland 2040, assume an increase to at least 23 percent of the proportion of energy obtained from renewable sources in the gross final energy consumption. On the basis of data from the Central Statistical Office, the authors of this work analysed the changes in electricity generation based on renewable energy sources. In the period of 2004–2021, it was stated that the percentages of individual renewable sources constitute 43.7% for wind energy, 35.3% for solid biofuels, 14% for hydropower, 4.2% for biogas, 2.5% for solar energy, and 0.3% for other sources (municipal waste and liquid biofuels). In addition, this work indicates the maximal relative changes in production and the maximal changes in the portion of production, in addition to the annual and periodic rate of changes in the production of these energy sources in Poland.
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