I believe building your own 'storage' units would be better (letting you draw from these as you need, without monitoring) thus having a continuously slow supply

I believe building your own 'storage' units would be better (letting you draw from these as you need, without monitoring) thus having a continuously slow supply of water,gas, electricity coming from the grid. As long as these storage units don't simply begin to 'top off' when they are drained, the usage could be masked by averaging and predicting demand. very simplified water day 6am - Toilet flush & hand wash 2 Gal 7am - Shower 36 Gal 8am - Breakfast - Coffee, Oatmeal, Dishwashing - 2 Gal 6pm - Dinner & dishwasher - 8 gal 10pm - flush and brush - 2.5 Gal So you'd want a constant 2.1 gallons to be fed in from the street per hour, and you'd need a minimum 40 gallon reserve tank to cover that day.