Kusu Island Becomes Fully Self-Sufficient with Solar Power, Producing Its Own Water and Electricity

Singapore’s Kusu Island has achieved complete self-sufficiency, generating its own power and water through solar energy. Known for its significance as a pilgrimage destination in the final quarter of the year, Kusu Island now features a solar array and desalination plant. This development was realized through collaboration between the Singapore Land Authority (SLA) and Nanyang Technological University (NTU).

The solar power system on the island generates over 230 megawatt hours annually, enough to power 52 four-room HDB flats and reduce carbon emissions by approximately 96 metric tons per year. A backup battery system can also store two days’ worth of power, ensuring continuous energy supply even during cloudy or rainy conditions. The energy powers essential facilities such as toilets, showers, and a seasonal food center.

This self-sufficiency extends to water production as well. Kusu’s desalination plant can produce 20,000 liters of potable water daily, meeting the needs of around 140 people. The water from this plant is in the final stages of being certified for drinking.

To honor Kusu Island’s heritage, the solar panels are arranged in a tortoise pattern in a lagoon near the Da Bo Gong Temple. This water-based installation enhances efficiency, delivering a 10-15% improvement over conventional rooftop solar panels.

Following the success on Kusu Island, SLA and NTU plan to implement a similar system on Pulau Hantu by 2024, designed to meet the needs of its smaller visitor base of divers and nature enthusiasts.