A collaboration between energy company Adven and Billerud’s mill in Gruvön, Sweden has reportedly doubled the amount of residual heat captured and reused in the local system, saving 40 GWh per year.
The companies add that this raises the share of waste heat used in the local district heating system up to 90%. The energy partnership in Grums has been ongoing for more than 20 years. By capturing more excess heat from Billerud Gruvön’s mill, Adven says it can also substantially increase the waste heat supply to Stora Enso’s sawmill.
Adven states that over the past years, around 80% percent of Grum’s district heating has already come from residual heat. Investments in coolers and control technology have enabled the heat to reach 120 degrees Celsius without the need for heat pumps.
Earlier this year Leonhard Kurz implemented ENERGYNEST’s power-to-heat system with thermal storage into its thin-film technology, aiming to provide heat on-demand while lessening its reliance on natural gas and decarbonizing its manufacturing processes. The addition of advanced thermal storage is set to make it a ‘reliable, flexible, and carbon-free’ energy source for industrial processes.
In other news, we recently spoke to Ecohelix ahead of this year’s Sustainability Awards about its wood-based heat seal coating, for use in industries such as industries such as e-commerce and personal care. Said to be fully recyclable and nominated in the Pre-Commercialized Renewables category, it offers a plastic-free alternative with ‘excellent barrier properties and full recyclability’.
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