Solar RO plug & play.
Solar-powered battery desalination.

To enjoy independent clean water at any location, we have a solar powered reverse osmosis solution assisted by batteries that works everywhere. Combined state-of-the-art solar panels and battery technology allows efficient reverse osmosis, while minimizing battery size. The batteries used require no maintenance, are suitable for warm climates and enjoy a long lifetime.

This plug & play off-grid solution is containerized to be quickly commissioned in a matter of days. The solar panels are placed on top of the container. As alternative, all components can be integrated in preferred locations, to avoid impact on existing infrastructure and limit the footprint. The high-efficiency solar powered reverse osmosis is equipped with remote monitoring for control and designed for simple operation. All components are purpose-built to survive corrosive environments and ensure a long lifetime.

Solar energy reverse osmosis is ideal for remote applications with potable water generation below 3 USD per 1000 liters. Its production capacity can be doubled using a hybrid solar-grid desalination version. It runs on solar energy during the day and uses an existing energy supply during the night to reduce the payback time even more. The units are available already at a few m³ per day for remote communities, up to millions of liters of potable water per day for entire islands.

How our solar-powered desalination works:

Desalination without a carbon footprint.

The solar energy reverse osmosis solutions can be designed for any requested water supply. We provide containerized units for plug and play installation, or we can integrate all separate components to your preference into (existing) infrastructure. Please find the footprint of different capacities as examples:

Footprint indication5 m³/day
1,320 gallon/day
50 m³/day
13,200 gallon/day
200 m³/day
52,840 gallon/day
Solar panels m² (ft²)19 m² (205 ft²)190 m² (2,050 ft²)760 m² (8,180 ft²)
Battery capacity kWh990360
Option 1: Container type ft8 ft40 ft2 x 40 ft
Option 2: Desalination footprint m² (ft²)5 m² (54 ft²)17 m² (183 ft²)34 m² (366 ft²)

Solar desalination plug & play reference:


Water kiosk using solar-grid plug & play solution.

kW of solar panels
m³/day of fresh water
% of total savings
t/yr of CO2 savings

‘’There are four major issues in the provision of potable drinking water in Southeast Asia: water cost, quality, access, and environmental impact. Working with EWM technology we are able to invest locally into decentralized water production solutions that overcome each of these challenges. Starting in the Philippines, regions where we operate can now enjoy affordable high-quality water that has been produced using a sustainable method, in line with our vision.’’

John Jadczak | Managing Partner, NXTLVL Water
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Time-tested components.

Small-scale solar energy reverse osmosis with low energy consumption. Take a look at how we ensure a minimum of maintenance and stress-free operation:

We select solar panels to be highly resistant to corrosive environments from mature suppliers. Supplied with 25-year linear power warranty.

A fixed field frame or roof-mounted on a pitched roof or flat container, we make sure the frame meets the local wind loads, face the right angle for optimal performance and is corrosion resistant.

The batteries we use are maintenance free, are suitable for daily use in warm climates and ensure a +15 yr lifetime. By minimizing the required battery size we are able to limit the investment.

Most pumps have to be replaced yearly when used in salt water. We believe in quality and reliability and work with efficient variable frequency pumps who can withstand (which are suitable for) warm seawater applications, such as titanium or 904L pumps.

To avoid frequent membrane replacement, the pre-treatment will be designed for your site-specific situation. This can involve sand filtration, cartridge filtration and more.

Stress-free operation is ensured by remote monitoring, control and automation. To avoid frequent replacement, the membranes are automatically flushed with fresh water at every shut-down.

High-efficiency desalination (< 3 kWh/m³) is enabled by re-using the brine pressure, even for small-scale production. The maintenance-free energy recovery systems are constructed from (super) duplex steel.

To meet your specific applications, we can add fresh water treatment steps to the system, for example, remineralisation, UV treatment before end use or preservation dosing to make it suitable for longer term storage.

We can include high corrosive resistant modular tanks with bladder liner that can easily be shipped on a pallet and constructed on-site, requiring only a ring of tiles, instead of an entire concrete foundation.

HDPE pipe is our preferred material for long distance pipe sections as it’s able to withstand high pressures, salt water, offers flexibility to be placed in bends and withstands forces from outside. The pipe materials can both be sourced locally or shipped in.

The units are equipped with GSM-based monitoring for remote control and alarm messaging. Check in on your water supply, anywhere, anytime.

Financial case: solar RO using plug & play.
A community with access to safe and affordable water thanks to solar desalination.

The problem: expensive unsafe water
The community relies on water that is trucked in on a daily basis. The results are a questionable quality upon delivery and a high water tariff of 6 $/m³. Lacking an alternative, the people are forced to spend a majority of their limited income on water, without the assurance of good quality and sufficient availability.

The solution: solar energy desalination
This changes completely when a decentralized solution of Elemental Water Makers is put in place. The solar powered reverse osmosis solution, which can be operated to produce 5 m³/day off- grid using only solar energy. There is also the option to produce 11 m³/day in hybrid mode making use of grid or generator power during the night. The solution allows the people to enjoy savings on the water expenses of 75% and total savings of over 300.000 $. The solution’s payback is 2.5 years.

The benefits: savings & development
The community now has high-quality potable water on-site, without the dependency of water trucking and associated carbon emissions, saving 10 ton CO2 per year. The solution leads to empowerment, jobs and possibilities for education.

Water expenses

Water tariff in $/m3

Over $300.000 in total savings.

Sustainable clean water.

Become self-sufficient & save 75%.

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