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The building, which currently uses a cooling tower water management system, high-efficiency air distribution system and other energy-efficient technologies, is the first commercial building within the city-state to achieve such accolade.
Keppel Bay Tower has been certified by the Building and Construction Authority (BCA) as a Green Mark Platinum (Zero Energy) building, making it the first commercial building within the city-state to achieve such accolade.
A Green Mark Platinum (Zero Energy) building is one that has a low energy use index (EUI) of less than 115 kWh per sq m per year and uses renewable sources of energy both on-site and off-site.
Keppel Bay Tower is owned and operated by Keppel Land, which was awarded by BCA, in 2018, with a grant under the Green Buildings Innovation Cluster (GBIC) programme to implement energy-efficient technologies at Keppel Bay Tower.
These included a cooling tower water management system, high-efficiency air distribution system, intelligent building control system, integrated sensor technology to optimise fresh air intake and smart LED lighting solutions.
By February this year, the tower’s annualised energy consumption was reduced by 22.3%. Some of the technologies are being replicated in the rest of the building after the pilot.
Photovoltaic (PV) panels spanning over 400 sq m will also be installed on the roof of the 18-storey tower and its six-storey podium block. The PV panel system will generate around 100,000 kWh per annum, said BCA and Keppel Land in a joint release on Wednesday (9 December).
Once these initiatives are completed, the tower’s annualised energy consumption will be reduced by more than 30% from its 2017 Green Mark Platinum level and will be about 50% lower compared to typical office buildings within the city-state.
“The remaining energy use will be offset through the purchase of Renewable Energy Certificates (RECs) through Keppel Land’s electricity retailer, Keppel Electric, which are generated from PV panels installed at Keppel Offshore & Marine’s yards in Singapore,” said the release.
Keppel Land CEO Tan Swee Yiow revealed that the company had been leveraging technological innovations to enhance their buildings’ environmental performance.
“We hope that this will pave the way for more zero energy commercial buildings in the years to come, and look forward to further pushing the envelope of environmental sustainability in Singapore and beyond,” he said.
BCA CEO Kelvin Wong described the certification as a significant milestone in the city-state’s green building journey.
“It also demonstrates how research and innovation can make zero energy, high rise commercial buildings a reality,” he said.
“I believe this is just the first of many more to come and I look forward to upcoming contributions from across the Built Environment value chain to realise our collective goal of a greener and more sustainable Singapore.”
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