Optimizing School Environments for Comfort and Efficiency
Inside GDI Ainsworth’s targeted energy optimization strategy that delivered improved comofrt and reduced energy consumption
Project Details
Location
Coquitlam, Canada
Number of Buildings
1 - 38,300 ft² facility
System Implemented
HVAC retuning and energy optimization through multiple energy and comfort conservation measures (ECMs), updated control strategies, and energy monitoring dashboard
Project Goal
Resolve building comfort complaints while reducing gas and electrical energy consumption and equipment wear
Impact at a Glance
Reduced electrical consumption by an average of 20% within three months
Reduced gas consumption by an average of 28% within three months
Lowered electrical usage by 12,960 kWh and saved 197 GJ of energy
Improved thermal comfort throughout classrooms and shared spaces
Challenge
During the first 18 months of operation, James Park Elementary experienced widespread hot and cold comfort complaints. At the same time, the building exhibited a high energy use index for both gas and electricity. Mechanical equipment was frequently operating at full speed during school hours, leading to unnecessary energy consumption and increased equipment wear. The school required a solution that could address comfort concerns while delivering measurable efficiency improvements.
Methodology
Conducted a detailed review of building performance, energy usage, and comfort conditions
Identified inefficiencies in mechanical system operation and control sequences
Collaborated with School District staff to prioritize comfort and operational needs
Selected targeted ECMs to deliver immediate energy and comfort improvements
Implemented monitoring tools to validate performance and track ongoing results
Solution
Returned all VAV flow controllers to improve zone-level comfort control
Improved unit ventilator supply air temperature (SAT) control
Revised operation sequences on primary and secondary loop systems
Applied a calculated load demand reset strategy for heat pumps and boiler systems
Optimized heat recovery fan control sequences
Reduced unnecessary full-speed equipment operation during school hours
Implemented an Earthright Dashboard to monitor energy usage and performance
The Ripple Effect
Reduced operating costs and greenhouse gas emissions
Improved classroom comfort, supporting a better learning environment
Lower equipment wear and extended system life
Provided data visibility to support ongoing energy management decisions
