Local users. In Windows, a local user is one whose username and encrypted password are stored on the computer itself. When you log in as a local user, the computer checks its own list of users and its own password file to see if you are allowed to log into the computer.
Energy-Efficient Models. An energy-efficient large freezer with more than 25 cubic feet will use about 956 kilowatt-hours per year, according to EnergyStar.gov. That equates to about $10 a month. When you reduce the size of your freezer, your costs go down. Standard freezer sizes run between 19 cubic feet and 22 cubic feet. Monthly costs for these units average about $67 per year or a little over $5 a month.
Total: $1,440. New fridge (Energy Star). Initial cost: $674. 5 years of electricity to operate it: $450. Total: $1,124. When shopping for a new fridge, keep in mind that top and bottom freezer models use 10 to 25 percent less electricity than side-by-side models (energystar.gov).