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Hanhikivi 1 -voimalan suunnittelu- ja luvitusaineisto

Fennovoima must demonstrate by means of design and licensing documents that the Hanhikivi 1 project meets the preconditions set by law for granting the license. Illustration by Tomi Sunnarborg

The Hanhikivi 1 nuclear power plant construction license and its more than 50,000 pages

The construction of a nuclear power plant is a project of great magnitude and a long time span. The design and licensing documentation of the Hanhikivi 1 nuclear power plant consists of more than 50,000 pages.

Construction license as required by the Nuclear Energy Act

A construction license is required for the construction of the nuclear power plant. The application process is dictated by the Nuclear Energy Act, and a favorable safety assessment carried out by the Finnish Radiation and Nuclear Safety Authority is a prerequisite for the granting of the license. Fennovoima must demonstrate by means of design and licensing documentation that the project complies with the preconditions set in the Act for being granted the license – in other words, that the power plant is constructed so that it can be operated safely.

The plant supplier is in charge of the design

Fennovoima has purchased the Hanhikivi 1 nuclear power plant as a turnkey delivery. The plant will be delivered by RAOS Project, Rosatom Group’s Finnish subsidiary. The plant supplier is responsible for the design, construction, installation and commissioning of the nuclear power plant. Fennovoima is the license applicant and the operator and responsible for the safety of the power plant.

Safety assessments at the core of the documentation

The design and licensing documentation describe in detail the technology and plant site of the plant, and it also includes the descriptions of the license applicant’s and plant supplier’s respective organizations. A key part of the documentation are the safety assessments, which go over threat scenarios ranging from the tiniest valve malfunctions to an aircraft collision. The assessments help analyze how potential disturbances in the operation of the power plant are addressed safety.

The design and licensing documentation consists of more than 50,000 pages

Power plant meets the Finnish requirements

RAOS Project has the primary role in the production of the power plant’s design and licensing documentation, but the plant supplier and the license applicant work in close cooperation. Fennovoima reviews all documentation and ensures that they can be approved by the regulator. In practice, the license applicant reviews the documentation requirement by requirement and ensures that the power plant meets the Finnish safety requirements.

Safety analysis provides solid evidence

Being granted the construction license and commencing the construction of the nuclear power plant require that the technical design has progressed far enough. This concerns both the basic design of the plant and the safety analysis, consistent with the design, which is the most important set of documents in the license application of the nuclear power plant. The preliminary safety analysis report (PSAR) accounts for 80–90 per cent of all documentation required for the construction license, and it describes the operation and safety features of the plant on a very detailed level.

Safety assessment is conducted by the Finnish Radiation and Nuclear Safety Authority

Each document in the licensing documentation goes to the authority via the license applicant: Fennovoima submits documents in batches to the Finnish Radiation and Nuclear Safety Authority for review. The parties are engaged in an on-going dialog, since the authority provides feedback on the documents, and the plant supplier elaborates the documentation based on this feedback. A favorable safety assessment made by the Finnish Radiation and Nuclear Safety Authority is a prerequisite of the Government granting a construction license for the Hanhikivi 1 nuclear power plant.