Matla a liphanele tsa letsatsi la photovoltaic hangata a hlalosoa ka li-watts (W), ka mohlala, mochine oa photovoltaic oa 100-watt o ka hlahisa li-watts tse 100 tsa motlakase.Boholo le matla a liphanele tsa photovoltaic li ka khethoa ho ea ka litlhoko, 'me li ka ba tse nyenyane, bakeng sa likopo tsa bolulo le tsa khoebo, kapa tse kholo, bakeng sa limela tse kholo tsa matla a letsatsi.