While the wind power electricity generates has a small carbon footprint, the towers of conventional wind turbines are predominately made using carbon-intensive materials like steel. Swedish company Modvion believes it has found a greener alternative — building turbine towers from wood.

Almost two tons of carbon dioxide are emitted for every ton of steel manufactured, and a modern onshore wind turbine “contains around 120 metric tons of steel per megawatt of capacity,” according to industry group WindEurope.

Instead of steel, Modvion uses laminated veneer lumber, made from multiple layers of wood stuck together with adhesives. The LVL boards are manufactured into modules which are then transported and assembled into cylinders on site, before being stacked on top of each other, and joined with glue, to create a tower.

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📸: Paul Wennerholm/Modvion