Today’s Solutions: January 21, 2022

The lack of adequate energy storage systems is one of the biggest problems associated with the rise of renewables such as wind and solar in recent years. In an effort to provide a solution, a Dutch startup has invented the Ocean Battery — an energy storage system that operates by the same principles as a hydroelectric dam. 

Developed by Ocean Grazer, the energy storage solution is designed to be installed at the bottom of the sea, near offshore wind turbines or floating solar farms. It consists of three key components: a flexible bladder, concrete reservoirs, and the machinery units containing pumps and turbines.

The concrete reservoir lies on the seabed, holding up to 20 million liters (5.3 million gallons) of fresh water, stored at low pressure. The pumps and turbines connect this reservoir to a flexible bladder on the seabed.

Using excess electricity from the surrounding solar or wind farm, the water from the reservoir is pumped into the bladder. When demand is high, the bladder releases and, aided by the pressure of the seawater above it, squeezes its water back into the reservoir. On its way back, the water spins a set of turbines, generating electricity that’s fed into the grid.

According to the team behind the design, the system boasts an efficiency of between 70 and 80 percent and could run an unlimited number of cycles over its lifetime of 20 years. The system boasts a capacity of 10 MWh and the team claims that it can be further scaled to increase general capacity.

Solutions News Source Print this article
More of Today's Solutions

This solar panel covered building reflects Taiwan’s green energy transition

Most projects designed by the Dutch architecture firm MVRDV tend to leave a lasting impression on whoever lays their eyes on them. The company's upcoming project, Sun Rock, is no exception. Designed for Taiwan’s government-owned ... Read More

Why you shouldn’t peel all your vegetables

In her book, Zero Waste Home, Bea Johnson reveals that she doesn’t own a vegetable peeler. As a result, “food prep is much faster, my compost output (peelings) is considerably reduced, and we benefit from ... Read More

This online sex shop serves people living with and beyond cancer

Being diagnosed with, receiving treatment for, and surviving cancer are all incredibly impactful experiences that affect all areas of a person’s life—including sex. Many people aren’t comfortable bringing up these two sensitive subjects in casual ... Read More

Zebrafish brains reveal new information about our memories

It seems like we're writing about fish a whole lot lately! Last week, we featured an article about goldfish learning to drive. This week, zebrafish, a species studied for their relatively long lifespans, are helping ... Read More

These sustainably powered homes can raise families out of poverty

Finding and sharing positive ways to tackle the world’s challenges is our favorite activity at The Optimist Daily, so it’s no surprise that we are especially excited about BillionBricks and Architecture Brio’s PowerHyde solar homes, ... Read More

5 reasons that secrets sour relationships & how to break the secret-keep...

According to a 2018 study, published in the Personality and Social Psychology Bulletin, people on average keep around 13 secrets at a time, five of which have never been revealed to anyone. It’s worth mentioning ... Read More