MIT Engineers Connect Solar Panels Directly to An Electrodialysis System, Eliminate Batteries, Adjust Current and Flow 3 to 5 Times Per Second, Capture Over 94% of Generated Energy, and Achieve Up to 5,000 Liters of Water Per Day in Real Tests for 6 Months in New Mexico

Written by Noel Budeguer

Published on 16/02/2026 at 12:10

Updated on 16/02/2026 at 12:11

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While Traditional Plants Require Heavy Infrastructure, An MIT Prototype Focuses on Simplicity: Direct Connection to the Solar Panel, Dynamic Control 3–5 Hz, Average Efficiency Above 94%, and Validation in Alamogordo, Indicating a More Feasible Path for Off-Grid Potable Water

A team from the Massachusetts Institute of Technology (MIT) has developed a desalination system powered directly by solar panels that completely eliminates the need for batteries — even when sunlight varies throughout the day.

The advancement, announced on October 8, 2024, by MIT News, could represent an important step in bringing potable water to arid regions and isolated communities without reliable access to the electrical grid.

How The Technology Works

The system uses electrodialysis, a method that removes salt from water through an electric field applied to selective ion membranes.

ARTICLE CONTINUES BELOW

Efficiency Above 94% in Real Tests

During field tests conducted for six months at the Brackish Groundwater National Desalination Research Facility (BGNDRF) in New Mexico (USA), the system demonstrated:

Utilization of over 94% of the generated solar energy
Production of up to 5,000 liters of water per day
Estimated capacity to serve around 3,000 people

The results were published in the scientific journal Nature Water, in the article titled:

“Renewable Desalination Without Energy Storage: Direct-Drive Photovoltaic Electrodialysis via Flow-Commanded Current Control”.

Who Is Behind The Project

The work was led by Amos Winter, professor of Mechanical Engineering at MIT and director of the K. Lisa Yang Global Engineering and Research (GEAR) Center, with contributions from Jonathan Bessette and Shane Pratt.

The project received support from the National Science Foundation, the Julia Burke Foundation, the MIT Morningside Academy of Design, as well as technical support from companies such as Veolia Water Technologies and Solutions and Xylem Goulds.

(From left to right): Jon Bessette, Shane Pratt, and Muriel McWhinnie (UROP) stand in front of the electrodialysis desalination system during an installation carried out in July.

Why This Matters Globally

Traditional desalination consumes large amounts of energy and often relies on complex infrastructure. By eliminating batteries and increasing the utilization of solar energy, the system reduces operational costs and simplifies installation.

In a world where over two billion people live under water stress, decentralized and renewable energy-driven solutions may become increasingly strategic.

According to MIT, the team plans to turn the technology into a company in the coming months, seeking to expand its practical application.

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MIT Engineers Connect Solar Panels Directly to An Electrodialysis System, Eliminate Batteries, Adjust Current and Flow 3 to 5 Times Per Second, Capture Over 94% of Generated Energy, and Achieve Up to 5,000 Liters of Water Per Day in Real Tests for 6 Months in New Mexico

While Traditional Plants Require Heavy Infrastructure, An MIT Prototype Focuses on Simplicity: Direct Connection to the Solar Panel, Dynamic Control 3–5 Hz, Average Efficiency Above 94%, and Validation in Alamogordo, Indicating a More Feasible Path for Off-Grid Potable Water

How The Technology Works

Efficiency Above 94% in Real Tests

Who Is Behind The Project

Why This Matters Globally

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MIT Engineers Connect Solar Panels Directly to An Electrodialysis System, Eliminate Batteries, Adjust Current and Flow 3 to 5 Times Per Second, Capture Over 94% of Generated Energy, and Achieve Up to 5,000 Liters of Water Per Day in Real Tests for 6 Months in New Mexico

While Traditional Plants Require Heavy Infrastructure, An MIT Prototype Focuses on Simplicity: Direct Connection to the Solar Panel, Dynamic Control 3–5 Hz, Average Efficiency Above 94%, and Validation in Alamogordo, Indicating a More Feasible Path for Off-Grid Potable Water

How The Technology Works

Efficiency Above 94% in Real Tests

Who Is Behind The Project

Why This Matters Globally

A giant printer called the “Ferrari” of concrete has landed in Latin America and can already build a 120-square-meter house in just 48 hours, making the traditional construction site look like something from the last century.

Great Atlantic Sargassum Belt has ceased to be a climatic phenomenon and has become a biological system that feeds on itself, with 8,000 kilometers in length, 37 million tons of algae, and scientists confirm that it is now permanent.

Brazil will harvest a record crop of up to 357 million tons of grains, but it does not have the capacity to store a large part of it. The storage deficit has reached the highest level in history and is equivalent to almost the entire production of Argentina.

End of bricklayers laying brick by brick: robot places more than 2,000 bricks per day, automatically applies cement, works with only one human operator next to the machine, and transforms traditional masonry into a high-speed semi-automated operation.

Philippines begin construction of the country’s largest desalination plant in a city without enough fresh water to grow, and the 66,500 m³ per day plant will transform the sea into drinking water for 50,000 homes in 24 months with reverse osmosis technology from SUEZ and JEMCO.

Scientists have discovered that the Earth recycles its own continents in the depths, dragging pieces of crust down during plate collisions and returning them later as magma, in a mechanism called relamination that has helped build the continents for billions of years.

During the construction of a cargo terminal in the Northeast, workers stumbled upon the bones of a long-necked dinosaur about 20 meters long that lived 120 million years ago.

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