FMPA Battery Energy Storage RFP

Florida Municipal Power Agency (FMPA) seeks proposals for a battery energy storage system deployment. Part 1 involves a 15 MW / 60 MWh BESS for the All Requirements Project (ARP) located at Keys Energy Services (KEYS) Big Pine Substation in the Florida Keys. The system will charge during off-peak hours and discharge during peak load conditions to mitigate transmission constraints and avoid costly oil-fired generation dispatch at Stock Island Generating Station. The BESS is designed for a minimum 20-year useful life with capability to execute up to 2 full charge-discharge cycles per day (730 annual cycles). Part 2 requests indicative pricing for an 8 MW / 2-hour localized BESS solution for the City of Lake Worth Beach at 26kV sub-transmission interconnection, which FMPA members may optionally select independently.

The proposed Big Pine site is elevated to 10 feet above sea level to accommodate FEMA 100-year flood elevations (8 feet) plus sea level rise projections. Design criteria address marine climate challenges including hurricane-force winds (200 mph), high humidity, corrosion mitigation, thermal management for 90+ degree F temperatures, and comprehensive fire protection including UL 9540A compliance. A mandatory site visit with walk-down is scheduled for January 8, 2026 at 10:00 AM at 279 Industrial Road, Big Pine Key, FL 33043 (hard hats and safety glasses required). Respondents must submit proposals by February 5, 2026 at 10:00 AM EST via Vendor Link or physical delivery at FMPA office, 8553 Commodity Circle, Orlando, FL 32819. Questions must be submitted by January 12, 2026. FMPA expects responses addressing business models (EPC turnkey, PPA with various terms), detailed cost breakdowns (capital, O&M, software), comprehensive technical specifications for battery systems (minimum 90% round-trip efficiency at BOL, 87.5% at EOL), power conversion systems, SCADA integration, fire detection, and balance of plant systems including grounding, lighting, and auxiliary power.