Challenge
Limited Insight from Traditional Reporting
ASB set ambitious long‑term energy and carbon reduction goals, but its existing approach to tracking performance relied heavily on traditional energy audits and invoice data. This meant the property team lacked the real‑time visibility needed to identify high‑consumption sites and prioritise efficiency upgrades.
The limitations included:
- Energy usage data delayed by monthly billing cycles
- No live monitoring to pinpoint specific inefficiencies
- Inability to compare site performance and target worst performers
- Rising energy use per sqm despite earlier initiatives
- Difficulty building a strong business case for future improvements
Action
BraveGen provided comprehensive monitoring, analytics, and consulting services to integrate efficiency and sustainability into ASB’s property operations.
Automated Data Integration
- Installed high‑quality sub‑load metering at all sites, measuring every 15 minutes
- Consolidated all monitoring into BraveGen’s cloud analytics platform
- Developed a branch energy tracker leaderboard to engage and motivate teams
- Automated carbon calculators for reporting and audit requirements
- Implemented a rolling programme of performance upgrades based on data insights
Key Features Implemented
- Portfolio‑wide real‑time energy monitoring
- Targeted performance improvement programme
- Integration with NABERSNZ for building performance ratings
- Energy audit and tariff optimisation services
- Ongoing managed services for continuous savings
Impact
Operational Improvements
- 49% energy reduction achieved across the entire portfolio – 14.3 GWh annually saved
- Over $2.1 million NZD annual cost savings
- 11,575 tonnes CO₂‑e avoided cumulatively – electricity is ASB’s largest single direct emission source
- 5 Star NABERSNZ rating at North Wharf HQ
- Improved audit efficiency – direct meter data used for carbon reporting, reducing admin burden
Awards & Recognition:
- Winner, EECA Energy Management Award (2012)
- Winner, EECA Large Business Award (2012)
- Commended, EECA Large Business Award (2014)
“ASB is really proud of the energy efficiency results we have achieved. Our partnership with BraveGen has been critical to delivering those results across such a large portfolio.”
Anita Potgieter – Head of Facilities Management, ASB Bank
“The monitoring and professional services that BraveGen provide have been invaluable. They give us the visibility to productively plan and track performance across our entire portfolio.”
Matt Rowbotham – GM Procurement & Property, ASB Bank