Tuesday, October 6, 2026

MediSun Energy, JA Sign Island Water Systems MoU

MediSun Energy and JA sign an MoU to combine solar power, storage and compact seawater desalination for island water systems.

Water Data Prize Newsroom
Four people stand behind a flower-covered table at an exhibition booth.
Four people stand behind a flower-covered table at an exhibition booth. Photo: MediSun Planet Pte Ltd

MediSun Energy and JA have signed an ecosystem partnership memorandum of understanding at the DRT SHOW Chengdu International Diving & Resort Travel Expo to combine solar power, energy storage and compact seawater desalination for island and coastal sites. The partners plan to deploy a “PV + Energy Storage + Smart Energy + Seawater Desalination + ESG” framework built around MediSun Energy’s VASAR desalination series and JA’s JAx platform. The proposed systems are intended for off-grid islands and marine conservation zones where conventional municipal plants and grid expansions are expensive and diesel-powered desalination carries a heavy carbon footprint and fuel pollution risk. The joint offering targets high energy consumption, high carbon emissions and high operating costs in remote island infrastructure.

Solar Power Meets Desalination

JA will provide photovoltaic generation, battery energy storage and smart energy systems, alongside digital, ESG and market branding support through its JAx ecosystem platform. MediSun Energy will provide technical specifications and operational expertise for VASAR deployments in coastal and island environments.

By pairing solar power with MediSun Energy’s VASAR miniaturised desalination units, the joint solution eliminates the need for land-heavy civil works, fossil fuel generators or traditional grid connections. The system purifies seawater on-site with zero carbon emissions, lower operating expenses and measurable ESG value.

Joseph Chua, President & Co-Founder of MediSun Planet Pte Ltd, stated:

“Remote islands and fragile coastal eco-zones are on the front lines of water scarcity and climate vulnerability. Traditional desalination requires extensive land, permits, grid access, and massive infrastructure—the problem was never the membrane, but everything built around it. By miniaturising seawater desalination into our compact VASAR systems and pairing them with JA's world-class renewable energy platform, we are delivering an end-to-end, zero-carbon solution that guarantees long-term water security while protecting marine ecosystems.”

Remote Island Infrastructure

Off-grid islands and marine conservation zones far from mainland power grids face immense operational hurdles. Traditional municipal plants and grid expansions are prohibitively expensive, rainwater collection is weather-dependent, and diesel-powered desalination creates heavy carbon footprints while risking fuel pollution at sea.

Sure Liu, JA’s Chief Sustainability Officer and President of Global Brand & Marketing, added:

“Through our open JAx ecosystem platform, JA is committed to moving beyond standalone PV products to build integrated 'PV + Storage + Smart Energy' solutions across diverse industries. Partnering with MediSun Energy allows us to extend clean power directly into essential water infrastructure, creating a scalable, zero-carbon model for island development, eco-tourism, and coastal conservation globally.”

Low Carbon Water Blueprint

The agreement marks a key milestone in expanding renewable energy applications into critical water infrastructure, providing a standardized blueprint for low-carbon upgrades, sustainable tourism and global energy transition. MediSun Energy’s platform also covers clean water, brine recovery, compact sewage treatment and portable water systems for government and industrial programs across the Gulf and Southeast Asia.

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