The HumeLink West project team is kicking sustainability goals, with another major milestone reached in our journey toward achieving the highest possible Infrastructure Sustainability Council (ISC) rating.
At Maragle, the construction team has successfully installed a hybrid battery system that now energises the site offices and utility buildings - dramatically reducing reliance on diesel generators. Designed and built by CPB Contractors Plant Department, the system is part of our internal EcoPro Fleet.
Sustainability Manager, Greg Appleby, says the results exceeded expectations.
“We have successfully trialled the replacement of 100% dependency on diesel engine‑powered electricity generation at the Maragle Substation site with a hybrid solar battery system. This system has reduced diesel generation to just one hour per day."
The trial of the 123kWh solar battery system has already delivered a 98% reduction in carbon emissions - that's the equivalent of removing 65 cars from the road every single day!
Building on this success, HumeLink West will now roll out similar systems at eight additional project sites, including laydown facilities, concrete batch plants, and all substation work sites. Altogether, this expansion represents an emissions reduction equivalent to taking more than 300 cars off the road each day.
The initiative isn’t just environmentally impactful - it’s commercially sustainable, with fuel savings alone offsetting the cost of the system.
CPB Contractors, in partnership with UGL, is delivering the western section of the HumeLink voltage transmission project. On completion, 365 km of new transmission lines will fully connect Snowy Hydro 2.0 to the NSW electricity grid, increasing the amount of renewable energy for consumers. Learn more: HumeLink West | New Energy | CPB Contractors