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SaltX’s new pilot plant – a step towards a fossil free future

During 2021, SaltX Technology has built a pilot plant at Vattenfall’s premise in Stockholm to optimize and further develop its technology since the pilot installation in Berlin 2019. SaltX has been given the opportunity to build a test plant at Vattenfall’s Heating plant in Bollmora, Stockholm. The pilot plant has been under construction for a year and enables storage of renewable energy with both a charging reactor and a discharging reactor. Both reactors are of a previously known technology that has been adapted to SaltX’s nanocoated salt and enables both economic and technical scalability.

-We must be able to construct large-scale sustainable, long duration energy storage technology, to make the energy sector’s transition to fossil free energy sources possible, says Carl-Johan Linér, CEO at SaltX Technology.

SaltX’s technical development of fossil free energy production started with a pilot plant at Vattenfall´s site in Berlin and continues now in Bollmora. When using existing premises and surrounding support functions in Vattenfall’s buildings makes the projects more resource efficient and circular.

The plant is in the final phase of mechanical and electrical assembly, and thereafter the test program will begin. This installation will move SaltX technology from step five to seven on the TRL (Technology Readiness Level, scale 0 – 9).

-Being able to build large-scale pilot plants is very important to us. There are no shortcuts to proving the energy storage performance. We must build, test, and document the results. A lot can be proven in the lab environment, but this will be the proof of our technology, says Corey Blackman, CTO of SaltX Technology.

-We are following the development of different types of energy storage technologies, for storing both electricity and heat. By hosting SaltX´s large-scale thermochemical energy storage pilot plant at our Heating plant in Bollmora, we hope to contribute to the development of this technology says Katarina Eklund, Vattenfall’s plant manager.

The pilot plant is an important step in SaltX’s growth and both parties are looking into the opportunity of using the Heating plant as a long-term test center to further optimize and prepare for commercialization of the system.

-I am grateful that Vattenfall has given us the opportunity to build our pilot at their facilities and for a constructive continuous dialogue about future opportunities, where both companies can contribute to making the next generation fossil free, concludes Carl-Johan Linér

For further information, please contact:
Carl-Johan Linér (CEO) +46 705-32 08 08
Harald Bauer (CFO) +46 708-10 80 34

About SaltX Technology
SaltX Technology develops and sells a patented energy storage solution based on nanocoated salt. SaltX mission is to develop and offer sustainable technology and solutions that will clearly benefit customers, the climate and society. SaltX Technology's shares are listed on the Nasdaq First North Premier Growth Market. FNCA Sweden AB, +468-528 00 399,, is SaltX Technology’s certified adviser. For more information, visit:

About Vattenfall
Vattenfall is a leading European energy company, which for more than 100 years has electrified industries, supplied energy to people’s homes and modernized our way of living through innovation and cooperation. We now want to make fossil-free living possible within one generation. That's why we are driving the transition to a sustainable energy system through initiatives in renewable production and climate smart energy solutions for our customers. We employ approximately 20,000 people and have operations mainly in Sweden, Germany, the Netherlands, Denmark and the UK. Vattenfall is owned by the Swedish state. For more information:
For more information about Bollmora Heating plant:

Stockholm, 2021-12-20