The Old Gold Energy Center, located in Joice, Iowa, operates within the Midwest Reliability Organization (MRO) region. This facility utilizes advanced wind turbine technology to achieve an operating capacity of 80 megawatts (MW). The power generated is managed under the Midcontinent Independent System Operator (MISO) control area. Castlelake serves as both the plant operator and the majority owner, with the regulatory status classified as unregulated. The Old Gold Energy Center exemplifies a commitment to renewable energy through its exclusive use of wind as a fuel source, aligning with contemporary sustainability goals.