Carbon Collect Launches Capital Raise to Advance Next-Generation MechanicalTree™ Platform
Gen-II operating results and recent engineering work are informing Gen-III integration, manufacturing readiness and deployment planning
DUBLIN, Ireland (June 25, 2026) Carbon Collect, developer of the MechanicalTree™ passive direct air capture platform, today announced further progress toward its first commercial deployment. Building on more than 30 years of direct air capture research led by Professor Klaus Lackner and foundational intellectual property from Arizona State University, Carbon Collect has developed the technology into a scalable platform designed for repeatable manufacturing and deployment.
MechanicalTree technology captures CO₂ from ambient air using natural airflow rather than fans or blowers. By eliminating the electricity required for powered air movement and using a modular architecture that can be configured at different scales, passive DAC offers the potential for lower energy use and greater flexibility in how and where capture capacity is deployed.
The platform has been designed for repeatable, high-volume manufacturing using lightweight, non-metallic components and production processes optimized for automation. This manufacturing-led approach is intended to support deployment at scale without requiring one-off engineering for each installation.
“For direct air capture to scale, systems must use energy efficiently and be manufacturable and deployable repeatedly,” said Caroline Keeling, Chairperson of Carbon Collect. “MechanicalTree is designed around passive airflow, lightweight materials, and a modular architecture that supports different deployment sizes. That combination creates a credible pathway from proven technology to scalable commercial deployment.”
The development of the MechanicalTree has benefited from a multi-year program of work supported by the U.S. Department of Energy and from collaboration with experienced engineering and manufacturing partners, including PM Group and Mergon. This work has supported progression from full commercial-scale operation and testing to system design, manufacturing development, and preparation for deployment.
Carbon Collect is raising $20 millionto complete Gen-III integration, prepare the platform for repeatable, high-volume manufacturing, and support the first commercial deployment.
“Carbon Collect has deliberately put the technology first,” said Pól Ó Moráin, Chief Executive Officer of Carbon Collect. “We have developed and operated the MechanicalTree at full scale, delivered meaningful advances with Gen-II, and advanced the Gen-III design. We are now raising capital to support a defined commercial program that includes completing Gen-III integration, preparing the platform for repeatable manufacturing, and moving toward the first commercial deployment.”
Recent engineering progress informs Gen-III
Carbon Collect’s technical program has progressed from Gen-I, which demonstrated passive capture and low-temperature regeneration at full commercial scale, to an operating Gen-II system that is generating measurable performance data under real-world conditions.
Recent technical work has examined three areas of MechanicalTree development: Gen-II operating performance, the influence of climate and site conditions on passive capture, and the ongoing refinement of the regeneration model. Together, these findings are informing Gen-III engineering, manufacturing readiness, and deployment planning.
Gen-II operating work, documented in a May 2026 report by researchers at Arizona State University, showed consistently higher CO₂ yields than Gen-I across 41 completed test cycles.
The Gen-II design incorporates a higher-capacity sorbent, redesigned disk modules, and a lighter regeneration chamber. These changes reduce system weight and thermal mass while advancing the platform toward automated production and repeatable manufacturing.
Separate analysis by PM Group found that temperature, humidity, and wind can significantly affect capture performance and resource intensity. The findings underscore the importance of incorporating climate and site conditions into system design and deployment planning.
A further review of Carbon Collect’s regeneration model identified specific refinements and additional data requirements to strengthen its predictive value as the Gen-II operating dataset expands.
Preparing for first commercial deployment
Carbon Collect is applying these operating results, climate insights, and modeling recommendations to its Gen-III platform program.
The proceeds from the raise will support Gen-III engineering and integration, process automation, measurement and control systems, manufacturing and supply chain readiness, and preparation for early commercial deployments.
Carbon Collect has appointed AMC Advisory to lead and manage the investment process.
About Carbon Collect
Carbon Collect is developing MechanicalTree™ technology, a passive direct air capture platform designed to remove CO₂ from ambient air without fans. The platform uses low-temperature thermal-vacuum regeneration to release a concentrated CO₂ stream for storage or use. The technology builds on more than 30 years of direct air capture research led by Professor Klaus Lackner and first developed at Arizona State University.
Carbon Collect is advancing the MechanicalTree through an iterative platform-development program focused on performance, automation, manufacturability and repeatable deployment.
Media and investor contacts
Carbon Collect
sunny.uberoi (at) carboncollect.com
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info (at) africamerchantcapital.co.uk