CASE STUDY — QSR · Brisbane, QLD
Measured savings through long, demanding trading hours
HDAC optimised the installed packaged HVAC while maintaining restaurant conditions and continuously measuring the result.
$12,557 p.a.
29.72 t CO₂-e
1.82-year payback
MEASURED RESULT
42.7%
measured annual HVAC savings
Existing HVAC retained
Real-world QSR site · extended operating hours
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01 / THE CHALLENGE
Reduce HVAC cost in an environment that rarely slows down
Quick-service restaurants combine long trading hours, high internal heat loads, frequent door openings and constantly changing occupancy. Comfort must be protected while kitchen and dining conditions move throughout the day.
The commercial question was whether the existing HVAC could be optimised without disrupting service—and whether the savings could be demonstrated at unit level after installation.
The restaurant could not trade comfort for efficiency. The system had to deliver both, continuously.
BUILDING PROFILE
Asset overview
Facility
High-traffic quick-service restaurant
Location
Brisbane metropolitan area
HVAC system
Extended hours, variable heat load
Deployment
July 2025
Verification
IPMVP Aligned A/B toggle testing, continuous equipment-level M&V
02 / THE CRESSTEC APPROACH
Measure what it uses. Measure what it produces. Control from both.
HDAC builds the proof into the optimisation process—on the equipment already installed. Anything less isn't HDAC.
01
Measure the real load
Capture HVAC power, delivered heating or cooling and conditions across the unit as the restaurant load changes.
02
Optimise continuously
Adjust compressor and fan operation in real time while preserving the conditions required for service.
03
Prove the annual result
Use measured unit data and weather-normalised analysis to quantify the annual saving after commissioning.
The saving exceeded the business case.
03 / VERIFIED RESULTS
Measured annual HVAC savings finished more than 70% above the 25% pre-install estimate while the restaurant continued operating.
42.7%
Annual HVAC savings
Measured average
$12,557
Annual cost saving
Comparable Brisbane QSR
29.72 t
CO₂-e avoided p.a.
Measured reduction
1.82 yrs
Estimated payback
Improved from 2.71 years
BUSINESS CASE VS MEASURED RESULT
Measured performance exceeded the pre-install estimate.
04 / BUSINESS OUTCOME
Measured. Defensible. Ready for a decision.
Operating environment
High traffic + extended hours
Pre-install estimate
25% annual HVAC savings
Measured result
42.7% annual HVAC savings
System approach
HDAC retrofit to existing HVAC