December 20, 2023

MEER’s Solar Desalinator


Water scarcity is a major problem in many parts of the world, particularly in densely populated and arid areas. This problem is caused by various factors, including population growth, climate change, and industrialization, which significantly strain traditional water sources. As a result, many communities that depend on water availability for their livelihoods, such as farming and irrigation, need help to meet their basic needs. Without adequate water supplies, these communities are vulnerable to poverty, disease, and other negative impacts.

In this blog post, we aim to delve deeper into the potential of MEER's Solar Desalinator, which is still being experimented on. This innovative technology utilizes solar energy to convert seawater into potable water, thereby providing a sustainable solution to water scarcity. The Solar Desalinator operates by harnessing the sun's power to evaporate seawater, leaving behind salt residue. The resulting vapour is then condensed into freshwater, which can be used for a variety of purposes, including household use, irrigation, and industrial applications.

The Solar Desalinator is an exciting development in the field of water conservation, as it offers a reliable and sustainable way to address the pressing issue of water scarcity. MEER is currently working on improving the technology to make it more cost-effective and scalable to be deployed in communities that need it the most. 


Unveiling the Solar Desalinator

MEER's Solar Desalinator is an innovative technology that combines sustainability and innovation to address the global water crisis. This device harnesses the sun's abundant energy and repurposes discarded PET bottles, making it a versatile and affordable solution for purifying water.

The Solar Desalinator is an experimental technology that ingeniously transforms waste materials into the building blocks of transformative technologies. It is a sustainable solution that provides communities with access to clean water and improves their quality of life.

This device is ideal for small communities and remote locations lacking clean water access. It is an affordable and cost-effective way to purify water, making it accessible to people who need it. The Solar Desalinator is also easy to use, requiring minimal maintenance and no external power supply.

Desalination Process

Existing desalination methods require a significant amount of energy, usually derived from fossil fuels. However, MEER's solar desalinator uses the principle of solar distillation, which utilizes the sun's energy to convert seawater into freshwater. 

In this process, the seawater contained in a PET bottle is heated by sunlight, causing it to evaporate and leaving behind the salt and impurities. The vapor then condenses back into liquid on the inner surface of the PET bottle, resulting in freshwater. 

This clever design not only harnesses solar energy but also addresses the global issue of plastic pollution.


Materials Used    

Repurposed Transparent PET bottles, 4C-HC thermometers, 


Potential Benefits

During the experimental phase, the solar Desalinator shows great potential for various reasons:

1. Diversification of Water Sources

The Solar Desalinator is a dependable and versatile water source that reduces reliance on conventional freshwater supplies and helps to counteract the effects of climate-related water scarcities. It can be used in arid regions in the Middle East and other areas to alleviate shortages of clean water.

2. Supporting Agricultural and Industrial Sectors

In areas with limited freshwater resources, this technology can promote economic growth and food security by supporting agricultural and industrial activities.

3. Emergency Response and Disaster Relief

MEER's Solar Desalinator is a highly effective and efficient device that is designed to provide safe drinking water in emergency and disaster relief situations. The device utilizes solar energy to convert salty or brackish water into clean and potable water, making it a crucial resource in the aftermath of a disaster or humanitarian crisis where access to clean water is limited or non-existent. The Solar Desalinator can be easily transported to remote areas or disaster-hit zones and can quickly produce large quantities of safe drinking water that can help save countless lives.

4. Addressing Population Growth

As populations in certain regions continue to grow, the demand for freshwater also increases, leading to higher pressure on already scarce water resources. Our Solar Desalinator is designed to address this challenge. By effectively disinfecting and purifying seawater, it can provide a reliable source of potable water that would otherwise be unavailable. This technology is especially beneficial for areas with access to seawater resources, as it allows them to harness this seemingly infinite supply without causing any harm to the environment. With our Solar Desalinator, growing communities can now have access to a sustainable and reliable source of clean water, ensuring the well-being and safety of their residents.




The experimental phase of the solar desalinator device signifies a significant milestone in the journey towards a more sustainable and water-secure future. The technology offers a transformative solution to the global water crisis by providing a dependable and sustainable source of freshwater to communities experiencing severe water shortages. 

MEER's team of dedicated researchers in Freetown are actively working to refine the technology to ensure that it becomes a viable and scalable solution for water-scarce regions across the globe. The solar desalinator device harnesses the power of the sun to produce freshwater from saltwater via the process of desalination. The technology is designed to be highly efficient, low-cost, and easy to maintain, making it an ideal solution for remote and water-scarce regions.

The solar desalinator device has been specifically designed to cater to the needs of communities in developing countries that are most affected by water scarcity. The technology has the potential to revolutionize water management by providing a sustainable and environmentally friendly approach to freshwater production. 

MEER's researchers are constantly working to improve the technology to ensure that it can be easily adapted and customized to suit the specific needs of different communities. The solar desalinator device has the potential to reshape water management and support the needs of a growing population in a sustainable and environmentally friendly approach.

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