Zero-Carbon Water · Zero Grid Required
Containerized desalination systems that run on their own renewable energy sources.
THE GOAL
Farming uses most of the fresh water on Earth, yet desalination has always been priced for drinking water, not fields. Energy is the reason. It is the largest cost of every gallon, and the industry spent fifty years driving it down to diminishing returns. The unlock was not a better membrane. It was renewables, and a different question.
See how the math changes →THE INSIGHT
The old question
How much?
For fifty years, the industry drove the energy per gallon down, into diminishing returns.
The question now
When?
Renewables are cheap but not constant. So Modulus makes water when clean power is plentiful, and stores the water, not the electrons.
Most modern desalination plant designs assume an electrical grid that never goes dark. They have to, because electricity is the single largest cost of the water they produce, and the demand is continuous while the plant runs. Renewables can supply that electricity more cheaply, but not around the clock, so the real constraint is no longer efficiency, but timing: not "How much?" but "When?" The easy answer is batteries, but they're expensive storage devices that wear out. Modulus runs when clean energy is plentiful and stores the product, water, instead of electrons.
THE RESULT
In lab testing at Georgia Tech, against a simulated off-grid renewable supply, the Modulus controller produced more than 90% of the water an ideal controller would from the same energy, with no large battery. The point is the approach: smart control, not expensive storage, is what closes the gap between intermittent power and steady water.
HOW IT WORKS
A Modulus system turns intermittent renewable power into a steady water supply, with no grid connection and no large battery bank.
Solar and wind drive the system directly. It runs hardest when clean energy is abundant, and needs no connection to the grid.

An AI controller weighs the weather forecast, the tank levels, and the plant's state to choose, moment to moment, whether to make water now or store the energy for later. In lab testing against a simulated off-grid supply, it produced more than 90% of an ideal controller's water output from the same renewable energy, with no big battery.

Water banks in simple tanks instead of costly batteries, so supply stays steady around the clock, long after the sun goes down.

APPLICATIONS
Our goal is to make renewable desalinated water cheap enough to irrigate with. Globally, agriculture is the largest consumer of water, yet desalination remains too expensive for this essential use. A Modulus system delivers reliable, renewable supplemental water to the cropland and supply chains that depend on it.
Learn more →When disaster strikes, potable water commands a premium, leading to expensive relief efforts. Our systems deploy to crisis zones in days, delivering potable water when it's needed most.
Learn more →Military bases of all sizes are vulnerable to supply chain disruptions. We supply purpose-built systems for austere environments where supply lines are vulnerable and self-sufficiency is a tactical asset.
Learn more →WHY NOW
Extreme weather creates water emergencies that expose the fragility of centralized infrastructure. After Hurricane Maria, the US Government paid more than $15 per gallon for emergency water. Today, 2.1 billion people still lack access to safe drinking water. And, on a molar basis, we're depleting our water reserves faster than our oil reserves. The need for resilient, renewable water solutions has never been more urgent.
PARTNERS & SUPPORTERS
Developed and validated with leading research institutions, with funding support from ARPA-E.