2025 East Best Projects
Award of Merit, Energy/Industrial: University of New Hampshire Thermal Energy Storage Tank (TES)
University of New Hampshire Thermal Energy Storage Tank (TES)
Durham, N.H.
Award of Merit
Submitted by Consigli Construction Co.
Owner: University of New Hampshire
Lead Design Firm: Lavelle Brensinger Architects
General Manager: Consigli Construction Co.
Civil Engineer: VHB
Structural/MEP Engineer: Affiliated Engineers Inc.
Tank Manufacturer/Design-Builder: DN Tanks
Subcontractors: B2Q Associates; Lawton Welding Co. Inc.; Sagamore Plumbing & HVAC; Yates Electric Service Inc.
With a capacity of 1.4 million gallons, the $10.3-million tank produces chilled water during off-peak nighttime hours, significantly reducing the university’s energy costs.
Integrating the system with an existing chiller plant required extensive underground piping, electrical upgrades and coordination with multiple stakeholders.
Early collaboration across the design-build team helped overcome unforeseen site issues, while adjustments to operational parameters mitigated a shortfall in available electrical capacity.
Photo courtesy Consigli Construction Co.
Along with the inherent challenges of major construction on an active campus, erecting large scaffolding and shoring structures inside the 47-ft-tall, 80-ft-dia tank created confined space and high-angle work hazards.
Along with implementing enhanced fall protection protocols, the team invited the local fire department to conduct a high-angle rescue training exercise, which revealed the unsuitability for traditional gear in such an environment.
In response, the team donated construction-grade fall protection and rigging equipment to the department, improving their readiness for future emergencies and strengthening community partnerships.
