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NUMA Water

Water4ever: delivering safe water for all through numa pipelined water networks

March 2021

NUMA Water

Water4ever: delivering safe water for all through numa pipelined water networks

  • World Alliance Member
  • Featured Solution
  • Labelled Solution
Label Date March 8, 2021
By Water4
From United States
Maturity stage TRL 9 / CRI 3-4 - Commercial Scale Up / Multiple commercial Applications

Nearly 2.2 billion people lack access to safely managed water supplies. While developing agencies and NGOs globally have tackled this crisis through a charity approach, offering free wells and hand pumps, as well as limited training to community members on maintenance, this approach has prevented up to 40% of rural water systems to be functioning at any given time. To meet the needs of the local populations, Water4 enterprises use a market-based approach to provide a continuous safe water supply to customers through the NUMA piped water network. This modular, piped water network distributes treated water at varying quantities and scales depending on community needs. The NUMA Nexus is the core treatment and delivery system for the network. The Nexus uses micro-filtration, UV disinfection, and chlorination to treat groundwater. Solar power allows these systems to be placed anywhere in the world. After treatment, water can be pumped to branched kiosks (Nodes) or institutional and household piped connections (Nows).

The Environmental Benefits

  • A single NUMA piped system can serve up to 1,400 people with treated water, free from contamination
  • Through a combination of chlorine and UV disinfection, the NUMA treatment system can prevent up to 99.99% of waterborne diseases, such as Giardia, Salmonella, and Hepatitis A
  • A NUMA Nexus using solar power is estimated to produce less than 2% of carbon emissions per year compared to using a generator
  • A NUMA Nano is estimated to produce 1,063 lbs less CO2 per year by using solar power instead of a generator

The Financial Benefits

  • NUMA water is 36 times cheaper than local alternatives of similar quality
  • The NUMA Node has an estimated Internal Rate of Return of 16.25% over 20 years

Target client profile


Activity Region

  • Headquarters
  • Activity

Company Profile


Our mission is to use faith, innovation and empowerment to reimagine a world where all people have access to safe water.

Headquarters Oklahoma City, OK 73107, USA
Type Non-profit project
View company profile Solution website

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.

Solutions Associated 29
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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 Water4 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.