On January 25, over 60 stakeholders from various sectors met in Warsaw to discuss the supply of heat through district energy systems in Poland, presenting other heating sources used in Poland and best-practice local and international examples. A keynote was given by the Ministry of Energy’s Vice Minister, who insisted to put more focus on heating and an efficient use of primary energy in the Polish energy laws, in need for revision. Smog and fuel poverty in Poland were highlighted as key problems by most speakers in their presentations. The HRE4 Peta4 tool was introduced, as well as the EU legislation. The workshop, organised by BPIE, under the framework of HRE4, and in cooperation with Forum Energii, also focused on available financing options and existing support programmes. Presentations and photos are available for download.