Cutting the first sod to a larger scale Power-to-X plant in Odense

ESTECH team members and construction workers were in high spirits this morning when they witnessed CEO Søren Gert Larsen cutting the first sod to a larger scale demonstration plant for combined carbon capture and green hydrogen production at VandCenter Syd

The ceremony marked a milestone after the past two year’s intensive planning and testing performed by our dedicated team of engineers and project managers from both ESTECH and our sister company PureteQ.

The pilot plant, that was decommissioned last month, served as a test plant in preparation for the coming demonstration plant and has hosted a great deal of visits from both top politicians, science students and even the Royal Highness Crown Prince Frederik. Room is now made for something bigger, and hopefully the new demonstration plant will attract many more visitors and prospective stakeholders in the future to come.

The capacity of the demonstration plant is upscaled to near-industrial size. When the demonstration plant is up and running, we will not only demonstrate the scalability of the technology, but we also expect the plant’s energy consumption to be severely reduced. When the new demonstration plant is built, the next upscaling level will reach commercialization.

The technology is unique in its approach to carbon capture, as it merges two sustainable operations in one combined process – we call the technology CAPPOW (a contraction of Carbon Capture and Power). The technology can be applied to combined heat and power plants, as well as waterworks, and can be linked to any industrial production that emits CO2.


  • The technology is named CAPPOW (a contraction of Carbon Capture and Power).
  • VCS Denmark – one of the largest water and wastewater utilities in Denmark – are providing their facilities to the ESTECH project plant that comprises a CO2 absorber based on our sister company PureteQ’s scrubber technology and an electro-chemical cell with related tanks, pumps, and control panel.
  • Our scrubber-based hydroxide solution is regenerated through electrochemistry. The main benefit of an electro-chemical reaction is that the process generates hydrogen (Power to X).
  • The technology uses an electro-chemical process for desorption of hydrogen, and PureteQ scrubber technology as absorber to capture CO2 from flue gas.
  • The technology of the pilot plant has obtained proof of concept and will be upscaled to a demonstration plant in 2023 that will be capturing several hundred kg/h CO2.
  • ESTECH’s technology uses potassium hydroxide (a less health hazardous substance) for the carbon capture process instead of the standard amine technology used in many industrial processes.
  • The technology has potential to consume less energy than the standard amine technology and will thereby be cost-effective.
  • The technology is patented in both the US and Europe.



Søren Gert Larsen, CEO
M: +45 3080 7527
E: sgl@estech.dk


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