Analysis of possibilities and demand for energy in a public building using a tracking photovoltaic installationPaulina Sawicka-Chudy, Elżbieta Rybak-Wilusz, Maciej Sibiński, Ryszard Pawełek, Marian Cholewa and Michał KaczorE3S Web Conf., 49 (2018) 00096DOI: https://doi.org/10.1051/e3sconf/20184900096