Seasonal thermal energy storage
This is more for a general discussion than a specific question. I noticed that the “Why solar since net metering is over?” (https://www.greenbuildingadvisor.com/question/why-solar-since-net-metering-is-over) thread was generating a lot of discussion, and it got me thinking about alternatives to batteries for storing energy.
In temperate climates, seasonal thermal storage seems to make a lot of sense on paper. After all, there is usually a surplus of solar in the summer, and a shortage in the winter for space heating. But I haven’t heard much about it on the residential scale. Wikipedia has a good overview of the different technologies: https://en.wikipedia.org/wiki/Seasonal_thermal_energy_storage
Has anyone had any experience with seasonal thermal storage solutions? Are any of these technologies reasonable at the residential scale, or do they have potential to be? Do they have any role at all in the buildings of the future? Or will alternative technologies always be cheaper and more sensible?
For example, aquifer thermal energy storage seems really cool (if situational), but I don’t think it would ever make sense for a home without a geothermal heat pump, which are quite expensive. You’d have to be able to store a lot of energy in order to have a reasonable buyback period. Though I suppose if your house has greenhouse, it could work.
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