Hacker News new | ask | show | jobs
by grues-dinner 333 days ago
It's in the ballpark if you include all energy source for the family.

100 rooms times, say, 50W (5kW) is 43,000kWh. That's over 10 UK families of 4-5 (4100kWh/yr) for electricity, or 2 if you include gas usage. So for Americans, it's probably must closer to parity.

The fridge does dump heat into the room, so it has a small additional penalty for the aircon in hot countries, but a small, but inefficient compared to a heat-pump, heating offset in cold countries.