Questions tagged [zero-energy]

building designed to generate at least as much renewable energy as is consumed. For questions about being [off-grid] use that tag.

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18
votes
3answers
10k views

Storing food without refrigerator during the winter

I am unplugging my refrigerator for the winter months, I live in the northern United States so the temperature is sub freezing most of the time during winter. I have a semi-insulated garage that is ...
12
votes
3answers
289 views

Are there projects that use renewable energy sources to create renewable energy sources?

I recently fantasized about a project that starts from a small solar furnace (small, but can melt steel), and a small solar farm (that control the electronics). Then all the energy is used to build ...
10
votes
2answers
236 views

Planning to build zero energy earth house

I'm playing with the idea of building my own home. I have not picked the location yet but I think I will be good with 1 acre of land. I follow Cody Lundin and like the idea of a earth house. I'm also ...
7
votes
1answer
457 views

Why isn't STES (Seasonal thermal energy storage) more popular?

I don't understand why STES - or more specifically BTES (Borehole thermal energy storage) - isn't more popular. I understand that is has a high implementation cost; excavation, drilling, evacuated ...
-1
votes
1answer
142 views

Cookware thermal isolation [closed]

We like to waste a lot, particularly, in the kitchen we like to wash the hot water down the tubes, literally, right into the sink. We even heat up much more water than we need: 2 leters of water to ...