An Extremely Low-Tech Solution To Our Energy Storage Problem

In the past decade, renewable energies have advanced leaps and bounds and dramatically dropped in price. Wind and solar have become scalable, tradable as commodities, and have even outgrown their government subsidies as they become increasingly competitive with fossil fuels. Renewables are ready to take center stage in the urgent fight against climate change and have shown themselves to be capable of displacing fossil fuels.

But there are still some major hurdles in the path towards a completely renewable world, and the biggest of those is energy…