Sustaera's 3rd-Gen DAC Could Crack the $100/Ton Barrier

For years, direct air capture technology has carried a frustrating reputation: big promises, sky-high costs, and modest results. That story is starting to change, and a North Carolina startup is leading the shift.

Sustaera Inc. has just announced a major efficiency breakthrough with its electro-thermal DAC system, achieving over 90% operational efficiency. That's more than double what the best thermal competitors can manage, and it could be the unlock the carbon removal industry has been waiting for.

Sustaera RTP, NC Prototype & Development Lab

Structured sorbent technology with integrated electric resistive heating for carbon capture and carbon removal

❮ ❯

>> In Other News: Ballard Announces Commercial Agreement With New Flyer For 50 MW Of Fuel Cell Bus Engines

Why Past DAC Fell Short

The DAC industry's early generations struggled with two core problems: energy hunger and capital intensity. First-generation, high-temperature systems were rigid and couldn't achieve carbon-negative operations. Second-generation technologies improved on efficiency but still demanded large baseload power supplies, which are increasingly costly and constrained.

The result? A sector that sold carbon removal credits it couldn't fully deliver. For buyers like Stripe and Shopify, that gap between commitment and reality was a growing problem.

Sustaera's third-generation approach is built to fix that. Its nano-structured sorbent technology, paired with integrated electric resistive heating, operates at a fraction of the energy and capital cost of older methods.

"Thermal technologies max out at around 40% efficiency. We've recently achieved 90%+ efficiency, using far less capital than traditional thermal approaches, and we're still innovating."

Cory Sanderson, CTO, Sustaera

What the Numbers Actually Mean

The $100/ton threshold has long been the benchmark the carbon removal industry needs to cross to unlock real market scale. Sustaera's results put a credible path to that number on the table for the first time.

Its electro-thermal process delivers 3-5x lower capital costs than alternative DAC methods. That's not just an incremental improvement. It's the kind of leap that changes the competitive math for project developers.

Even more interesting: the system uses no water and actually produces pure water as a byproduct. That makes it viable in water-stressed regions where other water-positive carbon removal approaches may not reach.

>> RELATED: DAC Breakthrough Unlocks 3x Cheaper Carbon Removal Projects

Diagram outlining Sustaera’s direct air capture technology, highlighting efficiency gains, lower capital costs, and features such as zero water input and grid-independent deployment.

A New Model for Project Developers

Beyond the efficiency numbers, Sustaera is changing how its technology reaches the market. The company is now offering a technology licensing model, which reduces risk for carbon removal project developers and lowers the barrier to deployment.

Sustaera is already in advanced talks with leading developers in the space. That momentum matters, especially as the carbon removal market continues to scale rapidly, with Sustaera positioning itself for a significant share of what the company projects as a $100B+ market ahead.

"Developers can now capture carbon cost-effectively, whether for sequestration or utilization. The technology is beautifully simple. It delivers measurable results and is easy to scale, potentially even without a grid connection."

Ben Gardner, CEO, Sustaera

Off-grid capability is a particularly significant detail. It means deployment isn't tied to grid access or power availability, which opens up sites that would otherwise be off the table entirely for next-generation carbon removal approaches.

A breakdown of direct air capture technology highlights the high efficiency and low cost targets of Sustaera.

Where This Fits in the Bigger Picture

Sub-$100/ton carbon removal would put DAC in direct competition with emerging alternatives like biochar, a category that has been gaining ground while DAC remained expensive. Sustaera's results don't just improve DAC's standing. They potentially reshape the entire carbon removal competitive landscape.

Compared to projects like Oxy's STRATOS, which represents the scale ambitions of 2nd-gen thermal technology, Sustaera's approach signals that the next wave of DAC may look fundamentally different: smaller, more flexible, and far less capital-intensive.

With DOE backing, Breakthrough Energy Ventures support, and a licensing model that could scale quickly through third-party developers, Sustaera is positioning itself to capture a meaningful share of the $100B+ carbon removal market ahead.

The Floor Has Just Been Raised

The DAC industry has spent years proving it can work. What it hasn't proven, until now, is that it can work at a price the market can absorb. Sustaera's 90%+ efficiency milestone is a meaningful step toward closing that gap.

For the growing list of companies and governments with net-zero commitments on the clock, that progress arrives at exactly the right time. The race to scale DAC isn't slowing down. It's just found a faster lane.