Battery Energy Storage Systems (BESS): Powering Singapore's Construction Sites

Singapore’s construction industry is evolving rapidly, driven by a strong push toward sustainability and operational efficiency. One of the most promising technologies supporting this transformation is the Battery Energy Storage System (BESS).

What is BESS?

BESS is a technology that stores electrical energy in rechargeable batteries and releases it when needed. Think of it as an industrial-scale power bank. On construction sites, BESS can supplement or even replace diesel generators by providing a cleaner, quieter, and more efficient power supply—especially during peak operations or at locations with limited grid access.

Currently, BESS is gaining traction for its ability to support high-energy-demand equipment such as tower cranes—and in the near future, it's expected to power entire construction sites.

Powering Tower Cranes with BESS

Tower cranes are a staple across Singapore’s ever-changing skyline. Based on industry estimates, over 400 tower cranes are operating at any given time across active construction sites islandwide. These cranes are critical for high-rise developments but require a significant and stable power supply.

Traditionally, diesel generators have powered these cranes—but they come with drawbacks such as noise pollution, carbon emissions, and fluctuating fuel costs. BESS offers a smarter alternative:

1. Stable and consistent power for crane operations
2. Reduced generator runtime and fuel consumption
3. Lower emissions and quieter operations
4. Improved energy efficiency during lifting peaks

BESS acts as an energy buffer—discharging when cranes require a power surge and recharging during downtime or off-peak hours.

From Tower Cranes to Full-Site Power

While the current application focuses on supporting tower cranes, the potential of BESS extends much further. As battery capacities and energy management systems advance, BESS is expected to support the entire energy demand of construction sites, including those without a stable grid connection.

Future use cases include:

1. Powering site offices, welfare units, and worker quarters
2. Operating lighting systems and electric tools
3. Charging electric construction equipment
4. Supporting remote or modular construction setups

This shift will not only enhance operational resilience but also help construction firms align with Singapore’s green building targets.

A Growing Market in Singapore

Singapore has taken a proactive stance on sustainable construction under the Green Plan 2030. The Building and Construction Authority (BCA) has raised Green Mark requirements, and developers are increasingly integrating ESG criteria into project tenders. To accelerate adoption, the government has also introduced energy efficiency grants—giving contractors and equipment providers additional incentives to transition to BESS.

As a result, the market for BESS is poised for strong growth, driven by:

1. Increasing demand for environmentally sustainable job sites
2. Contractors aiming to cut operational costs and emissions
3. Equipment providers offering new, cleaner rental solutions

In short, BESS is no longer a futuristic concept—it's quickly becoming a necessity in modern construction.

Conclusion

Battery Energy Storage Systems (BESS) are already reshaping Singapore’s construction industry by powering tower cranes more efficiently. In response to rising demand, more equipment rental companies are now investing in BESS and introducing competitively priced rental solutions. This not only makes the technology more accessible but also encourages widespread adoption across construction projects of all sizes.

Looking to rent a BESS for your project? Check it out here!

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