Nagra since 2011


Start of the seismic campaign in the regions Jura Ost and North of Lägern.

These investigations will improve the understanding of the underground geological environment and will provide input for the provisional safety analyses to be carried out in Stage 2 of the Sectoral Plan process.The Federal Council reaches its decision on the result of Stage 1: it approves the siting regions proposed by Nagra and incorporates them definitively into the Sectoral Plan.


Nagra announces its proposals for potential siting areas for locating the repository surface facilities at a media conference held by the Swiss Federal Office of Energy (SFOE) in January. These proposals serve as the basis for discussions within the framework of regional participation.

The 2011/2012 seismic campaign is completed in March in Neuhausen in the Südranden siting region. Seismic profiles were also recorded in the siting regions Nördlich Lägern, Jura Ost and Jura-Südfuss.

In April, Nagra opens its interactive TIME RIDE exhibition in Zürich railway station. 

Zwischenlager Würenlingen AG (ZWILAG interim storage facility) becomes a member of the Nagra cooperative in June.

In October, an article appears in the SonntagsZeitung newspaper suggesting that the decision on the narrowing-down of potential repository sites had already been made by Nagra. In response, Nagra verifies that no prior decision on repository sites has been made. Investigations carried out in December by the Federal Department of the Environment, Transport, Energy and Communications (DETEC) support this statement and confirm that the Sectoral Plan process is being implemented correctly.


During the year, Nagra draws up a code of conduct with the active participation of all its employees.

In August, the Federal Council formally approves the waste management programme for radioactive waste submitted by Nagra in 2008.

Pankraz Freitag, Member of the Council of States and President of Nagra’s Board of Directors, passes away unexpectedly at the beginning of October. 

Working together with the regional conferences, by the end of the year Nagra had identified a siting area for the surface facility in each of the siting regions Jura Ost, Jura-Südfuss, Südranden and Wellenberg and completed the associated planning studies. 


In April, the Swiss Federal Office of Energy (SFOE) announces the revised time plan for the Sectoral Plan for Deep Geological Repositories extending from site selection to start of operation of the repositories.

Following close collaboration with the regional conferences in the respective siting regions, Nagra designates two siting areas for a surface facility in each of the siting regions Zürich Nordost and Nördlich Lägern and presents the associated planning studies in May.

Corina Eichenberger, Member of the National Council, is elected as the new President of Nagra’s Board of Directors in June.

The Swiss Federal Nuclear Safety Inspectorate (ENSI) confirms at the end of August that Nagra has a sufficient geological understanding of the siting regions to fulfil the 41 requirements formulated by ENSI in Stage 1 of the Sectoral Plan process and can therefore proceed with the safety-based comparison of the siting regions.


Nagra’s siting proposals are announced at a media conference hosted by the Swiss Federal Office of Energy (SFOE): The siting regions Zürich Nordost and Jura Ost will be investigated further in Stage 3 of the Sectoral Plan process. The regions Südranden, Nördlich Lägern, Jura-Südfuss and Wellenberg are placed in reserve. The proposals are the result of the safety-based comparison of the siting regions carried out by Nagra according to the requirements specified by the Swiss Federal Nuclear Safety Inspectorate (ENSI).

The «Full-Scale Emplacement Experiment» in the Mont Terri Rock Laboratory is sealed. The aim is to investigate the effects of heat on the bentonite backfill material and the surrounding Opalinus Clay.

18 years after the start of the «Full-Scale Engineered Barriers Experiment (FEBEX)», the last test container is excavated by scientists at Nagra’s Grimsel Test Site. FEBEX was a 1:1-scale demonstration experiment on emplacement of high-level waste.

At a media conference held on 9th September by the SFOE, ENSI explains that Nagra is required to submit additional technical documentation supporting its siting proposals for Stage 3 of the Sectoral Plan for Deep Geological Repositories.

Seismic measurements in the potential siting region Jura Ost begin in early October in the Mandach-Villigen area.

Following an initial review of the documentation submitted in support of the siting proposals, the Swiss Federal Nuclear Safety Inspectorate (ENSI) requested Nagra to provide additional information relating to the indicator „Depth with respect to engineering feasibility“. The request was announced on 9th September and ENSI provided further details in November 2015.

Nagra starts planning an exploration concept for the Nördlich Lägern siting region from November 2015.