The Wind-Solar Hybrid Energy-Saving Seawater Desalination Project Successfully Accomplished in Indonesia

---Recently, the "Wind-Solar Hybrid Energy-saving Seawater Desalination Project," which HRC was responsible for, has successfully passed the acceptance evaluation. A fully integrated system combining wind-solar hybrid power generation and seawater desalination has been constructed for a community on an island in Indonesia, establishing a comprehensive technology demonstration covering the entire water resource chain from intake, production, utilization to discharge. By building up an integrated 720kW Wind-Solar-BESS off-grid power generation system, the project ensures a stable power supply for the seawater desalination facility under the complex island conditions. The desalination system employs advanced technical processes including pretreatment, reverse osmosis desalination and post-mineralization, achieving an annual production capacity of 175,000 tons of purified water, sufficient to meet the daily demand of approximately 3,000 residents in that area. The system generates over one million kilowatt-hours of electricity annually, resulting in a reduction of more than 520 tons of carbon emissions per year. This shows a successful integration of hybrid renewable energy power generation and seawater desalination technologies.

The project innovatively implements seawater resource utilization and zero-carbon discharge technologies, effectively preventing secondary environmental pollution. Taking into account the seasonal rainfall characteristics of the island, a multi-source water resource scheduling system has been established to optimize freshwater storage and distribution strategies, thereby delivering significant ecological and social benefits. With the equipment domestic manufacturing rate exceeding 90% in China, the system demonstrates strong replicability and scalability, making it suitable for promotion in island nations across Southeast Asia and other Belt and Road Initiative partner countries. Through modular design and system-level integration, the project enhances implementation efficiency and provides a Chinese model for addressing freshwater scarcity in global island regions, offering robust support for China's new energy and water resource technologies to expand internationally. (2025-07-25)