Tsarin adana makamashi (ESS), kamar yadda sunan ya nuna, tsari ne da ake amfani da shi don adana makamashi, wanda zai iya nufin canza makamashin lantarki a cikin tsarin wutar lantarki zuwa wani nau'in na'ura wanda zai iya adana makamashin don a iya mayar da shi zuwa makamashin lantarki lokacin da ake buƙata. Samar da wutar lantarki mara katsewa (UPS) tushen wutar lantarki ne wanda ke ba da wutar lantarki ta gaggawa ga kaya lokacin da babban wutar lantarki na kayan lantarki ya gaza, wanda ake amfani da shi don kare kayan aikin da ke da manyan buƙatu don kwanciyar hankali na wutar lantarki. Idan aka gaza, yana ba da wutar lantarki ta AC ta madadin kayan aikin ɗaukar wutar lantarki ba tare da katsewa ba don kiyaye aikin kayan lantarki na yau da kullun. Waɗannan gazawar sun haɗa da katsewar wutar lantarki, ƙarancin wutar lantarki, tsangwama ko ƙaruwa.

ESS gaba ɗaya ya bambanta da tsarin UPS.

Da farko, amfani da tsarin UPS wani shiri ne na gaggawa wanda ke faruwa lokacin da babban wutar lantarki ya gaza. Baya ga gaggawa, ana amfani da wutar lantarki a cikin ESS don ɗaukar nauyi mafi girma a lokuta da yawa, kuma ana amfani da shi don "yanke kololuwa da cika kwarin" da wasu nau'ikan makamashi, kamar wutar lantarki ta nukiliya, wutar lantarki ta iska, makamashin rana, da sauransu. Ana iya canja wurin wutar lantarki don rage farashi, ko kuma don taimakawa waɗannan hanyoyin samar da makamashi marasa ci gaba su kasance ana fitar da su akai-akai. Abu na biyu, UPS, a matsayin tsarin gaggawa, yawanci shine don kiyaye daidaiton wasu kayan aiki masu mahimmanci, don su sami lokacin kashewa akai-akai ko har sai an kunna wutar gaggawa, don haka tsawon lokacin ba ya da tsawo sosai, yana iya zama mintuna goma kawai ko ma mintuna kaɗan, sannan a kunna wutar gaggawa, wutar gaggawa na iya fitowa daga tsarin ESS ko wasu janareto masu jiran aiki. A ƙarshe, tsarin UPS kuma yana da kayan ajiyar makamashi, wasu tsarin UPS suna amfani da tsarin tashi don adana makamashi, wasu tsarin UPS suna amfani da tsarin batir don adana wutar lantarki, amma kuma a lokacin zaman lafiya don cajin tsarin ajiyar makamashi, lokacin da babban tsarin wutar lantarki ya gamu da gazawa, UPS yana fara samar da wutar lantarki mara katsewa.