| You mean the total energy saved across all devices? The only context in which anybody could give a fig about that is as it relates to total global energy consumption, of which it is an utterly neglible speck. Edit: Had a go at putting some numbers on that for fun, and will partially retract my comment (no I don't, see below). If it takes [1] around 0.01kWh to charge a smartphone, there are [2] around 6 billion smartphones, each is charged once a day and this saves 0.05 (wrong,see below) of that usage, the saving is on the order of 3GWh/day, i.e. around 125MW. Total global energy consumption is [3] around 20 TW, so the saving is around 0.0006% of it, and this is a very generous estimate (chrome isn't all the consumption of a smartphone, not all phones are in active use and charging once a day, etc). That said, in absolute terms it's more than I would have guessed - comparable to the electricity consumption of a small town (no, much less, probably less than the output of a single wind turbine - see below). [1] https://www.quora.com/How-much-in-kwh-does-it-take-to-charge... [2] https://www.statista.com/statistics/330695/number-of-smartph... [3] https://www.theworldcounts.com/stories/current_world_energy_... Edit 2: On reflection, I think this is an big overestimate. I suspect the real saving is on the order of a few MW. Edit 3: As the reply says, I missed a zero, which brings it down to probably on the order of a MW. |
If everyone who is in a position to reduce the energy consumption of their small part significantly does their part then it will add up to a significant effort.