K-mit AB has been developing sustainable digital technology since 2014. The company's main focus has been the production of apps, websites and digital systems, but now we are expanding the business with an energy project in the physical world!
Through a grant from the Swedish Energy Agency, we have had the privilege of constructing a prototype of our innovation "Microgrid with sand battery". The project runs from 1 June 2023 - 31 October 2023 in Hässelby, Stockholm.
We would like to highlight the following people in particular for their help, advice and support in the project:
Marcus Nordgren - for muscle power, clever ideas, endless patience and lots of time and commitment
Ingela Andreasson - for support, encouragement, photography and lots of coffee!
Iulian Lobont - for muscle power, energy and smart building solutions
Dan Widegren - for photography, both with drones and with other professional camera equipment
Rodrigo Araya Orostica - for good advice, tangible help and valuable contacts
Jessica Bornkessel - for the loan of a trailer for some of our many transports
Niclas Wickman - for contacts and valuable input as a sounding board
Martin Kemani - for drone footage and engaging conversations
Patrik Heinonen - for muscle power and energy in quantities
Karin Hansson - for diligent work and encouragement when needed
Thomas Fagerström Nyström - for digging jobs and generous sharing of knowledge
Niclas Snellman - for valuable contributions as sounding board
Niclas Bornkessel - for knowledge and commitment, especially in land and construction matters
Stefan Johansson - for good advice, great interest, and valuable knowledge in law
Christoffer Möckelind - for commitment and valuable contributions as a sounding board in programming matters
Maria Olsson - for invaluable help with applications regarding funding of the project
Melker Kindblad - for muscle power and very valuable help with transports
Sustainability focus
Technological development and scalability
Efficiency and performance
In the sand battery, we have the following objectives regarding efficiency and performance:
The end consumer's energy costs will be reduced to the maximum and the sand battery will thereby be worth the investment that the customer makes when installing the sand battery.
Sand battery as part of a plan for crisis management?
We are looking at the possibility of installing sand batteries in connection with schools and other public buildings. Sand batteries would not only save electricity through more efficient heating, but also serve as an important part of emergency preparedness.
The idea came from a visitor who contacted us via the website because he was interested in the sand battery project. In his work, this visitor is responsible for a school that is part of the municipality's crisis preparedness. He had very interesting thoughts about safe supply of electricity and heat for the municipality's residents for a longer period of time and wanted to discuss whether sand batteries could be a strategic investment for future crisis preparedness. We thank you for the idea and spin further on these thoughts to investigate whether strategically placed sand batteries can be part of a future emergency preparedness package.
Sweden faces challenges when it comes to maintaining the energy supply during crises – from natural disasters and extreme weather events to attacks from foreign powers. The sand battery offers a method for a reliable and sustainable energy storage infrastructure.
By using sand, which is a cheap and environmentally friendly raw material, sand batteries can convert and store excess electricity from the sun and wind from sunny summer days to cold winter months. This technology is versatile enough to adapt to a variety of scenarios. Sand batteries can be used in private homes, condominium associations, schools and public buildings, and even in strategic facilities such as shelters.
The sand battery not only offers an energy storage solution, but also makes a sustainable contribution to reducing the carbon footprint. Its flexibility and efficiency position it as a key component in Sweden's crisis preparedness and as an important part in securing our nation's energy supply in all situations.
Sand batteries to save the public electricity grid
Store heat to fight global warming?
We are creating a new method for storing energy in the form of heat during the summer. During the winter, the heat is used to heat water and indoor air.
— Pontus och Susanne Kindblad
The sand battery is developed by K-mit AB
