We worked with Consumers Energy as the engineer-procure-construct (EPC) contractor for a new 300-megawatt (MW_DC) solar project, providing enough power to support approximately 50,000 homes annually.

Our multidisciplinary team delivered comprehensive conceptual and detailed electrical, civil and structural design for the solar field, substation, generation tie-ins and interconnection systems. The project includes approximately 0.75 mile of new high-voltage transmission line that connects the facility to existing grid infrastructure.

Pile driving, equipment installation and electrical work was self-performed by our union construction subsidiary, AZCO. The civil and substation construction was subcontracted. The site used First Solar Series 7 bifacial modules in conjunction with an Array Technology single-axis tracking system.

A dedicated open-air 34.5/138-kV collector substation featured a single main power transformer (MPT) stepping up generation to a 138-kV dead-tank circuit breaker and onward to a single takeoff structure for interconnection. The team also designed a 20-by-40-foot control enclosure to house all relaying, protection, and control systems. A new single-circuit 138-kV transmission line, approximately one-half mile in length, was designed to connect the collector substation to the remote interconnection switchyard.