What still works when the grid, the mains or the weekly delivery does not. These are chosen for what they do on the bad day, not on the average one.
Rainwater harvesting and storage: Gutters and downpipes that lead rain from the roof into a storage tank. A simple diverter sends the first, dirtiest water of each shower away before the tank fi — Why this one: A supply that does not depend on anyone else’s pumps.
Rocket stove cooker: A small cooking stove with an insulated L-shaped chimney that draws air through a very hot fire. The fire burns sticks and twigs so completely that little smoke — Why this one: Cooks without electricity and burns what you can gather nearby.
Insulated operable shutters: Removable or foldable insulated panels over glazing at night, cutting heat loss when the sun isn't providing gain anyway. — Why this one: Holds heat in through a cold night with nothing running.
Composting toilet (dry): A toilet with no flush: a scoop of sawdust or similar material goes in after each use, and the contents are later composted. It uses no water at all and produce — Why this one: Keeps working when the water is off, which a flush toilet does not.
This is a short list, not the whole catalogue
All the solutions for your home are in the catalogue, organized by need.