Integrating systems to save thousands in energy

Hilton Plaza

Project Details

Project Description

Hilton Plaza is a small neighborhood shopping centre located in Cowandilla, South Australia. The centre operates 7 days a week and accommodates 1 major tenant, 10 minor retailers, a café and has 228 parking spaces available for shoppers.

The common mall area air conditioning is served by two roof mounted units and parking for the site is via an enclosed parking garage with exhaust and an external open-air carpark. All plant and lighting was previously operated by stand-alone timers, adjusted seasonally.

Remote connectivity, visibility and integration were all impossible with stand-alone timers and made it extremely hard for the facilities team to make site changes and measure the performance results in real time.

Increasing energy prices put pressure on the facilities team to investigate monitoring tools and energy saving opportunities. Subsequently building controls experts, Leading Edge Automation/Alerton Australia, was engaged to carry out a detailed site audit and provide recommendations.


During the detailed site audit, there were a number of Energy Conservation Measures (ECM’s) identified: 


$14,000 Savings per year


The parking garage fan operation and energy use were logged over a period of one month prior to commencing the upgrade for project benchmarking. In the first year the project achieved a $10,000 reduction in energy costs compared to the logged benchmark. The project has delivered energy savings greater than estimated.

Remote access to the Optergy BMS allows site maintenance staff to remotely connect to monitor, report and make simple adjustments. A reduction of over $4,000 was achieved when comparing service callout costs to the previous year.


Incandescent lamps switched to LEDs


Kms driven by an average family car

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