Mammoet has won a contract from Saipem to carry out the heavy-lift scope for the construction of BECCS Stockholm, one of Europe’s first major carbon capture and removal projects.
The heavy-lift transport specialist is tasked with handling 23 components weighing between 50 and 280 tonnes and two significantly larger units — the stripper and absorber — weighing 1,500 tonnes apiece.
The two heaviest components will be installed using Mammoet’s PTC140-DS, a 3,200-tonne class ring crane capable of lifting up to 5,000 tonnes. The units will arrive at the site horizontally on barges before being rotated into a vertical position using a combination of a 1,250-tonne crawler crane and the PTC crane.
Additional crawler cranes ranging from 300 to 800 tonnes will also be deployed to assist with the assembly of the PTC and the installation of smaller components.
The 150-meter-tall PTC will arrive in Stockholm in April 2027, then assembled on site.
“Timing and planning are essential for this build. We have just four weeks to assemble the PTC, which will be achieved with two teams working in two shifts,” said Pieter van der Weele, senior project manager at Mammoet. “The installation stage is also a window of four weeks, and then we must break the crane down again in six, freeing up the area so that it can be used to build the remainder of the plant.”
BECCS Stockholm is owned and developed by energy company Stockholm Exergi. The facility will capture and store 800,000 tonnes of CO2 annually from the biogenic flue gases of Stockholm Exergi’s existing combined heat and power plant.
Saipem is designing and building the carbon capture unit, the CO₂ storage and out-shipment facilities, and installing and constructing the CO₂ compression and liquefaction units.
Operations at BECCS Stockholm are expected to begin in 2028.
Mammoet will be exhibiting at Breakbulk Europe 2026.