Building Energy Efficiency Optimisation

Tuesday, September 1, 2015

Purpose of the project

Brookfield believes that providing our facility managers with timely building performance information that is readily available and in an easy to digest format, is key to improving building performance

Approach

Partnering with Buildings Alive and using Rapid Efficiency Feedback (REF), building control strategies can be implemented and their effectiveness assessed without waiting for the next utility bill. Every morning, Brookfield's facility managers receive automated feedback on energy and water performance. It assesses the prior day’s performance determining if it was better or worse than predicted by Buildings Alive's building-specific models. These models normalise variables outside the control of the building operators including weather variables, day of week, seasonal factors and occupancy factors. They also provide pointers to efficiency opportunities that would otherwise be masked from view.
By identifying and locking in strategies associated with "good news" and eliminating the factors contributing to "bad news", Brookfield has been able to achieve exceptional savings across its entire portfolio; results that go well beyond its initial expectations. These results highlight a crucial ingredient in maintaining high-performance buildings, providing information in a format that enables effective decision-making and allows the impacts of changes made to be measured.

Results

Energy consumption has been reduced by 4.1%
Approximately 2,500 tonnes of CO2 saved
Greater visibility of site performance by facility managers

 

“Providing Facility Managers with regular utility performance data in an easy to digest format allows building control strategies to be adjusted and results assessed, without waiting for the next utility bill to determine their impact. Strategies resulting in energy savings are kept and those that do not are reversed.”

- Danny De Sousa, Sustainability Facility Manager, Australian Office Division