Heating Buildings With Solar Energy Stored in Sand
Cars That Think
JANUARY 18, 2023
When you ask people about cleaner energy, they think of electricity,” says Tommi Eronen, CEO of Polar Night Energy. The system uses electricity to heat air, which is then circulated through an exchanger that heats water and distributes it to multiple buildings in the city’s Hiedanranta district (Figure 2). Eronen says, laughing.
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