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If you own a phone, tablet or computer, you’re probably already using parts made by Delta. The award winning company has spent the last 50 years creating and innovating in the electronics and energy sectors. 

When Delta moved into the solar market, they used their years of experience to create inverter and battery products that are both robust and efficient.

The company is always innovating in the photovoltaic sector, including EV charging stations powered by solar PV panels. 

With concern for the environment as a top of mind factor in their innovations, Delta works hard to create products that will have a positive impact on the global warming crisis. 


Delta’s Solar Inverter Product Range

Delta offers high efficiency of up to 98.5%, thanks to the company’s advancements in transformerless topology. 

Tailored for the homeowner, the E5 Hybrid Energy Storage System includes storage with six safety mechanisms and is one of the world’s safest home energy devices. 

For commercial, agricultural and enterprise level systems, Delta offers the RPI M-Series, which ranges from 4.99KW up to 30KW. 

Delta’s inverter offerings are suitable for both the home and business and are manufactured to meet the requirements of Australian conditions. 


Delta offers global knowledge and local after sales support, making them one of the best options for quality products that work efficiently and last.  


Proven Energy works closely with Delta and has access to a 15 year warranty offering. In our experience with them, they have been a great company to work with. Delta offers great tech support and well thought out products that are easy to install.


Proven Energy designed and installed a solar solution tailored to my home's energy needs and budget. In the 12 months since my solar was installed, my electricity bill has been wiped out and now I receive regular cheques for surplus electricity fed back into the grid. My whole system will have paid for itself in less than 3 years.

Tim, Withcott


Prompt reply and service. Friendly, tidy and has pride in his work. Unusual to find a young tradesman as reliable these days. Will be recommending him.



Very friendly and helpful. Quick to complete the job and clean Good price.



They responded quickly to my ad and I found their business really professional.



100% recommended. Prompt service, absolutely brilliant customer relationship and I’m very happy with the job.

Kathleen Wincen


Friendly, professional, explained options, stuck to quoted price, came back to property to check one room, found problem, fixed it at no charge. Problem was not something this electrician caused but rather a problem caused by a former home DIYer.



We’re a proudly local company which provides sales and services across Southern Queensland and Northern NSW. Proven Energy was founded on the belief that customers should receive high quality service and personalised advice.

Ready to save on your energy bill?


  • Toowoomba
  • Ipswich
  • Gatton
  • Warwick
  • Roma
  • Miles
  • Goondiwindi
  • Tenterfield

Find Us

Proven Energy

1/196 North St, North Toowoomba QLD 4350

(07) 4642 0017

ABN: 56 156 658 963

Electrical Contractors
Lic No. 74650