FacilityForsmark

FacilityForsmark, commonly known as Forsmark Nuclear Power Plant, is a nuclear power facility located at Forsmark near Östhammar in Uppsala County, Sweden. It is operated by Vattenfall AB. The plant consists of three boiling water reactors (units 1–3) that are connected to the national grid and provide a substantial portion of Sweden’s electricity supply. The site uses light water reactors and employs standard safety systems consistent with Swedish and international practice.

Construction of the facility began in the late 1970s, with Unit 1 entering commercial service in 1980, followed by Units 2 and 3 in the early to mid-1980s. Over the years the plant has undergone routine safety upgrades and life-extension projects to maintain performance and safety margins.

Safety and regulatory oversight are provided by the Swedish Radiation Safety Authority (SSM) and are aligned with IAEA standards. Forsmark has participated in international safety reviews and modernization programs to ensure compliance with evolving best practices and regulatory requirements.

The plant plays a key role in Sweden’s energy mix and contributes to low-carbon electricity generation. Its continuing operation requires ongoing maintenance, periodic capacity improvements, and long-term planning within Sweden’s framework for nuclear decommissioning and waste management, in accordance with national policies and international guidelines.