July 2026 – Aqua Tech

Emerging as a Key Solution for Water Security Across Asia

As demand for reliable freshwater supplies continues to grow across the Asia-Pacific region, desalination is playing an increasingly important role in strengthening long-term water security.

Rapid urbanisation, industrial development, climate change and increasing pressure on traditional freshwater sources are driving governments and industry to invest in alternative water solutions. Coastal populations continue to expand, making seawater an abundant and practical resource for many countries seeking greater water independence.

According to John Ferguson, Regional Manager – Asia Pacific at Danfoss, desalination offers a dependable water source that is not reliant on rainfall or river systems, making it an essential component of future water infrastructure.

What’s Driving Growth?

Several factors are accelerating the adoption of desalination across Asia:

• Growing water shortages in major cities and industrial regions.
• Expansion of water-intensive industries including semiconductor manufacturing, mining and energy production.
• Increasing climate variability, with more frequent droughts, flooding and saltwater intrusion affecting existing water supplies.
• Government investment in water security initiatives.
• Ongoing improvements in desalination technology that continue to reduce operating costs through greater energy efficiency.

Together, these drivers are positioning desalination as a strategic investment for both economic growth and long-term resilience.

Challenges Remain

Despite strong demand, the industry continues to face several hurdles.

Energy consumption remains the largest operating cost for desalination plants, placing pressure on both project economics and public water pricing. Financing large-scale infrastructure projects can also be challenging, particularly for smaller economies, while environmental approvals and regulatory processes may extend development timelines.

However, public support for desalination is increasing in regions where water shortages are already impacting daily life.

Sustainability is Essential

Modern desalination projects are increasingly being designed with sustainability in mind.

Greater energy efficiency, renewable energy integration and improved brine management are helping reduce environmental impacts. Ferguson believes governments should prioritise lifecycle performance over lowest upfront capital cost by encouraging high-efficiency technologies through procurement policies.

Rather than viewing desalination as a standalone solution, it should form part of an integrated water strategy alongside water recycling, storage and demand management. This diversified approach improves resilience while reducing reliance on any single water source.

Learning from Global Leaders

Countries such as Australia, Singapore and several Gulf nations demonstrate how long-term planning, policy consistency and investment in efficient technology can successfully support large-scale desalination programmes.

Their experience highlights the importance of focusing on reliability, operational efficiency and long-term value rather than simply minimising initial project costs.

New Opportunities Beyond Fresh Water

Emerging technologies are also creating additional value from desalination.

Brine, once considered a waste product, is increasingly being used to recover valuable minerals and produce commercial products such as industrial and food-grade salt. Large-scale projects, including Indonesia’s MAVEN Brine Mining Project, demonstrate how desalination can simultaneously generate clean water while supporting resource recovery.

Industrial water reuse and Zero Liquid Discharge (ZLD) systems are also expanding rapidly throughout China, India and Southeast Asia.

Supporting Tourism and Remote Communities

Small-scale and modular desalination systems are becoming an attractive solution for islands and tourism destinations experiencing seasonal water shortages.

These systems can be deployed quickly, scaled to demand and integrated with renewable energy sources such as solar power, providing reliable water supplies without requiring major infrastructure investments.

Looking Ahead

As freshwater resources become increasingly constrained across Asia, desalination is expected to play a central role in future water security strategies. Continued advances in energy efficiency, renewable integration and environmental management are making the technology more sustainable and cost-effective than ever before.

Combined with water reuse, storage and smart demand management, desalination is helping build more resilient water systems capable of supporting growing populations, expanding industries and climate adaptation across the Asia-Pacific region.