​Gridscale is a long duration energy storage solution developed by Stiesdal Storage Technologies in Denmark. The company founder, Henrik Stiesdal invented the modern wind turbine and has decades of experience in the industry. This new modular storage system sits alongside utility scale lithium-ion batteries and provides constant power for up to 7 days.

Photo credit for still images used : Stiesdal Storage Technologies A/S

Rosie visits Stiesdal test facility: https://www.youtube.com/watch?v=72wkuIvUISs&t=654s

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