Many years of cooperation with PGE Dystrybucja SA resulted in numerous implementations in facilities and stations such as GPZ 110 / MV and RS MV / MV. e²TANGO MV protection relays were installed in the amount of over 450 in 46 facilities, e²BRAVO circuit breakers in the amount of 70 in 17 facilities, and e²ALPHA switchgears in four GPZ stations. In addition, we have installed and launched a communication node and a telemechanics relay in four GPZ stations, which works with the MV protection of a given facility and sends signals to a supervisory system. We have also performed a series of modernization of MV bays in the bays of primary and secondary circuits in 30 GPZ stations in the area of ​​operation of PGE Dystrybucja SA, using our production equipment, i.e. e²TANGO protection units and e²BRAVO vacuum circuit breakers.