With the U.S. rapidly increasing its renewable energy generation, energy storage, and power consumption, solar, wind, and BESS developers need many substations to interconnect with the grid. Meanwhile, developers are building many large-scale data centers to meet the insatiable power demands of booming artificial intelligence applications, which also need dedicated substations to draw power from the grid.

The critical components of substations are power transformers, high-voltage dead tank circuit breakers, current transformers, and voltage transformers.

Power transformers: generator step-up, substation, three-phase, liquid-filled, high voltage up to 750 kV, power rating up to 700 MVA.

Dead tank circuit breakers: voltage to 800 kV, short current up to 63 kA, Gang-operated and IPO, SF6 gas insulated

Live tank circuit breakers: voltage to 1,100 kV, short current up to 63 kA.

Current transformers, voltage transformers, combined current/voltage transformers: voltage to 550 kV.