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Sunlight Pump

Solar-powered water pump for smallholder farmers and communities

January 2021
Gallery Sunlight Pump 1
Gallery Sunlight Pump 1


The sunlight pump is a small-scale, solar-powered water pump. Being a modular and versatile system, it can be used for a wide range of applications: productive use (e.g. irrigation, livestock, fish farming), drinking water supply and hygiene. It is an affordable, reliable and environmentally sustainable technology that brings water to where it is needed and contributes to the economic well-being and health of farmers and communities. The sunlight pump is a highly efficient water-lifting technology that does not require electricity or diesel to function. There are no operation costs, meaning that there is a higher return on investment over the lifespan of the sunlight pump. It is the right choice for anyone who wants to turn a free source of energy into time and money savings. The sunlight pump turns sunrays into savings.

  • /
Label Date January 27, 2021
By ennos
From Switzerland
Maturity stage Small scale commercialization
Looking For Network, New clients, Visibility, Funding, Partners, Credibility

Implementation Stories

Sunlight Pump by ennos
Implemented by Pyflor farm in Valle de Ángeles (Honduras) in 2017

“Pyflor” farm in Honduras has been using a 0.5 HP sunlight pump instead of a combustion pump to circulate water with fertilizer in an hydroponic irrigation system since 2017.​ This energy-saving system has enabled them to grow a lot of lettuce! The water is first lifted by the solar pump into several elevated water tanks, then passed by gravity through the numerous PVC pipes. They then purchased 3 additional sunlight pumps for other uses and to replace other gasoline pumps on the farm.


With a 375-watt solar panel installed, the average flow rate of the second solar pump is close to 15,000 liters per day, although it can reach 25,000 liters per day on a very sunny day. And as this pump operates 365 days a year without using fuel, lubricant or filter, the annual saving for the farmer is 1948 US Dollars, and for the environment that’s around 3800 kg of CO2 not emitted.


The environmental benefits

  • Delivers up to 22'000 liters/day
  • Vertical lift of up to 40 meters
  • Horizontal lift of up to 2 kilometers
  • Zero CO2 emissions. For example: 400 Watt installed PV capacity, 30 meters total dynamic head, 14’500 liters/day delivery, 300 days per year utilization will result in 978 kg CO2/year saved compared to a diesel pump delivering the same amount of water.
  • Right sized to deliver farmers water needs

The Financial benefits

  • No running costs and very low maintenance costs with longer lifetime
  • Compared to a diesel pump, the sunlight pump reaches break-even within 1-2 years with a lifespan of 10 years.
  • The sunlight pump distributors offer financing options to the end users to allow them to overcome the barrier of the upfron investment and to pay off the system over 24-36 months.

Activity Region

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  • Headquarters
  • Activity

Company Profile


The sunlight pump is a portable solar-powered water pump for smallholder irrigation and drinking water supply.

View company profile Solution website
Headquarters 2560 Nidau, Switzerland

Networking Partner

International Cleantech Network

The International Cleantech Network (ICN) is a global network of 13 cleantech clusters on the international forefront of providing innovative and sustainable solutions to meet the growing demand for green technologies.

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Solutions Associated 82


As an expert for the innovation scene in energy and environmental technologies, CleantechAlps (Sion, Switzerland) is a hub for the cleantech ecosystem, connecting its stakeholders with relevant partners.

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Solutions Associated 65

The Enterprise Europe Network

The Enterprise Europe Network helps businesses innovate and grow on an international scale. It is the world’s largest support network for small and medium-sized enterprises (SMEs) with international ambitions.

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Solutions Associated 39
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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 ennos 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.