Energy Optimisation in an Aging Commercial Office Tower
Electricity reduction
NABERS rating
CO₂ emissions reduction
// case study
In this case study
// Introduction
Introduction
This aging commercial office tower is located within a major metropolitan business district. Conservia has been engaged to lead targeted building systems
upgrades to transform the building’s operational reliability whilst significantly reducing energy consumption.
Retrofitting a modern Building Management System (BMS) and implementation of high- performance HVAC control strategies will deliver energy efficiency, operational reliability and underpin a better occupant experience.
// Challenge
Challenge
The building presented an opportunity to improve its NABERS Energy rating, enhance its end-of-life BMS, and optimise occupant comfort. Addressing these areas would reduce energy consumption, improve operational efficiency, and lower operating costs through a structured upgrade approach.
// Core Services Provided
Core Services Provided
Conservia supported the project with a comprehensive suite of services focused on building performance improvements:
- Building performance upgrade and optimisation programs
- BMS design, implementation, and optimisation
- Energy monitoring and analytics platforms
- HVAC and controls system optimisation
- Advisory-led upgrade strategy and delivery
These improvements established a strong foundation for long-term energy performance and operational stability.
// Key Solutions
Key Solutions
Conservia delivered a structured, performance-driven upgrade program:
- Detailed feasibility study and upgrade strategy (DFS)
- Targeted upgrades across HVAC, controls, and metering
- Implementation of a new BMS for improved control
- Staged delivery within a live, occupied building
- Focus on energy efficiency, reliability, and tenant comfort
// Conslusions
Conclusion
Through a structured upgrade program and targeted infrastructure improvements,
Conservia transformed the building’s operational performance into a reliable and
competitive asset by taking it from a 0 to 4 NABERS rating. The project demonstrates how modern control systems and strategic upgrades can restore performance, reduce costs, and improve tenant outcomes in commercial office environments.
// Client Outcome
Client Outcome
A structured upgrade pathway delivering improved energy performance, system reliability, and tenant comfort, positioning the asset for long-term operational success.
Estimated payback period: 5.3 years
$170,207 predicted annual energy savings
