GRICUA was formed in 1998 to serve the Community's Wild Horse Pass Casino. In 2008, the Gila River Indian Community Council approved the 638 Contract for GRICUA to assume responsibility for maintaining & operating the SCIP electric system on the Gila River Indian Community Reservation. In 2018, all SCIP residential and commercial customers were transferred to GRICUA. GRICUA's electric system consists of 10 substations, 95 miles of 69 kV transmission lines and 425 miles of 12 kV distribution lines. GRICUA purchases wholesale power from various generating sources and in turn delivers it to over 3400 customers.