Recently, Rockwill has successfully delivered and put into operation 400 prefabricated substations for Niger’s national grid upgrading and rural electrification program, effectively improving local power supply capacity and reliability.To adapt to Niger’s high-temperature, arid and dusty climate, these 20kV/0.4kV integrated compact substations are specially optimized with IP54 protection, anti-corrosion, sun-proof and dust-proof design, as well as high-efficiency heat dissipation sys