Regional School Unit 40 (RSU 40) – Union, Maine

EEI is working with RSU 40 on a district-wide feasibility study to guide long-term capital planning and identify the most cost-effective path to address aging infrastructure and building system needs. The study includes funding strategies and a phased priority matrix addressing immediate needs (0–3 years) and longer-term improvements (3–5 and 5–7 years). Phase 1, completed in Summer 2024, focused on roofing improvements and VRF upgrades to take advantage of Efficiency Maine incentives. Phase 2, which began in Summer 2025 and will conclude in Summer 2026, includes major mechanical, controls, and infrastructure upgrades across the district. 

Project Highlights 

  • Comprehensive, multi-year phased capital planning for all district facilities 
  • Completion of Phase 1 projects including roofing improvements and VRF HVAC upgrades 
  • Engineered design and implementation of a new high school septic system 
  • Conversion of high school and middle school heating from oil boilers to a central, campus-based biomass plant providing renewable heat 
  • Building automation and controls upgrades completed at three elementary schools 
  • Phase 3 planning underway, focusing on remaining controls and ventilation improvements
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