ECI’s BESS work scope included design of a 260MW/4hr BESS system using 298 CATL 306Ah EnerC liquid Cooled Battery Containers with 75 Power Electronics FP4200M Power Converters. System included the design of Auxiliary equipment including (11) 1500kVA transformers and (11) 2000A main Lake Shore Electric Switchboards.

The complete project included a 34.5-500 kV Collection Substation with a 4-position straight bus (3 transformers, 1 line), two 170 MVA 500-34.5 kV GSUs, one 90 MVA 500-34.5 kV GSU, and three 34.5 kV collection bays, each with three breakers.

ECI’s BESS scope of services included:

• BESS System Integration
• Control / Communication Design
• Structural Design
• General Arrangement
• Medium Voltage Design and Protection
• Grounding and Surge Protection Design
• Schematic and Wiring Design