To a casual observer, Block 180 in Taman Jurong appears to be any other Housing and Development Board (HDB) apartment complex. But as night falls, the building reveals a subtle, calculated difference: the corridors are not uniformly ablaze with light. Instead, some floors drift into a soft dimness, creating a visual rhythm of light and shadow that signals a broader experiment in urban sustainability.
This is the center of a Taman Jurong smart lighting pilot, an energy-saving initiative led by the West Coast-Jurong West Town Council. By deploying a specialized system from the Singapore-based company Agranergy, the council is attempting to decouple public safety from high energy expenditure. Early data suggests the gamble is paying off, with the pilot already achieving energy savings of over 70 per cent.
The project arrives at a critical financial juncture for Singaporean households and municipal bodies. The city-state’s electricity tariffs have faced upward pressure due to geopolitical volatility in the Middle East, which has impacted global energy markets. For the second quarter of the year, the electricity tariff rose to 27.27 cents per kilowatt-hour (kWh), excluding goods and services tax—a 2.1 per cent increase from the previous quarter’s rate of 26.71 cents per kWh.
The Economics of Dimming
For municipal managers, the cumulative cost of lighting thousands of corridors, void decks, and stairwells across a constituency is a significant budgetary line item. When energy prices climb, these fixed costs can squeeze funding for other essential community services.
Mr. Shawn Huang, the Member of Parliament for the Taman Jurong ward of West Coast-Jurong West GRC, views the current energy climate as a catalyst for systemic change. In an interview on March 30, Mr. Huang noted that while Singapore is traditionally very brightly lit, there is significant room to reduce brightness in specific areas without compromising visibility or safety.
The financial implications of the pilot extend beyond simple utility bills. The cost savings generated by the Taman Jurong Community Club (CC), where the initiative first began in February, are being redirected toward resident programming. This includes activities for youth and seniors, as well as support for disadvantaged families. According to Mr. Huang, every dollar saved on electricity is a dollar that can be reinvested into community welfare.
| Period | Tariff (per kWh, excl. GST) | Percentage Change |
|---|---|---|
| Previous Quarter | 26.71 cents | — |
| Second Quarter | 27.27 cents | +2.1% |
Predictive Lighting vs. Traditional Sensors
The technology implemented by Agranergy differs fundamentally from the standard motion-sensor lights often found in parking garages or warehouses. Conventional systems typically trigger a light only when a person is directly beneath the sensor, often leaving the resident to walk through a “tunnel” of darkness before the next light activates.
The Agranergy system utilizes a predictive approach. When sensors detect movement—such as the opening of a lift door—the system swiftly brightens the lights across the entire corridor. This ensures that by the time a resident steps out of the lift, their path is already illuminated.
A similar logic applies to the stairwells. When a resident is detected, the system brightens the current floor as well as the floors immediately above and below, effectively lighting the way for both ascent and descent. Under the current pilot settings, lights dim to 30 per cent of their full output after three minutes of inactivity. Ms. Belle Guo, co-founder of Agranergy, explains that this 30 per cent threshold is designed to maximize savings while ensuring the environment never feels “pitch-black or unwelcoming.”
The smart light deployment has led to a reduction in energy consumption of more than 70 per cent.
ST PHOTO: NG SOR LUAN
Resident Perceptions and Safety
While the data favors the system, the human experience is more nuanced. Residents of Block 180 have expressed a mix of apprehension and appreciation regarding the dimmed corridors.
For some, the reduced light creates an atmospheric shift that isn’t always positive. Marcus Khoo, a 50-year-old employee at a desalination plant, noted that the block can feel “fully dark,” particularly during rainy weather when natural ambient light is low. Similarly, 63-year-old homemaker Rohana Sulaiman mentioned that the corridors do not look as “nice” when dimmed, especially since her neighbors seldom walk around, leaving the floors dark for long periods.
However, both residents identified an unexpected security benefit. Because the lights brighten upon detecting movement, the system serves as a visual alert. Ms. Sulaiman described it as an “early warning system,” providing reassurance—particularly for elderly residents—that they will know immediately when someone is approaching their floor.
The initiative began in the offices of Taman Jurong Community Club in early February, before a collaboration with the West Coast-Jurong West Town Council allowed its expansion to Block 180.
ST PHOTO: NG SOR LUAN
Measuring Success
To ensure the results were scientifically sound, the council chose Block 180 for its symmetry. This proves one of two nearly identical blocks in Taman Jurong, both featuring 18 storeys, 122 units, and 242 lights. This allows the council to conduct an “apples-to-apples” comparison between a traditionally lit building and the smart-lit pilot building.
Beyond energy consumption, the council is evaluating the long-term viability of the system. This include studying the costs of replacing existing hardware, ongoing maintenance requirements, and the overall return on investment. If the pilot proves sustainable, the system could be expanded to the rest of Taman Jurong and the wider West Coast-Jurong West constituency.
The pilot is scheduled to conclude in June, at which point the town council will make a final assessment on the feasibility of a larger rollout. This decision will determine whether the “dimmed” aesthetic becomes a fresh standard for energy-efficient public housing in Singapore.
This article is for informational purposes only and does not constitute financial or investment advice regarding energy markets or fintech companies.
We invite readers to share their thoughts on the balance between energy efficiency and urban lighting in the comments below.
