To accommodate the incoming 110 kV cable line from RPZ Brzezińska, an expansion of the switchgear was planned, including an additional high-voltage line bay. The newly built bay was constructed using a classic system and equipped with a disconnect switch with earthing switch, circuit breaker, current transformers, and a 110 kV cable connector with earthing. The project included the installation of the new 110 kV bay in place of a decommissioned reserve bay in the H5 layout.An additional challenge during implementation was the requirement to perform works on an active 110 kV facility while maintaining all safety rules for this type of infrastructure.