geothermal solar thermal storage

te:

und, and

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ill be at an elevated temperature and require insulation. It may not need

ient it won't do you much good for heating.

l that

ase

lation

primary batteries, i.e. non-rechargeable. Otherwise the storage is either based on using specific heat to store energy at increasing temperatures or phase change to store heat at a given temperature that is higher than the temperature required.

energy.

n something that will always do the job. It might cost a lot more as well. You won't even be able to save on installing the gas backup since you wil l still need that for breakdowns. Then there is the issue of the gas compa ny not being happy with a customer how uses gas once in 10 years.

eating needs routinely and saving a lot of money on overdesign. I wish the y had used electric as backup. Eventually that will be carbon free which i s where we need to be.

The only other thing I can think of is cooking. That doesn't really use so much energy.

This is an interesting project. They are paying an average of $60 a month I believe they said. That is less than I pay when my winter heating bill i s averaged and what I expect am paying for hot water. But the cost savings is not all that much I don't think. They still need A/C which this system doesn't provide, so once you factor that cost into the equation I expect t he cost difference is fairly small... if they are even considering the cost of installation which seems to have been paid for by grants.