Lithium batteries are too old! In full ecological transition, the Finnish company Polar Night Energy has theorized and developed a new technology to store energy. It is clear that sand could be the main raw material for our batteries tomorrow.
An environmentally friendly way to store energy
Finland seems to be one step ahead of us. With the latest IPCC reports announcing catastrophic results regarding our environmental transition policy, companies had to come up with solutions for tomorrow's world.
According to BBC journalists who had the chance to tour Polar Night Energy's infrastructure, the installation planned by the company could well be the energy storage of the future, all at a lower cost.
Where we still use rare metals to conserve our energy, the company uses the most available resources to create a complex capable of heating sand in silos to best store the energy.
One of the major concerns of current methods of generating energy is storage. When using wind turbines or solar panels, energy is only available within a certain time. To address this concern, Polar Night Energy proposes to store all of this in large sand silos.
These silos are no less than 7 meters long and keep the sand at a temperature of 500°C† The advantage is clear: no need to use expensive (and expensive) materials to install them all over the world, and without waste.
Currently, the Finnish company can distribute 8 megawatts per hour, but could soon ramp up to 20 gigawatts per hour. To give you an idea: 1 gigawatt per hour can power about 300,000 households.
Which solutions for the world of tomorrow?
As the research progressed on Polar Night Energy's side, the latter was able to install silos in the town of Kankaanpää, in western Finland.
It's easy to imagine that other companies will follow if the Finnish company's research bears fruit.
As a reminder, the report of the IPCC (Intergovernmental Panel on Climate Change) announced on April 4 that the French government should make an effort for the ecological transitionby putting back on the table the elements discussed at the conclusion of the Paris Agreement in 2015.
The use of fossil fuels such as coal, oil and natural gas must be replaced by low-carbon energy sources, such as hydropower, photovoltaics or even wind energy.
However, no law has been considered for our government, only projects have been mentioned in response to this report.
With the growing number of companies working in the field, we imagine, and we hope that our future will make us discover alternative sources of renewable energy, but also of the storage of the latter.
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