Capture6, a company specializing in transforming waste brine into fresh water and carbon removal solutions, has secured $27.5 million in Series A and project funding. Capture6’s Series A financing round, led by private equity firm Tetrad Corporation, saw participation from Hyundai Motor Group’s ZER01NE Ventures, Energy Capital Ventures, Elemental Impact, Bridge Investment, Sopoong Ventures, Third Derivative, Stan and Jane Rodbell, and the Jacob S. Shapiro Foundation.

Financial advisory for the raise was provided by Rothschild & Co. With this funding, Capture6 aims to accelerate the development and deployment of its water recovery and carbon removal technologies worldwide.

Innovative Technology Addressing Climate and Water Challenges

Capture6’s integrated system connects directly with existing water infrastructure, offering a novel approach to both carbon removal and water treatment. Capture6 turns waste brine from desalination into a solvent that directly captures CO2 in one step, avoiding energy-intensive multi-step processes. This process permanently captures carbon, recovers freshwater that would be wasted, and produces valuable green chemicals for water treatment facilities.

Capture6 CEO Ethan Cohen-Cole stated that climate change is causing water insecurity for much of the global population, increasing demand for freshwater while worsening the issue due to the carbon-intensive nature of current water treatment methods.

He explained that Capture6’s approach helps mitigate this challenge by reducing waste streams from desalination and wastewater treatment, creating new water sources, cutting waste disposal costs, enhancing the efficiency of water production facilities, and simultaneously supporting decarbonization efforts.

As freshwater demand will surpass supply by 40% by 2030, Capture6 offers a scalable solution for water security and resilience.

Elemental Impact supported Capture6’s Palmdale project, eliminating 100 acres of brine ponds and cutting lifetime costs by 40%.

Also read: Pilot Energy and Capture6 Partner for Direct Air Capture and Water Treatment Project

A Global Expansion Strategy

Capture6 is rapidly scaling its impact, with four water-positive carbon capture facilities announced across three continents. The company is working with industrial partners in the US, South Korea, New Zealand, Australia, and the Middle East.

In 2024, Capture6 also revealed a significant milestone: Frontier enabled an up-front purchase of 1,000 tons of carbon removal for Shopify and Stripe, further establishing the company’s technology and commercial success.

TotalEnergies has entered into a long-term agreement with the German energy company RWE to supply 30,000 tons of green hydrogen per year to the Leuna refinery in Germany. Starting from 2030, the agreement will span 15 years and is part of TotalEnergies’ goal of decarbonizing hydrogen in its European refineries by the end of the decade.

Hydrogen Production and Delivery

RWE will construct and run a 300 MW electrolyzer plant at Lingen to manufacture the green hydrogen. RWE will establish a local storage facility and will also transport the hydrogen via a 600 km pipeline directly to the refinery. The project will cut 300,000 tons of CO2 emissions each year, which will make iit the largest hydrogen supply deal in Germany’s hydrogen sector.

Markus Krebber, Chief Executive Officer of RWE, said,”We are proud to have secured the first long-term offtake agreement for green hydrogen of this size with TotalEnergies in Germany. Six months after the investment decision for the construction of the 300 megawatt electrolysis plant in Lingen, we have acquired an important anchor customer in TotalEnergies. This shows that hydrogen works with the right incentives for customers.”

Also read: TotalEnergies Inaugurates Yunlin Offshore Wind Farm in Taiwan

TotalEnergies’ Commitment to Decarbonization

As part of its overall decarbonization policy, TotalEnergies is already busy diminishing the carbon intensity of its refining activities in Europe. In addition, the company has committed to utilizing low carbon hydrogen as one of the means to achieving this, with the aim of reducing its annual CO2 emissions by some three million tons by 2030.

To facilitate this transition, TotalEnergies has also subscribed to over 200,000 tons annually of green and renewable hydrogen for French, German, Belgian, and Dutch refineries.