January 21, 2022
Energy-efficient buildings are recognised under the Super Low Energy Programme (SLE Programme). This SLE Programme features buildings with energy efficiency, the use of onsite and offsite renewable energy and other intelligent energy management strategies.
To be considered as one of the next-generation energy-efficient buildings, the building has at least 60% energy savings.
Currently, the building sector in Singapore consumes up to 38% of the nation’s electricity. Improvements are being made as Singapore aims to achieve sustainable development by 2030 through the Green Plan.
Awarded the Green Mark Platinium Award in 2021, the Energy Usage Index (EUI) of NUS has decreased by 8% since 2016. This is part of NUS’s aim to become a Carbon Neutral Campus by 2030.
The decrease in energy utilization can generally be ascribed to the progressing long term updating and union of chiller plants, streamlining of cooling frameworks control and setpoints, green acquisition of lab hardware with higher energy effectiveness like ULT coolers and fumehood, green lab programs to support the reception of feasible practices just as the venture to introduce a sun-based photovoltaic arrangement of somewhere around 9 MWp across the entire grounds.
This landmark utilises 100% LED lighting which is more energy-efficient than its incandescent counterparts. It also features air handling unit fans which are about 45% more energy-efficient than other best-in-class technologies.
Keppel Bay Tower also features a Photovoltaic (PV) System on-site at 97kWp. The remaining energy is offset by Renewable Energy Certificates (REC) generated in Singapore.
There is more than a 5% reduction in air-conditioning energy usage due to state-of-the-art water cooling technology.
SEAB has a passive architectural design that enhances natural ventilation, this lowers the building cooling demand. The building includes a system of hybrid cooling for office spaces and multi-purpose rooms which encourages efficient energy usage.
SEAB is also equipped with an energy-efficient chiller plant with an efficiency of 0.56kW/RT. It includes an integrated building management system. With its energy-efficient lighting system, the building is able to save more than 50% in energy savings.
This hangar consists of an energy-efficient chiller plant with an efficiency of 0.62 kW/RT. There is a provision of permanent instrumentation to monitor said chiller plant system operating efficiency.
SIA’s Hangar 2 is equipped with lifts that have variable voltage variable frequency motor drive and sleep mode features. This conserves energy and contributes to the building’s energy efficiency.
Energy is generated through the rooftops of Singapore International Airlines Engineering Company (SIAEC)’s hangars which are covered with 17,000sqm of solar panels. It equates to 8,000 solar panels drawing energy from the sun to generate 4,500-megawatt hours of electricity annually to power the hangars.
Punggol Point Crown is an initiative by the Housing Development Board (HDB) which while aiming to be part of the ‘Green Heritage’. This building pays tribute to the history of Punggol as well as different landmarks in Singapore which shape its architecture. The project provides eco-friendly and smart features for smart and sustainable living through effective energy management.
Punggol Point Crown has a reduced heat gain facade of an average of 18.08W/m2 which equates to cooler homes which require less air-conditioning to keep cool. 65% of the living room and bedroom spaces have unobstructed air flow.
The building has lifts which are equipped with Regenerative Drive feature, the lift is therefore able to capture the heat generated during use and convert it into reusable energy to save on electricity consumption to power the lifts.
The lighting system in the building has 80% in energy savings due to LEDs being equipped with photo sensors and motion sensors. This smart lighting system with remote monitoring & control system as well as low latency sensors with fault reporting provides energy savings during operation.
With these steps, Punggol Point Crown has an estimated energy savings of 1,427,569.75 kWh/year, which is equivalent to power 305 households/year.
As another university which aims to be energy efficient, NTU is equipped with high performance façade with minimized heat gain through adoption of glass with low shading coefficient and envelope materials with low thermal transmittance. This allows for a cooler building due to the well-insulated surroundings.
NTU utilises a chiller plant with high efficiency of about 0.565kW/RT. Less energy intensive passive displacement ventilation systems are also used for majority of air-conditioned spaces in the building.
Occupancy sensors are also installed in the building for efficient air-conditioning demand control.
The building is equipped with hybrid cooling for kindergarten classroom villas to provide cooling at a higher set point of 27°C.
There is good daylighting design for classrooms, ancillary offices and the library with high spectral selectivity glazing solution. This means there is higher visual light transmission and less solar heat gain. Photosensors are also present in the building
The building has installed 100% LED light fixtures which are provided with motion sensors and occupancy sensors for kindergarten classroom villas and transit areas
To be a Net Zero Energy Building, Photovoltaic panels with estimated power generation of 300 MWh are to be installed on-site.
Located in the Marina Centre business district and connected directly to City Hall MRT and Esplanade MRT and various major developments in the vicinity, One Raffles Link has achieved a Super Low Energy Building status.
One Raffles Link has an efficient overall cooling system with efficiency of 0.8 kW/RT. The building has lifts which are equipped with the Regenerative Drive feature, the lift is therefore able to capture the heat generated during use and convert it into reusable energy to save on electricity consumption to power the lifts. One Raffles Link also uses LED lighting extensively.
The building has an estimated energy savings of 1,000,000 kWh/yr.
Since its completion and opening in 2011, United World College of South East Asia has actively strived to maintain its design energy efficiency of <70 Kw/h per m2 per year.
UWCSEA has a highly efficient air-conditioning system (operating at better than <0.58KW/T and airside on average < 0.2 KW/ton.). It is also equipped with motion sensor lighting at all private lift lobbies changing rooms and common staircases. Daylighting sensors are present in classrooms. The rooftop garden on the building incorporates huge green walls to reduce the ambient temperature.
The building has an estimated energy savings of 3 081 960 kwh/yr.
Mapletree Benoi Logistics Hub is a five-storey ramp-up logistics facility located near to the Jurong and Pasir Panjang Ports. The facility is made of demolished materials used previously for the site.
The facility has a roof with skylight stripe integrated with photo sensors to reduce lighting consumption throughout the building.
The facility also has a highly efficient layout & fitting types with high bay motion sensor controls to allow greater energy efficiency.
Singapore is making progress in converting present buildings to more sustainable buildings as well as building future buildings with energy-efficient features in mind. The different features of the abovementioned buildings make them unique in an urban landscape. With these implementations, Singapore is progressing towards a more sustainable nation through the Green Plan.
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