Press releases

12.11.2015 10:23

Posiva is granted construction licence for final disposal facility of spent nuclear fuel

The Finnish Government has today granted a licence to Posiva for the construction of a final disposal facility for spent nuclear fuel. After an extensive and multidisciplinary research and development work Posiva can now proceed to construction of the final disposal facility in Olkiluoto according to the concept it has developed. The final disposal of the spent fuel generated in the Olkiluoto and Loviisa nuclear power plants into the Finnish bedrock is planned to start in the early 2020's.

The Government's favourable decision for Posiva's construction licence application is recognition for the extensive R&D work carried out by Posiva for more than 40 years to develop a safe final disposal solution for spent nuclear fuel. After gaining research results and experience from the underground rock characterisation facility ONKALO, Posiva is now about to move on to the construction of the final disposal facility on the island of Olkiluoto in Eurajoki, Finland.

- The construction licence that has now been granted for our final disposal facility for spent nuclear fuel is a significant achievement for us, our owners and our entire personnel. This pioneering project is important not only for Finland, but also on a global scale. It is the first project entering into construction phase in the whole world. I express my thanks and appreciation to all the experts and partners in Finland and in other countries, who have joined their forces and expertise in this unique and multidisciplinary project, says Posiva's President and CEO, Mr. Janne Mokka.

In the final disposal facility, the spent fuel assemblies will be encapsulated and placed in the bedrock at a depth of about 400 metres for permanent disposal. The facility comprises two parts: the aboveground encapsulation plant for the encapsulation of the spent fuel in the final disposal canisters, and the final repository deep in the bedrock, with tunnels in which the spent fuel will be placed.

Posiva is the leading expert in nuclear waste management and in charge of the final disposal of the spent fuel generated in Finland by its owners, Teollisuuden Voima and Fortum, as well as for research related to final disposal and other expert activities in its sector of operation.

The Finnish Parliament approved the decision-in-principle on the final disposal project in 2001. Posiva submitted the application for the construction licence at the end of 2012. In February 2015, Finnish safety authority STUK issued a statement to the Ministry of Employment and the Economy stating that Posiva's encapsulation plant and final repository for spent nuclear fuel can be built to be safe.

For more information, please contact:
Janne Mokka, President & CEO, Posiva Oy, tel. +358 2 8372 3800.

Return to headlines

Share article:
This website stores cookies on your computer. These cookies are used to improve our website and provide more personalised services to you.


To make this site work properly, we sometimes place small data files called cookies on your device. Most big websites do this too.

1. What are cookies?

A cookie is a small text file that a website saves on your computer or mobile device when you visit the site. It enables the website to remember your actions and preferences (such as login, language, font size and other display preferences) over a period of time, so you don’t have to keep re-entering them whenever you come back to the site or browse from one page to another.

2. How do we use cookies?

A number of our pages use cookies to remember your actions and preferences (such as login, language, font size and other display preferences.)

Also, some videos embedded in our pages use a cookie to anonymously gather statistics on how you got there and what videos you visited.

Enabling these cookies is not strictly necessary for the website to work but it will provide you with a better browsing experience. You can delete or block these cookies, but if you do that some features of this site may not work as intended.

The cookie-related information is not used to identify you personally and the pattern data is fully under our control. These cookies are not used for any purpose other than those described here.

3. How to control cookies

You can control and/or delete cookies as you wish – for details, see You can delete all cookies that are already on your computer and you can set most browsers to prevent them from being placed. If you do this, however, you may have to manually adjust some preferences every time you visit a site and some services and functionalities may not work.