Big Rivers is seeking a Grid DERMS solution to manage and control distributed energy resources. The system will support a phased approach starting with smart thermostats, followed by batteries, electric vehicle chargers, water heaters, CVR, and irrigation pumps. The primary objective is to balance curtailable load with customer choice options. Big Rivers plans to facilitate and dispatch all demand response programs with initially 15 to 25 events per year (5-7 events in summer and winter, 3-5 in spring and fall), each with 4-hour duration. Key dates: RFP Issued December 2, 2025; Intent to Submit Proposals Deadline December 12, 2025; Vendor Demonstrations January 16, 2026; Final Date for RFP Question Submittal January 28, 2026; Big Rivers Responses to Written Questions February 6, 2026; Proposal Submission Deadline February 13, 2026; Analysis of RFP Responses February 13 - March 31, 2026; Notification of Shortlisted Responses April 1, 2026; Final Selection May 1, 2026; Execution of Contract May 4, 2026.