Nov 09, 2022

Hitachi Zosen Corporation's proposal “Demonstration of a decarbonized seawater desalination system using solar power generation and NAS storage batteries in the Maldives” has been selected by the Ministry of the Environment of Japan as its " Project for Creation and Dissemination of Decarbonization Technologies through Co-Innovation”.

　In Maldives, seawater is desalinated using diesel power generation, and the country is considering the introduction of a seawater desalination system that uses renewable energy power in order to achieve carbon neutrality. In this demonstration, only grid-independent solar power generated on any island will be used to desalinate seawater using the reverse osmosis (RO) membrane technology without GHG emissions. In addition, surplus power from solar power generation is stored in storage batteries, and when there is little solar radiation, seawater is desalinated using power supplied from the storage batteries for effective use of renewable energy. Through these various processes, we aim to establish technologies that contribute to decarbonization.

The outline of the project is as follows.

1.Public offer by: Ministry of the Environment of Japan

(Execution by: Global Environment Centre Foundation)()

2.Implementation by: Hitachi Zosen Corporation

3.Project name: Decarbonized seawater desalination system using solar power generation and NAS storage batteries in Maldives

4.Delivery: October 2022 to the end of January 2024 (plan)

　Hitachi Zosen will continue to expand its water business, including seawater desalination and industrial water treatment, and contribute to global water demand.

■About the Project for Creation and Dissemination of Decarbonization Technologies through Co-Innovation

The Ministry of the Environment provides subsidies for projects that renovate and demonstrate high-quality decarbonization technologies that meet the characteristics of each partner country in order to reduce energy-related CO2 emissions in the partner country by creating mutually beneficial innovations (co-innovation) through collaboration between Japan and the partner country.