Every clean energy source comes with a condition attached. Solar stops the moment the sun sets. Wind quits when the air goes still. Even hydropower leans on whatever the season decides to send down the river. The one thing the global grid genuinely lacks is a clean source that simply runs through the night, through a storm, without asking the weather for permission. Since August 2025, a facility tucked inside a desalination plant on the southern coast of Japan has been doing exactly that, pulling electricity out of the gap between fresh water and seawater continuously, around the clock. It is Asia's first osmotic power plant, only the second of its kind running anywhere in the world, and it does not burn a single gram of fuel.
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