Everyone’s familiar with the need for renewable energy sources as a replacement for the fossil fuels that are still in heavy circulation. But energy production is about more than just producing the energy you need right now.
Alongside fresh sources of energy production, innovative approaches to energy storage are also required — to keep generating energy even when it’s nighttime (and the solar panels are therefore not working) or it’s not blowing a gale (and therefore powering the wind turbines). The most well-known energy storage system is, of course, a battery.
Nonetheless, there are some other fascinating solutions that are being explored and, in some cases, widely used around the world. Here are five of the most innovative. You’ll almost certainly be hearing a lot more about them in the months, years, and decades to come.
Harvesting the power of gravity
The idea of storing energy through gravity sounds, well,