Nokia’s new R&D and manufacturing campus in Oulu, Finland, has “one of the world’s largest CO2 [R744] district heating and cooling plants,” according to the company, with the site producing enough thermal output to heat 20,000 homes.Oulu, with a population of 216,000, experiences temperatures below freezing for the majority of the winter. The CO2 system, designed in collaboration between Nokia and local energy provider Oulun Energia, will deliver approximately 70,000MWh of district heat annually using waste heat generated by the cooling used in the facility’s production process.Read the full story on NaturalRefrigerants.com.

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