The team of USAID Municipal Energy Reform Project in Ukraine has conducted on June 10 the Sustainable Energy Day in Sumy. The Project information kiosk was put up in the city central park, and everyone was able to receive here a free advice and information brochures on the issues of energy saving, use of energy saving technologies and equipment, heat insulation of buildings, establishment of the condominiums and use of alternative energy source. The youngest visitors, together with the USAID Project team, were making the paper windmills and participated in the clean energy experiments. In such a way, the children and the USAID Project volunteers were discovering the world of renewable energy sources.