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- Newsgroups: comp.misc
- Path: sparky!uunet!ftpbox!mothost!white!rtsg.mot.com!lido16!wiegand
- From: wiegand@rtsg.mot.com (Robert Wiegand)
- Subject: Re: leaving it on?
- Message-ID: <wiegand.722269924@lido16>
- Sender: news@rtsg.mot.com
- Nntp-Posting-Host: lido16
- Reply-To: motcid!wiegand@uunet.uu.net
- Organization: Motorola Inc., Cellular Infrastructure Group
- References: <1992Nov18.204811.393@news.ysu.edu>
- Date: Fri, 20 Nov 1992 14:32:04 GMT
- Lines: 34
-
- ae277@yfn.ysu.edu (Stewart Rowe) writes:
-
- >Here is an item extracted from the Washington Post which may interest you.
- >
- > The EPA is trying to promote energy-efficient personal computers.
- > A single PC doesn't use much electricity. You can keep
- >your home computer turned on around the clock for a month and barely notice the
- >difference when the electric bill comes around. But with personal computers now
- >humming away in tens of millions of offices and tens of millions of homes, the
- >EPA started counting kilowatts and came up with a striking conclusion.
- > The agency released figures earlier this year suggesting that personal
- >computers account for 5 percent of the total commercial electricity consumption
- >in the United States; with computer use spreading like crazy, the figure was
- >projected to rise to 10 percent by the end of the decade.
-
- [Stuff deleted]
-
- I'm surprised that the number is that high.
-
- I have also heared about another problem PCs cause due to the switched power
- supplies used in them. A switched supply draws a constant power from the
- power input. The power used by a normal resistive load will depend on
- the voltage. During peak power usage the power company will sometimes
- drop the voltage to reduce the amount of power they must produce.
- Nice loads like light-bulbs will reduce their power usage as the voltage
- drops. PCs just suck more current to make up for the voltage drop.
-
- The power company doesn't like PCs. :-)
-
- --
- ------------------------------------------------------------------------------
- Robert Wiegand - Motorola Inc.
- motcid!wiegand@uunet.uu.net uunet!motcid!wiegand
- Disclamer: I didn't do it - I was somewhere else at the time.
-