To store the increasing amount of clean energy from renewable energy sources, we need batteries. Without them, there is a risk that the transition to fossil fuels will be delayed. Stationary thermal batteries or heat batteries are becoming increasingly popular for industrial processes and district heating. In this episode of Transforming Business we look at some simple, natural and cost-effective materials, throwing away energy in the form of heat that can be used when needed.

Chapters:
0:00: The heating is on
0:36: Sand, the new kid on the block
2:45: The fatal flaw of renewables
3:53: The more established players
8:10: Low-carbon heat
9:26: Warning and credit

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