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If Google had a black screen, taking into account the huge number of times this search engine is used, 750 mega watts/hour of energy per year would be saved. In recognition of this fact, Google has created a black version of its search engine, called Blackle, with the exact same functions as the white version, but with lower energy consumption.
Bookmark it today and pass it along: www.blackle.com
My questions are these: How does this save Watts??? What does "saving Watts" save? I would love to know.
xo
Lana
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Canada
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Re: If you like to be Green, you will like Blackl. 386,498.102 Watt hours SAVED.
Wed, January 2, 2008 - 2:09 PMLana,
Watts are a measure of energy. Like the electricty that comes to your house.
Any part of the screen that is dark will use less energy.
Just like shutting off light bulbs. "little ones"
"750 mega watts/hour of energy per year" has a problem. It should be either per hour or per year, not both.
But the basic idea of saving energy is the same.
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Re: If you like to be Green, you will like Blackl. 386,498.102 Watt hours SAVED.
Thu, January 3, 2008 - 1:37 AMIncorrect. A watt-hour is a unit of energy, whereas a watt is a unit of electrical rate of flow. One watt-hour is the amount of energy you get from one watt of electricity running for one hour.
You cannot "save a watt of electricity", that'd be kind of like "saving a horsepower of gasoline." But you can save a number of watt-hours, even over a time period measuring less than an hour (for high-wattage applications).
Incidentally, Blackle saves nothing if you view it on an LCD monitor, because the backlight stays the same regardless of what's on the screen. In fact, it takes a tiny bit more electricity for an LCD monitor to show black than to show white... -
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Re: If you like to be Green, you will like Blackl. 386,498.102 Watt hours SAVED.
Thu, January 3, 2008 - 7:53 AMI was incorrect. It is (watts) times (a unit of time) that equals a unit of energy. Like watt-seconds or watt-hours etc.
But I'm still going to think that that the black screen will overall save energy.
Would google present an energy saving device that used more energy?
I'm not sure, but it seems like photons comming off the screen would be energy used.
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Re: If you like to be Green, you will like Blackl. 386,498.102 Watt hours SAVED.
Thu, January 3, 2008 - 11:21 AMThe theory behind this idea is actually that your computer uses less power to display a black pixel than a white one. Which, for modern laptops and computers with LCD screens, is not true. For the older CRT monitors this may have had an effect, but they are not nearly as eifficient as the newer screens and displays. Hope that helps.
