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Some googling and napkin math. 1 fridge = 1 kW A fridge is 25 cubic feet, so 40 watts per cubic foot. A Dell E2422H monitor uses 13 watts while powered on. So

by giarc 3y ago

Some googling and napkin math. 1 fridge = 1 kW A fridge is 25 cubic feet, so 40 watts per cubic foot. A Dell E2422H monitor uses 13 watts while powered on. So a box 0.325 cubic feet could power a monitor, or a cube of 8.25" edge length. Assuming it was 100% efficient and endless supply of humid air etc.

importantbrian 3y ago
> and endless supply of humid air etc. Floridians are getting really excited right now.
mojomark 3y ago
I had a 5kW gas powered generator that more than lowered out 3 bedroom 1.5 bath house for when our power would go out - sometimes for several days (1 refrigerator, HVAC unit, microwave, electric washer/dryer, two laptops, 2 large screen TV's, hot water heater - all drawing power intermittently of course, but we never exceeded). It was about the size of a small riding lawn mower. If I could have 5 refrigerator-sized boxes in my backyard powering my house, I would be in.
- jaclaz 3y ago
  >If I could have 5 refrigerator-sized boxes in my backyard powering my house, I would be in. Yep, but that would be 5 billion "cells". How much would a "nail sized" cell cost? If 0.001 $ (1/1000 of a dollar), that would be a nice, round 5 million dollar.
  - giarc 3y ago
    Sure, but the first LCD tv's were $50,000, now you can get one for $100. It won't be $5m forever.
    - jaclaz 3y ago
      Yep, but prototypes of (small, monochrome) LCD screens were created in the '60's, your $50,000 data point would have been probably mid-1980's, and the $100 lcd tv's probably happened in the late 2010's. I wouldn't be surprised (if this humidity device actually works and can be bettered) that working regrigerator sized units will be availably in 2040 and be actually affordable by the 2070's.
  - notjulianjaynes 3y ago
    Unless I misunderstood, the fingernail sized object was just a prototype and the important thing isn't the size of the "cell" but the number of 100nm holes in the material. I wonder if the kind of lithography used for semiconductor manufactur would be a useful way to produce this material?

by giarc 3y ago

importantbrian 3y ago

> and endless supply of humid air etc. Floridians are getting really excited right now.

mojomark 3y ago

I had a 5kW gas powered generator that more than lowered out 3 bedroom 1.5 bath house for when our power would go out - sometimes for several days (1 refrigerator, HVAC unit, microwave, electric washer/dryer, two laptops, 2 large screen TV's, hot water heater - all drawing power intermittently of course, but we never exceeded). It was about the size of a small riding lawn mower. If I could have 5 refrigerator-sized boxes in my backyard powering my house, I would be in.

jaclaz 3y ago
>If I could have 5 refrigerator-sized boxes in my backyard powering my house, I would be in. Yep, but that would be 5 billion "cells". How much would a "nail sized" cell cost? If 0.001 $ (1/1000 of a dollar), that would be a nice, round 5 million dollar.
- giarc 3y ago
  Sure, but the first LCD tv's were $50,000, now you can get one for $100. It won't be $5m forever.
  - jaclaz 3y ago
    Yep, but prototypes of (small, monochrome) LCD screens were created in the '60's, your $50,000 data point would have been probably mid-1980's, and the $100 lcd tv's probably happened in the late 2010's. I wouldn't be surprised (if this humidity device actually works and can be bettered) that working regrigerator sized units will be availably in 2040 and be actually affordable by the 2070's.
- notjulianjaynes 3y ago
  Unless I misunderstood, the fingernail sized object was just a prototype and the important thing isn't the size of the "cell" but the number of 100nm holes in the material. I wonder if the kind of lithography used for semiconductor manufactur would be a useful way to produce this material?