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  • Low Quality Factslowqualityfacts
    May 19, 2026, 4:57 PM

    Journalist: We climbed inside the world's largest sand battery. Here's what we found.

    Me: Did you find sand?

    Journalist: I hate it when you guess right :(

    ​An aerial view of an industrial thermal energy site surrounded by a green forest, featuring a large, dark blue cylindrical tank and red utility buildings.
​Above the image, an article headline from Interesting Engineering reads: "We climbed inside the world’s largest sand battery. Here’s what we found." A subheadline notes that Polar Night Energy’s sand battery in Pornainen, Finland, survived a worst-case winter.
    💬 5🔄 80⭐ 141

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