Customer


Downer Group New Zealand

Application


Construction

Location


Auckland, New Zealand

Problem We Helped Solve


With a strong commitment to sustainability, Downer wanted a cleaner solution than relying on 24/7 diesel generators to power their off-grid site offices through construction of a weighbridge in Auckland, New Zealand. With generators producing significant CO2 emissions, noise pollution and requiring ongoing refuelling and servicing, Downer was seeking a smarter approach that could also help them meet their ESG goals.

What Needed to be Powered


Multiple site offices and general site power, with the requirement for the most sustainable hybrid option to support Downer’s sustainability goals.

Alternatives Assessed


The only other alternative for this site was a diesel generator running 24/7, which would also not enable Downer to leverage available solar.

  • Delivered a hybrid off-grid system combining Powershift’s LX60/125 battery with 5kWp of solar integrated into the site sheds, with a 30kVA generator for top-up on low solar days.
  • Leveraging a Powershift battery allowed for the in-built solar on Downer’s site sheds to be captured, maximising renewable generation, with the battery storing solar energy and powering the site. The small generator operated only for short intervals when solar input was insufficient.
  • Powershift remotely monitored and supported the unit 24/7 and partnered with a local NZ delivery partner to ensure any on-site support needed was quick and to the highest standard.

LX Series mobile batteries are a compact system with a wide range of applications across civil and commercial construction, site sheds, remote offices, events and more.

Throughout the project, the hybrid system delivered a highly efficient and sustainable off-grid power solution, dramatically reducing generator use, emissions and operational costs while maintaining reliable power for the site.

Reduced Generator Run-Time by 93%

Operating on average only ~2.5 hours per week instead of running continuously

Clean, Emission Free Power

Reduction in >60 Tonnes of CO² emissions, with 88% of all site energy delivered through sustainable sources i.e. solar and battery.

Reduced Operating Costs

Savings of >$30,000 in fuel and >$17,000 in generator servicing and maintenance.