RT Journal Article SR Electronic A1 Turcek, Jan A1 Hrasko, Matej A1 Altus, Juraj T1 Photovoltaics in Present Days and Their Coexistence with Power System JF Communications - Scientific Letters of the University of Zilina YR 2011 VO 13 IS 11 SP 109 OP 113 DO 10.26552/com.C.2011.2A.109-113 UL https://komunikacie.uniza.sk/artkey/csl-201111-0019.php AB The article deals with the issue of presentation of photovoltaic power and photovoltaic power plants, describes their main features, their advantages and disadvantages, and also deals with the possible massive deployment of these power sources to the power system and their impacts on power system operation.