The last three years in Poland have been a dynamic development of micro-photovoltaic installations. A serious barrier impeding the further development of this renewable energy source are obsolete power networks. The aim of the article is to analyze the conditions related to the development of photovoltaics in Poland and to evaluate the limitations of outdated power grids. This study was conducted and financed in the framework of the research projects: “Economic aspects of low carbon development in the countries of the Visegrad Group”, grant No. 2018/31/B/HS4/00485, “Socio-economic, environmental and technical determinants of the energy poverty in rural areas in Poland”, grant No. 2018/31/B/HS4/00048, granted by the National Science Centre, Poland, program OPUS, and “Economic conditions of energy storage in the context of the development of photovoltaic micro-installations in Poland”, grant No. 2021/05/X/HS4/01377, granted by the National Science Centre, Poland, program MINIATURA.

Keywords: photovoltaics, low-carbon development, economy, power grids, Poland