How We Helped a Nowra CBD Retail Store Reduce Energy Bills by 32% With a High-Efficiency Commercial AC Upgrade
Introduction
Location: Nowra CBD NSW
Service: Commercial Air Conditioning Upgrade
Client Type: Retail Store (Staff + Customer Environment)
Outcome: Better temperature consistency + major energy savings + quieter operation
A prominent retail store in Nowra CBD was experiencing high energy bills, uneven temperatures and poor airflow from old wall-mounted commercial units. Staff were uncomfortable, customers noticed the heat on busy days, and running costs were becoming unsustainable.
Denali Air Conditioning delivered a modern, efficient upgrade tailored to a retail environment where comfort directly impacts sales, customer experience, and staff productivity.
Summary of Results
- 32% reduction in annual energy costs
- Stronger, more consistent cooling across 200m² retail floor
- Much quieter system for better customer experience
- Smart scheduling to prevent overnight energy waste
- Improved airflow for both staff and customers
Client Background
The retail store had been using outdated commercial wall units installed over 15 years ago. These systems:
- Consumed high amounts of electricity
- Struggled during summer — especially with foot traffic
- Produced noticeable background noise
- Delivered uneven temperatures across the shop floor

The owner wanted a reliable, quiet, low-cost-to-run solution that could handle peak summer crowds.
The Challenge
We identified several issues:
- Units were past end-of-life, running inefficiently
- Airflow was insufficient for a retail floor with long shelving aisles
- No automated scheduling — units ran overnight by accident
- Noise levels were high near the checkout
- Outdoor unit coils were rusting due to South Coast’s salty coastal air
Strategy & Actions Taken
System Design & Load Analysis
We analysed peak foot-traffic, heat load from lighting, door openings and direct sun exposure.
A high-efficiency Daikin commercial cassette system was chosen for its coverage and energy performance.
Ceiling Cassette Placement
Installed two 14kW four-way cassette units positioned for optimal airflow around shelving aisles.
Energy-Saving Smart Controls
Installed:
- Weekly schedules
- Auto-off at closing time
- Eco mode
- Automated setback temperatures overnight
Outdoor Unit Upgrade
- New corrosion-resistant outdoor units
- Repositioned to a shaded area to maximise efficiency
- Anti-vibration mounts for noise reduction
Commissioning & Staff Training
We trained staff on:

- Temperature presets
- Energy-efficient settings
- Cleaning and maintenance schedules
Results
| Measurement | Before | After |
|---|---|---|
| Annual Electricity Cost | ~$9,800 | ~$6,650 |
| Airflow Coverage | Inconsistent | Strong, even across all aisles |
| Indoor Noise | Noticeable | Significantly quieter |
| Peak Day Performance | Struggled | Maintains stable temperature |
| System Lifespan | Near end | Brand new, high-efficiency system |
Client Feedback
“The store feels completely different. Customers comment on how comfortable it is now, and our energy bill dropped straight away. Couldn’t be happier.”
Related Services & Locations
Want Similar Results?
If your retail store or business needs a quieter, more efficient cooling system, our South Coast commercial specialists can help. Call Denali Air Conditioning today on 0480 170 143 or submit a request for an online quote.
