Zero-Carbon Water · Zero Grid Required

Store Water,
Not Electrons

Data centers are draining the world's freshwater. Modulus makes more of it — containerized desalination that runs on its own solar and wind.

>0%of an ideal controller's output, no big battery
Solar + windpowers it directly, zero grid required
Containerizeddeploys without custom construction
Scroll to see why it matters

THE AI WATER GAP

The supply side of a water-positive pledge.

Every hyperscaler has pledged to put back more freshwater than its data centers consume by 2030 — and that water has to be produced. Modulus is the supply side of a water-positive commitment: new freshwater from the sea, on solar and wind, delivered where it's needed.

See industrial water balancing →

THE GOAL

Make desalinated water cheap enough to grow food with.

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 question is no longer "how much energy," but "when"

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

An AI Controller That Runs Near-Optimally

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.

>0%
Of an ideal controller's water output, same energy in
0
Large batteries in the loop
See why timing is the constraint →

HOW IT WORKS

Sunlight and Wind In, Water On Tap

A Modulus system turns intermittent renewable power into a steady water supply, with no grid connection and no large battery bank.

1

Renewable power in

Solar and wind drive the system directly. It runs hardest when clean energy is abundant, and needs no connection to the grid.

Modulus system powered by integrated solar and wind
2

The controller decides

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.

AI controller managing production against renewable supply
3

Store water, deliver anytime

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

Containerized Modulus system with solar, wind, and water storage

APPLICATIONS

One Fleet, Three Markets

WHY NOW

The Water Gap Is Accelerating

Extreme weather creates water emergencies that expose the fragility of centralized infrastructure. After Hurricane Maria, the US Government paid about $25 per gallon for military-supplied 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. And now the largest companies on Earth are bidding for the same freshwater: the data centers behind AI already consume billions of gallons a year, and the hyperscalers running them have pledged to put back more freshwater than they take by 2030 — water that still has to be produced. The need for resilient, renewable water solutions has never been more urgent.

~$0
Per gallon, military-supplied water after Hurricane Maria
>0X
More water than carbon from wells
>0B
People lack safe drinking water
>0B
Gallons/yr U.S. data-center water use by 2028

ORIGINS & PARTNERS

Rooted in ARPA-E, Developed With Georgia Tech

Prototype lab-validated at Georgia Tech's Water-Energy Research Lab.

ARPA-E Georgia Tech

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