F.E. Warren AFB Conducts ERRE Published June 9, 2026 By Airman 1st Class Nicholas Rowe 90th Missile Wing Public Affairs F.E. WARREN AIR FORCE BASE, Wyo. -- Members of F.E. Warren AFB conducted an Energy Resiliency Response Exercise (ERRE) on May 7, 2026, to test the base's ability to withstand, adapt, and overcome energy-related threats. An ERRE is a training event conducted to prepare base personnel for disruptions to critical energy systems. These exercises simulate real-world scenarios such as power outages, cyberattacks on infrastructure or fuel supply interruptions, ensuring installations can continue operating under adverse conditions. The primary objective of an ERRE is to strengthen a base’s ability to withstand, adapt and recover from energy-related threats. By improving coordination and response times, the ERRE helps ensure mission continuity even in contested or degraded environments. The exercise also helps determine infrastructure improvement opportunities in order to maintain operational mission readiness. Guided by The Air Force Civil Engineering Center’s Office of Energy Assurance to comply with the Department of the Air Force requirements under 10 U.S. Code § 2920, the full-scale exercise allowed the installation to evaluate its ability to sustain mission objectives during a large-scale power loss. “Our office thought that the base did well,” said Charles Remele, 90th Missile Wing Inspector General exercise plans specialist. “They were pretty prepared. They had multiple instances where they were able to continue the mission using creative methods all around the base.” During the exercise at F.E. Warren Air Force Base, units implemented contingency plans developed after recent real-world outages. Personnel used battery-powered hotspots to maintain internet connectivity, leveraged power from electric vehicles and shifted operations from buildings without power to facilities equipped with generators. The installation demonstrated strong operational continuity throughout the exercise, with 860 separate facilities affected by the simulated outage. The base validated many of the anticipated impacts and identified mission-critical generators that were under-loaded, creating opportunities to expand power support for additional missions in the future. Ultimately, ERREs play a vital role in maintaining operational readiness by reinforcing the Air Force’s ability to function effectively regardless of challenges to its energy systems. The results of the ERRE will support updates to the Installation Energy Plan and strengthen overall readiness for future energy-related challenges.