How are buildings Reykjavik Iceland heated?

Buildings in Reykjavik, Iceland, are primarily heated using geothermal energy, which is abundant in the region due to volcanic activity. The city utilizes a district heating system that distributes hot water sourced from geothermal wells to residential and commercial buildings. This eco-friendly heating method not only reduces reliance on fossil fuels but also provides a sustainable and efficient way to maintain comfortable indoor temperatures throughout the colder months. Additionally, some buildings may also use electric heating or other alternative energy sources as supplementary options.