[Source](image generated with AI)
[Source](image generated with AI)
Imagine making electricity from water without needing a river or a big dam. That’s what some American startups are working on right now.
A new way to use gravity to store energy even in dry, landlocked places where traditional hydropower doesn’t work are currently being designed.
Here is how it works in simple terms. The system has two reservoirs: one at the top of a hill and one at the bottom. When there is extra energy from wind or solar panels, that power is used to pump water uphill. Later, when people need electricity, the water is released back down. As it flows downhill, it spins turbines and generates electricity on demand.
This idea is not a completely new one ,pumped hydro storage has been around for decades. But what’s exciting here is the “closed-loop” design. It doesn’t depend on natural rivers at all. The water is recycled in a closed system, so there’s no need to flood valleys or harm wildlife habitats.
And the most interesting part is that this can be built anywhere around the world Including deserts or rocky regions, turning unused land into a giant, eco-friendly battery.
The system also has a very outstanding efficiency, it can return over 80% of the energy used to pump the water uphill. That’s similar to, or even better than, many large battery systems but without the toxic chemicals or expensive rare minerals. And unlike traditional batteries, which can wear out after a few thousand cycles, pumped hydro systems can last for many decades with minimal maintenance.
This technology has been considered a breakout by many is can be prove to be very useful in regions has constant power outages,low wind/sunshine.
It means that clean energy doesn’t have to stop when the sun sets or the wind dies down.
At the the exact time when it is needed,stored water can deliver power thereby helping keep the lights on in cities, small towns, or remote communities.
Storing power for when it is needed is actually one of the challenges faced by renewable energy and this innovations can potentially solve the problem.
It also shows that old ideas aren't just old ,the y can also be reinvented in smart ways to help in modern times.
What is your opinion about this ? Share your opinion in the comment section.