Fortum has successfully operated its interim storage facilities for spent nuclear fuel and low-and-intermediate waste at Loviisa Power Plant around 40 years. During this time, we have accumulated considerable amount of expertise both from the design and the operations of the waste storages. Our approach aims to enable safe storage without forgetting cost efficient, easily adaptable and customisable interim storage processes and design. Thanks to our long history of waste storages, we have also gained experience about implementation of plant modifications for interim spent fuel storages. As a specialty, we have experience in high density fuel racks.
Our main offering related to interim storages:
- Feasibility studies e.g. of wet pool storages and dry cask storages
- Conceptual design of radioactive waste storages
- Safety engineering with ADLAS®
- Design of new build interim wet pool spent fuel storage
- Simulations and safety analyses (radiation modelling and shielding calculations, radiation safety analyses, criticality analyses, PRA, thermohydraulical analysis with Apros®
- Construction licensing documentation including PSAR
- Procurement support
Fortum has designed wet storages for its fully-owned Loviisa Nuclear Power Plant and for its co-owned Olkiluoto Nuclear Power Plant in Finland. In addition, Fortum has made conceptual design for interim storage for the Hanhikivi Nuclear Power Plant newbuild project.
The key features and benefits of Fortum’s Spent fuel interim storage concept are introduced below:
- Adapts well to complete nuclear fuel cycle, including final disposal.
- Redundant ultimate heat sink applied. Lessons learned from Fukushima taken into account.
- Air plane crash protection applied.
- No penetrations from fuel pools below the water surface. Reduced risk of leaks.
- Compatibility with final disposal: easy transfer of fuel out from the spent fuel storage
- Cost efficient considering both construction and operating costs
- Easily adaptable to different needs