Heat and power without burning 

Polar Night Energy’s thermal energy storage powers the change from fossil fuels to renewable energy.

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Key Benefits

Sustainable

The Sand Battery provides low-emission energy, supporting the expansion of solar and wind power without toxic or harmful materials.

Reliable

Our thermal energy storage ensures high security of supply and increases energy self-sufficiency. It can be activated automatically and features a long design life.

Profitable

It can be charged with low-cost grid electricity or self-generated power, and enables participating in grid balancing markets for additional revenue.

Innovative

Polar Night Energy’s solution can be adapted and scaled for various energy systems, utilizing cutting-edge technology to optimize energy production, storage and distribution.

Process Industries

Decarbonize your industrial processes with our innovative Sand Battery technology.

Energy

Optimize your energy production, storage and distribution with our climate-neutral Sand Battery solution.

What is a Sand Battery?

Our Sand Batteries are large-scale, high-temperature thermal energy storage systems that use sand or sand-like materials as their storage medium. They store renewable energy as heat and serve as powerful, high-capacity reservoirs for efficient energy management.