The Ostroleka Solar Project is a ground-mounted photovoltaic installation located in the Woidwodschaft Masowien, Ostroleka, Poland. The solar park covers an area of approximately 3 ha and features 7.400 high-efficiency photovoltaic modules with a total installed capacity of 4 MWp.

 

Photovoltaic farms were established in the areas where previously a furnace waste landfill was located. It was formed from the combustion of coal at the power plant in Ostrołęka. The use of photovoltaics in this place will make it possible to develop areas that are not suitable for use for other types of activities, because they were a landfill of slag and ashes for 35 years.

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The project has generated approximately 3,840 MWh of renewable electricity in 2025, equivalent to powering around 1,750 households annually, while avoiding roughly 2,500 tonnes of CO₂ emissions — comparable to taking around 700 cars off the road each year.