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Concentrated solar systems for water security in the middle east and north africa

February 2021
Gallery CSMED 1
Gallery CSMED 1


This Solution aims to provide sustainable, cost-efficient, robust and simple to operate technology which cleans/distils wastewater and otherwise unusable, or contaminated water sources, to provide clean, pure and safe water for where there is need. Concentrated Solar Multi Effect Distillation & Dewatering Systems (CSMED) uses solar thermal energy to process water from a range of sources including, for example, agriculture, industry, mining or municipal wastewater, brackish bore and hyper-saline water (including salt lakes), seawater and even mine tailings dams. The clean and safe water can then be reused for agriculture, mining and industry, thus taking pressure off precious freshwater sources. In addition, it can also be used to supply or supplement safe drinking water where needed, made available for municipal and local business use or be released back into the natural landscape. Reclaiming, purifying and reusing water reduces risks of leaching and release of contaminated wastewater into soils, watercourses, groundwater and marine environments.

  • /
Label Date February 8, 2021
From United States
Maturity stage Prototype testing 1:1 in the lab
Looking For Network, New clients, Visibility, Funding, Partners, Credibility

The environmental benefits

  • Each CSMED unit can supply around 10,000,000 litres of distilled water p.a to where there is need from otherwise unusable sources, reducing stress on available fresh water sources.
  • Each CSMED unit can provide enough distilled water per day at source and off grid for in excess of 3,000 kg of green hydrogen production
  • The CSMED units utilisation of Solar Energy as the primary source is estimated to result in 180MT - 350 MT of CO2e savings p.a. per unit when compared with fossil fuel powered alternatives
  • The CSMED Dewatering system can provide Zero Liquid Discharge (ZLD) solutions that can eliminate environmental impact of concentrated brine discharge into the environment

The Financial benefits

  • At Scale, CSMED Levelised Cost of Water is calculated to be in line with current costs of tap water in some regions
  • In some cases, for example, in remote communities, the CSMED cost of water can be up to 70% cheaper when compared with current supply practices
  • In some regions the CSMED units used to process contaminated water on site can save customers around 90% on their current clean water supply costs

Activity Region

  • /

North america

United States,



  • Headquarters
  • Activity

Company Profile

Low Impact Technologies (LIT)

Solar Thermal Water Purification/Desalination & Dewatering - Clean Water Production & Green Hydrogen Energy Distillate

View company profile Solution website
Headquarters Fletcher, NC 28732, USA

Networking Partner


Waterpreneurs is a global “for-impact organisation”, supporting the scaling-up of impact investments financing the growth of WASH enterprises operating in developing countries, and respecting human rights. Waterpreneurs brings extensive knowledge of the water and sanitation entrepreneurial sector, impact investing and facilitation of marketplaces.

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The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. This information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances. The innovator Low Impact Technologies (LIT) has asserted ownership of the intellectual property rights for images, videos, and content showcased above, affirming full and unrestricted usage rights, and has provided explicit permission for the Solar Impulse Foundation to publish such information designated as "public" in the application form.