Cement manufacturing is one of the most carbon-intensive industrial processes, largely because the high temperatures needed to make clinker have traditionally come from burning fossil fuels. That makes the sector a major source of global CO2 emissions, and one that is difficult to clean up.
Thermal batteries are emerging as a possible solution. These devices take surplus clean electricity and convert it into stored heat, which can then be released at high temperatures to drive industrial processes. Now, in a first for the industry, cement giant Holcim plans to tap this technology for its operations.
The move signals that thermal batteries could play a role in decarbonizing heavy industry, especially where electrification was previously considered impractical. While the source does not disclose the full scope of the project or timelines, adoption by a leading cement producer is a milestone that may encourage broader uptake across the sector.