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Tandem Energy

Commercial and Industrial Energy Audits

Energy Advice and Solutions

Our advice is data-driven, practical and cost-effective.

Excellent service with integrity and honesty.

Our energy system is in transition. With pressure on energy bills and changes to energy markets, we understand that you need advice that is current, practical and enduring. We are actively advising clients and managing energy projects around South Australia. We can help you make energy investments that will support your long term business needs.


We can deliver

  • ​Energy Audits - Type 1 to 3 as per AS/NZS 3598:2014​ standard.
  • Energy Demand Profiling and data logging for understanding your energy consumption.
  • Energy purchasing and onsite energy management
  • Energy efficiency and demand management solutions
  • Solar energy advice and procurement
  • Microgrid, batteries and energy storage
  • Airconditioning, refrigeration and heating energy management

We work with your team and service providers for better solutions​

Principal Auditors

Rachel Brdanovic

​Rachel has a Master of Sustainability, Certificate IV in Training and Assessment and Certificate IV in Home Sustainability Assessment.  She provides training in Home Sustainability at the Real Estate Institute of SA.

Tom Brdanovic

​Tom has an engineering background and is accredited by the Clean Energy Council for grid-design and off-grid solar design and installation.​



Heather Smith

​​​​Heather is an electrical engineer with a decade's experience providing energy audits for industry. She authored the Government Energy Efficiency Action Plan for the commercial assets of the South Australian government. She has project managed and commissioned on-site electricity and heat generation systems.

Case Studies

Kimba IGA

The IGA at Kimba has significant costs associated with its energy consumption mostly caused by refrigeration needs. Our audit recommended lighting upgrades, power factor correction, reduction in cooling loads and solar PV. Savings could see a 25% reduction in energy costs.


Barossa Quarries

After undertaking data logging at the quarry site, we recommended installation of 100kW solar PV, power factor correction equipment and smart switching of diesel generators.  These recommendations, costing approximately $150,000, save the owner around $40,000 per year. 


Hotel Group

Our audit and data logging helped the owners of a large hotel group to create a business case to upgrade the efficiency of their air-conditioning and lighting.  Education of the hotel staff and subsequent behavior change resulted in a further 8% energy reduction.  


Call us to discuss your needs

Rachel Brdanovic  0407 775 868
rachel@tandem.energy

Tom​ Brdanovic     0411 403 257
tom@tandem.energy

Heather Smith      0417 862 206
heather@changingweather.com.au


Tandem Energy

7 Twentieth Street

Gawler South, SA 5118

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