Rio Grande Electric Cooperative, Inc., Brackettville, Texas, has been awarded a maximum $8,780,760 modification (P00102) to a 50-year contract (SP0600-09-C-8258) with no option periods for electric utility services. This is a fixed-price with prospective price redetermination contract. The performance completion date is April 8, 2060. Using military service is Air Force. Type of appropriation is fiscal 2021 through 2060 operations and maintenance funds. The contracting activity is the Defense Logistics Agency Energy, Fort Belvoir, Virginia. (Awarded May 31, 2023).