In 2019–2020, the Electrum Group completed the electrical infrastructure for connecting 55 solar farms with a total capacity of 55 MWp and created a microgrid for 10 households powered by a smart MV network. Our tasks included variable building design, complete execution designs, and the construction of a 20/110 kV GPO substation, 13.5 km of 110 kV cable lines, 25 km of cable networks, and 10.5 km of dual-circuit lines. We also provided a SCADA system with monitoring of inverters and trackers, and conducted comprehensive testing, measurements, and commissioning.