The company's Wodonga head office has installed what they are describing as a "mini solar farm" over a section of carpark at the Thomas Mitchell Drive site as one of many projects aimed at their 30 year target.

The 330 panel, 132kW system will provide 50 per cent of the building's energy use and is just another step towards their goal, according to managing director Craig Heiner.

"On average, the 330 panels will generate 500kW per day on top of the rooftop panels already in place," he said.

"This is a $400,000 investment with an expected 20 year lifespan on the panels and scope to increase the system size in future years if needed.

"One of the great things about this project is we're getting free energy from the sun, but also incorporating shade protection for the carpark as a bonus.

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"We're proud of our commitment to reducing the organisation's carbon emissions, and this project joins many others in our capital works program to help tackle climate change."

Mr Heiner said other North East Water projects include a large scale solar installation to power the Wodonga sewage plant.

"There are also smaller regional projects incorporating more efficient design, equipment and operating processes," he said.