A Global First: Mwanza District Hospital Pioneers Green Hydrogen Technology in Malawi

On November 27, 2025, Mwanza District Hospital in rural Malawi achieved a historic milestone that could transform energy access and sustainable cooking across Africa. Loughborough University’s Centre for Renewable Energy Systems Technology (CREST) successfully demonstrated the world’s first full-scale lead-acid battery-electrolyser test unit, producing green hydrogen of over 99% purity and using it for clean cooking at the hospital.

This breakthrough represents far more than a technological achievement at a remote rural hospital—it offers a scalable, cost-effective model for addressing energy poverty and indoor air pollution that claim hundreds of thousands of lives annually across the African continent.

The Technology: A Novel Approach to Green Hydrogen

Unlike conventional electrolysers that are expensive to operate and require continuous running to justify capital costs, the lead-acid battolyser provides 40 litres of hydrogen per minute, with materials costing only £23 per cell. This dramatic cost reduction is achieved through an elegant innovation: repurposing the chemistry of lead-acid batteries to generate hydrogen.

The system operates in three complementary modes. It functions as a traditional battery storing solar energy, as a hydrogen generator when the battery is full, or as a combined system producing both electricity and hydrogen simultaneously. By leveraging widely available materials, this approach provides a potentially cost-effective and sustainable alternative to conventional electrolysers.

In just over a month since the test unit arrived by shipping container from CREST’s laboratories at Loughborough, the foundations were laid, the battery-electrolyser commissioned, the main pit dug to house 350 metres of plastic pipe to store the hydrogen and the system connected to PV panels.

Addressing Malawi’s Energy Crisis

The deployment at Mwanza District Hospital directly targets two critical challenges facing rural Malawi. In Malawi, only 26% of the population have access to electricity, and 98% rely on firewood and charcoal for cooking. The consequences are severe: poor indoor air quality causes approximately 700,000 deaths annually across Africa, with over 22,000 deaths in Ivory Coast alone.

As well as providing enough energy for the new kitchen block—replacing the hospital’s previous reliance on firewood and charcoal—the system will provide backup solar energy for lighting, refrigeration, and medical equipment for two wards, if required. This dual functionality makes the technology particularly valuable in healthcare settings where reliable power and clean cooking fuel are essential.

A Remarkable Journey from Lab to Field

The transformation from theoretical concept to operational system happened with remarkable speed. The first system was tested in Loughborough in July 2025, achieving 99% hydrogen purity. The transition from prototype testing to full-scale demonstration in less than five months demonstrates the team’s engineering excellence and project management.

PhD researcher Soustain Chigalu cooked bean stew using green hydrogen produced by the battery-electrolyser in the hospital’s new kitchen, making this not merely a technical demonstration but proof that the technology delivers practical, usable results. Chigalu’s involvement underscores the research project’s commitment to engaging local perspectives and ensuring community acceptance of the innovation.

International Collaboration and Recognition

The technical development and deployment is part of the £1.5M Innovate UK MESCH (Modular Energy Storage with Clean Hydrogen) project, where CREST researchers are working with the Consortium for Battery Innovation, Ultima Forma, Monbat and RENAMA and INFLO in Malawi. This international partnership brought together leading institutions and companies to translate research into real-world application.

The project’s excellence has garnered prestigious recognition. The battery-electrolyser team won the esteemed Stewart Dow Memorial Award at the Hydrogen Scotland Conference in Glasgow on 28 October, celebrating excellence in hydrogen and fuel cell innovation.

Scaling Global Impact

Malawi is just the beginning of a broader deployment strategy. There is funding to get four units running by the end of 2026 in Malawi, Zambia, the Ivory Coast and at Loughborough University Science and Enterprise Park. A further unit is ready for shipping to Zambia and is undergoing extensive control system testing, as part of the €10m Horizon Europe LoCEL-H2 project.

These demonstrators serve not only as energy solutions but as models for policy development. The pilot aims to shape green hydrogen policy, raise awareness among rural communities, refine the system, and inform the business model to scale the technology for sub-Saharan Africa.

Environmental and Health Benefits Beyond Cooking

The implications extend far beyond replacing charcoal at a hospital kitchen. Lead is the world’s most recycled product, which allows it to be cheaply and effectively recycled back into new battery-electrolysers at the end of its life. This circular economy approach minimizes environmental impact while maintaining affordability.

Moreover, beyond its global humanitarian impact, the battery-electrolyser also offers a solution to UK energy challenges such as wind curtailment, converting excess renewable power into hydrogen and strengthening the UK’s hydrogen economy. The technology’s versatility means it addresses energy challenges across diverse geographic and economic contexts.

The Path Forward: Challenges and Opportunities

While the November 27 commissioning was a triumph, challenges remain. The research team has indicated that approximately £40 million in additional funding would be needed to achieve full commercial viability and necessary certifications. Yet the success at Mwanza demonstrates that the technical barriers have been overcome—the remaining challenges are primarily financial and regulatory.

Commissioning tasks on the tank are underway to ensure a smooth handover, with the system on track to be fully commissioned and handed over to Mwanza District Hospital early next year.

A Model for Sustainable Development

The Mwanza District Hospital project exemplifies how innovation can meet urgent humanitarian needs while advancing climate and energy goals. In a rural hospital in one of the world’s poorest countries, researchers and engineers have deployed a technology that was laboratory-tested just months earlier—producing green hydrogen of pharmaceutical purity to power sustainable cooking.

As global efforts to achieve net-zero emissions accelerate, this Malawian hospital stands as a beacon, demonstrating that cost-effective, scalable clean energy solutions are not theoretical future technologies. They are operational today, improving lives, saving the planet, and opening pathways toward a sustainable energy future for the 13% of the global population that currently lacks electricity access.