Why a city in Sweden filled these caves with almost boiling water
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Somewhere below the Swedish city of Västerås, there's a big man-made cave. During the Cold War, it was used to store oil. But the local energy company decided to clean it, pump it full of water and heat it up. Here's why they did that.
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Somewhere below the Swedish city of Västerås, there's a big man-made cave. During the Cold War, it was used to store oil. But the local energy company decided to clean it, pump it full of water and heat it up. Here's why they did that.
Delicious cave soup.
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Somewhere below the Swedish city of Västerås, there's a big man-made cave. During the Cold War, it was used to store oil. But the local energy company decided to clean it, pump it full of water and heat it up. Here's why they did that.
District heating.
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System shared this topic on