Some researchers at MIT have discovered a way to store energy from solar power, which was until now not possible.
The fact that solar energy was not available when the sun doesn't shine, was apparently the only reason why we couldn't completely rely on it yet.
Until now, because a simple setup of neutral pH water with a special catalyst in room-temperature (inspired by photosynthesis - the way plants get their energy from the sun) will enable us to store any surplus power the sun freely gives us. And it's totally carbon-free, which means no more mining for fossil fuels and no more toxic exhausts.
And did you know that the energy of one hour of the sunlight reflected on our planet is enough to provide the entire earth with power for one year? I didn't.