Helsinki's energy company, Helen, is navigating its first winter without coal amidst unusually severe and prolonged cold temperatures. Juhani Aaltonen, who oversees the clean transition at Helen, reports that despite these challenges, the company has managed to provide sufficient heating for its customers, signaling a successful transition away from the decades-long reliance on coal. The change was largely motivated by the need to reduce climate emissions, leading to the closure of the Hanasaari coal plant in 2023.

The closure of coal facilities is aimed at ensuring the simultaneous operation of new heating technologies required to meet the city's energy demands, especially in the central urban areas that previously relied heavily on coal. Consequently, last year saw the shutdown of the Salmisaaren coal power plant, which received a one-year extension before closing. The transition is not just a technical upgrade; it reflects Helsinki's broader commitment to environmental sustainability and public health.

One of the most significant outcomes of Helsinki's transition from coal has been the improvement in air quality. Last spring, emissions from burning coal resulted in spikes of sulfur dioxide in the air, which negatively impacted residents' health and air quality. However, this winter, such pollutants have notably decreased, showcasing the potential public health benefits of transitioning to cleaner sources of energy. The city’s proactive steps in managing its energy portfolio may serve as a model for other urban areas facing similar environmental challenges.