Major U.S. Direct Air Capture projects with Heirloom announced

Major U.S. Direct Air Capture projects with Heirloom announced
Major U.S. Direct Air Capture projects with Heirloom announced
Rendering of the 17,000 ton per annum DAC facility in Shreveport, Louisiana

Heirloom, a leading U.S. Direct Air Capture (DAC) company, has unveiled plans to construct two DAC facilities in Shreveport, Louisiana, capable of jointly removing up to 320,000 tons of carbon dioxide from the atmosphere each year. Both facilities will deploy Leilac’s innovative electric calcination and carbon capture technology under a global licence agreement.

The first facility, with a capacity to remove ~17,000 tons of CO2 annually, is slated to commence operations by 2026. A second facility, designed to handle ~300,000 tons per year, will be developed in phases, starting with an initial capacity of ~100,000 tons expected to be operational by 2027.

“Direct Air Capture is a huge potential market in the global effort to address climate change. Heirloom and Leilac’s partnership and complementary technologies deliver an innovative pathway to drive down DAC costs and be at the forefront of this exciting opportunity. It is pleasing to see the significant progress being made.”

Phil Hodgson

Phil Hodgson

Calix Managing Director and CEO

“We couldn’t be more excited to be building these new facilities in Northwest Louisiana. These investments not only bring meaningful economic activity and job creation to the region, but also help to cement Louisiana as a leader in this new energy economy and further America’s leadership on the global stage.

“Coming shortly after we opened America’s first commercial DAC facility, this expansion in Louisiana continues Heirloom’s strong momentum as we work toward billion-ton scale.”

Shashank Samala

Shashank Samala

Heirloom CEO

‘Carbon clean-up’

Carbon dioxide removal is predicted to play a critical role in preventing the worst effects of climate change. An estimated 1-10 billion tonnes of atmospheric CO2 removal per year will be required to mitigate excess emissions and limit global warming to 1.5 °C. The ongoing development and deployment of DAC technology is crucial in the quest meet global climate commitments and ultimately achieve net-zero or even net-negative emissions.

Leilac’s partnership with Heirloom brings together two complementary climate technologies to provide an efficient approach to atmospheric carbon dioxide removal by DAC. Through the use of low cost and abundant limestone, modular and scalable designs, and efficient and renewably powered electric heating, Heirloom and Leilac’s combined approach aims to deliver a fast and low-cost path to permanent CO2 removal.

The partnership also aims to accelerate the deployment of renewably powered electric calcination technology for the decarbonisation of hard-to-abate industries, such as cement and lime, in support of a just transition to sustainable local industries.

Scaling up

Heirloom facility in California
Heirloom’s pilot facility in Tracy, California

A phased scale up approach is designed to enable technical, engineering, and operational learnings and efficiencies that support more cost-effective carbon dioxide removal at scale.

Following the signing of a perpetual global licence agreement and a collaboration agreement in October 2023, Leilac and Heirloom have continued to progress the engineering and design of DAC plants using Leilac’s electric calcination and carbon capture technology. These designs have been supported by ongoing R&D campaigns using Calix’s electric calciner pilot-plant at the Calix Technology Centre.

The 300,000 ton per year facility is Heirloom’s contribution to Project Cypress, a DOE-supported DAC Hub eligible for up to $600 million in government funding. In addition, the State of Louisiana will contribute up to $10 million in economic incentives for the projects, reflecting bipartisan support for DAC in the state. Combined, the DAC facilities are expected to create at least 1,000 construction jobs and over 80 permanent jobs.

Permanent carbon removals

Heirloom is partnering with CapturePoint, a carbon management company, to store the CO2 captured from these facilities in Class VI underground wells – a safe, durable, and permanent storage solution. The pipeline and storage wells used for Heirloom’s captured CO2 will be dedicated to permanent CO2 storage. Both facilities will be fully powered by additional renewable energy sources.

Global collaboration and licence agreements

In addition to significant public funding, Heirloom will be responsible for financing the remaining capital expenditure for the projects, and will also pay Leilac for associated engineering services.

Once operational, both DAC facilities will be covered by Leilac and Heirloom’s global licence agreement. Under the terms of the licence, Heirloom will pay Leilac a minimum of US$3/tonne of CO2 separated by the Leilac technology. A higher variable royalty rate linked to the local CO2 value is expected to become the prevailing future royalty rate as the cost of deployment falls.

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Major U.S. Direct Air Capture projects with Heirloom announced


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