By Megan Bozman
Buildings in Singapore consume about one-third of the nation’s electricity, and chiller plants use up to half of the total building energy consumption. Improvements in chiller plant efficiency therefore have great potential to reduce the impact of buildings on their environment.
To that end, Singapore’s Building and Construction Authority (BCA) has recently partnered with Microsoft to implement an integrated IoT solution for chiller plant efficiency, the first government agency to do so. BCA is an agency under the Ministry of National Development, which champions the development of an excellent built environment for Singapore.
The new project will complement BCA’s Green Mark rating system, a green building rating tool designed for buildings in the tropics and sub-tropics, originally launched in 2005.
It’s all about the Cohesive Implementation
Like any good IoT solution, this pilot project combines sensors with data analytics and Microsoft Azure cloud computing to power the Chiller Efficiency Smart Portal. The Portal will cater to 30 commercial and institutional buildings over a two-year period.
Mr. Ang Kian Seng, Group Director, Environmental Sustainability Group, BCA, stated, “Monitoring by itself does not save energy, it must trigger an action.”
This Chiller Efficiency Smart Portal empowers facilities managers through productivity tools to monitor a portfolio of buildings, in addition to providing analysis tools. In describing the solution, Mr. Foo Jong Tong, Public Sector Director, Microsoft Singapore, stated, “… harness the capabilities of our intelligent cloud to help them gain insight and take action from data…”
Clearly I’ve taken a rather short snippet of the entire quote, but this phrasing resonated with me. This is the key to the value of IoT. IoT sensors, cloud servers, and even analytics provide no benefits unless they’re implemented as part of a cohesive solution which drives change. It reminds me of the tree in the forest question.
Smart Building Alerts and Actionable Data
“Designed to be universal to cater to different chiller plant systems, the system uploads chiller plant performance data such as power, water flow rate, temperature, to the Portal. Through machine learning and automatic base-lining, the Portal can help detect chiller plant performance deviations that may potentially result in energy wastages.”
Building managers can be alerted to irregularities via email or SMS, and can view reports of chiller performance to help take corrective and preventative actions. Dashboards of chiller plant performance data are also available, as well as downloadable reports.
A New Bonus from Smart Building Data
The various analytics enable comparisons of chiller plant performance trends across multiple buildings. The joint press release suggests that this could empower building managers in negotiating performance-based contracts with their chiller service providers.
Smart building solutions can clearly save money through quick discovery of deviations and preventative maintenance. But negotiating power is one this author hasn’t frequently encountered. It’s a great point and I’m impressed at the ingenuity of the authors to think outside of the building (or box.)
Singapore Green Building Week
Also announced at this week’s Singapore Green Building Week (SGBW), BCA is rolling out new measures to further drive the greening of the built environment. Initiatives include revamped Green Mark criteria for residential buildings, expanding BCA’s Green Mark’s reach to Africa, and the release of BCA’s third annual building energy benchmarking report.