Background
A Perth-based ISP operates a high-performance wireless and fibre internet network across Perth, delivering low-latency connectivity to residential, business, and enterprise customers. Network uptime is critical, particularly during planned outages, weather events, and periods of high demand. Many network sites were originally equipped with traditional AC UPS systems, which were prone to overheating and had limited monitoring capabilities.
Challenge
The AC UPS units at multiple sites were experiencing regular failures due to Perth’s high summer temperatures. The lack of built-in redundancy and limited remote visibility meant faults could not be proactively identified, often resulting in unplanned downtime. In many cases, outages required the deployment of portable backup generators, which increased operational costs and response times. The ISP sought a DC-based backup solution that would:
- Operate reliably in high ambient temperatures.
- Reduce points of failure by eliminating AC conversion stages.
- Provide longer site autonomy
- Provide full remote monitoring of both power system and battery health.
- Introduce redundancy to protect critical network uptime.
Solution
Powerbox supplied and integrated DC power systems paired with Polarium lithium-ion batteries in 100Ah and 150Ah capacities. These were deployed to replace the failing AC UPS units, providing direct 48Vdc backup to site equipment without unnecessary AC/DC conversion losses.
Key solution features included:
- Hot-swappable, modular DC rectifiers for improved serviceability and built-in N+1 redundancy.
- Polarium batteries with high-temperature performance, integrated Battery Management System (BMS), and full remote monitoring capability.
- Alarm integration with the ISP’s network operations systems for proactive fault detection and maintenance planning.
- Configurable autonomy to meet site-specific runtime requirements during utility outages.
Outcome
With More than 30 sites successfully deployed across Perth and surrounding areas, the ISP has Achieved:
- Dramatic reduction in site downtime during both planned and unplanned outages.
- Elimination of multiple AC UPS failure points and associated generator callouts.
- Improved operational visibility through real-time monitoring of power and battery status.
- Increased resilience of the network’s critical nodes in extreme weather conditions.
Powerbox Value Proposition
By replacing unreliable AC UPS units with high-performance DC power systems and Polarium lithium batteries, Powerbox delivered a resilient, temperature-tolerant backup power solution tailored for ISP network infrastructure. Our combination of modular DC architecture, integrated monitoring, and proven lithium storage technology enables service providers to maintain customer connectivity while reducing operational risk and cost.
About the Author
Marco Fernando, Business Development Manager, Powerbox Australia
Marco Fernando is a Business Development Manager at Powerbox Australia. Marco brings extensive cross-industry experience to the business, with a strategic, client-first approach to building long-term partnerships. Having worked across national and international markets, he focuses on tailoring power solutions that drive growth and efficiency, providing clients with the reliable support and insight they need to navigate complex power requirements.
