Japan Just Switched on Asia’s First Osmotic Power Plant, Which Runs 24/7 on Nothing But Fresh Water and Seawater
A renewable energy source that runs day and night, powered by salt and fresh water.

On a humid morning in Fukuoka, a coastal city in southern Japan, a new kind of power came online. Japan has launched Asia’s first osmotic power plant, which generates electricity by mixing fresh water with salt water.

“It’s a meaningful plan—the start of a plan, perhaps—in our response against climate change,” said Kenji Hirokawa, director of the Seawater Desalination Center, which runs the facility, as per Gizmodo.

Fukuoka’s plant is only the second of its kind worldwide, following one in Denmark that opened in 2023. Japan’s version is larger and marks a step forward for this little-used but promising renewable energy source.

The plant will generate about 880,000 kilowatt hours of electricity per year—enough to help run a nearby desalination facility and supply around 220 homes. That equals the output of two soccer fields of solar panels, but osmotic power keeps running day and night, in any weather.

https://www.zmescience.com/ecology/japan-first-osmotic-power-plantss/