Focus: Technical Perspective | 30MWp into 2x60MVA Transmission Substation | Grid Engineering | Kabba, Kogi State Integrating 30MWp of photovoltaic generation into a 2x60MVA transmission substation is a demanding exercise in grid engineering. Here is why it matters and what it involves. Most solar projects in rural Nigeria have been mini-grids: self-contained systems serving a defined community. The 30MWp Solarization of the 2x60MVA Transmission Substation at Kabba, Kogi State , awarded by REA to ICC Offshore SAL in March 2020, belongs to a different category. It connects utility-scale solar to high-voltage grid infrastructure. 120MVA substation — 2x60MVA transformers. (1k/low) Understanding the Substation: 120MVA Capacity A transmission substation is a node where power arriving over high-voltage lines is transformed down to lower voltages for distribution. Kabba's two 60MVA transformers give combined capacity of 120MVA . A 30MWp solar plant therefore represents substantial ...