Final disposal

Construction Licence

Construction Licence

Posiva submitted the Construction Licence Application For Final Repository to the Government on 28 December 2012.

The application for a construction licence concerns a complex of two interconnected nuclear facilities, an above-ground encapsulation plant and an underground final repository. The complex also includes facilities intended for the final disposal of nuclear waste created during the operation and decommissioning of the encapsulation plant. The final repository will be built at a depth of 400–450 metres. The repository will consist of a tunnel network, to be built in stages, and the related technical facilities.

The suitability of the Olkiluoto bedrock for the final disposal of nuclear waste has been confirmed with the construction of the underground characterization facility ONKALO.

The fulfilment of the long-term safety requirements is discussed in the safety case prepared for the licence application, submitted to the Radiation and Nuclear Safety Authority for appraisal. According to the safety case, the annual radiation doses incurred as a result of the likely developments within the next ten thousand years would remain considerably below the maximum allowable doses even for the persons with the highest exposure.

Rakentamislupahakemuksen kasittely EN-01

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.