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Thanks for running the numbers. The important question is how many personal computers are currently switched on at this exact moment? What's a small improvement

by Osmium 12y ago

Thanks for running the numbers. The important question is how many personal computers are currently switched on at this exact moment? What's a small improvement to one person can make a huge difference nationally. Just because there are other devices that use yet more energy still (e.g. kettles, fridges, vacuum cleaners, etc.) doesn't mean there shouldn't be a drive for increased efficiency in all our electric devices where possible (in my personal opinion).

jarek 12y ago
> The important question is how many personal computers are currently switched on at this exact moment? Less than the fridges switched on. Here's a standard fridge Walmart sells for $449: http://www.danby.com/en/US/our_products/refrigeration/dff100a2bsldb http://www.danby.com/en/US/our_products/refrigeration/dff100... The EnergyGuide says it's estimated for 375.6 kWh yearly. That's an average of 42.9 W, including the times it's plugged in but idle. Then keep in mind that a "30 W" computer will use much less than that in idle, where it'll be for 90+% of the time. Including auto-sleep, which Macs are good at, you'll be well below 10 W on average. > doesn't mean there shouldn't be a drive for increased efficiency in all our electric devices where possible (in my personal opinion). Absolutely, but replacing one energy-efficient sub-30 W CPU with another slightly more efficient CPU won't do huge things to the country's energy bill.