Achieving energy savings targets through smart energy monitoring and control

Charles Sturt University

Project Details

Project Description

In 2007, Charles Sturt University (CSU) became a signatory to the Talloires Declaration, an international commitment to environmental sustainability in higher education, signed by over 350 universities around the world. As part of this commitment, CSU conducted an energy audit over 2 campuses to identify where energy savings could be made. Conservia, energy solution specialists, conducted these audits, outlining that they could reduce campus electricity usage by 15.55% and gas by 19.5%.

Gas and electricity initiatives were implemented throughout 17 buildings over 2 campuses during the year 2015, and a Measurement and Verification Procedure put in place to ensure true savings were made, the International Performance Measurement and Verification Protocol (IPMVP) methodology was used for this process. The first year of reporting concluded in June 2017 and the project achieved higher than expected savings with an electricity saving of 16.1% and a gas saving of 37.7%.

Energy Management System, Building Automation, Building Management System


CSU had 17 buildings spread across their Bathurst and Wagga Wagga campuses that had a number of different and separate control systems managing and monitoring HVAC, lighting, cogeneration plant and other services throughout the two campuses.

Optergy was chosen because it enabled two typically siloed systems to be combined into one platform. Combining Building Automation and Energy Management allowed smart energy saving control strategies using information from both systems. The Optergy solution also maintained compliance with the reporting requirements necessary to conduct the IPMVP vital to project verification.

Optergy was used to visualize, track, monitor, control and alarm all utility usage and BMS over the multiple sites. Optergy as a solution was imperative to the success and monitoring of the multi-campus project.

We reduced 
 Electricity Usage


Optergy was used to visualize, track, monitor, control and alarm all utility usage and BMS over the multiple sites. Optergy as a solution was imperative to the success and monitoring of the multi-campus project.

Using the Optergy historical database, including site-wide sub-metering and HVAC trend logs, an energy specialist company, Conservia, were able to identify opportunities including:

Initiatives that were undertaken were:

With this web-based university-wide Optergy system, CSU management are able to continuously monitor usage, attend to contextual alarms related to equipment operating outside of desired parameters, attend to utility alarms where overuse is alarmed in real time, adjust operating time schedules and track performance from any PC or smart mobile device connected to their nationwide network.

Following the Optergy system deployment, Conservia is able to constantly monitor their project, not needing to rely on 3rd party contractor to send monthly data. Conservia can remotely monitor HVAC operations and conditions, sub-metering, mains metering, point data, download and analyze any of this data to ensure that their client achieves the energy savings objectives.

$157,108 Cost Savings in First Year


As at June 2017, after implementation of energy reduction schemes and 1 year of monitoring and validation, the site has been able to achieve 12.6% more savings than originally calculated. With more insight into day to day operations, it is believed this can be increased even further moving forwards. These savings equated to $157,108 in the first year alone. Savings will continue over the next 9 years.


Households worth of electricity consumption


Kms driven by an average family car

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Optergy Applications BMS

Building Management Systems

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Optergy Applications EMS

Energy Management

Visually appealing real-time reporting system displays all utility performances in a

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Automatically generate any utility billing content for all your tenants, as well as the ability to charge for after hour usage.