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- Path: sparky!uunet!olivea!hal.com!darkstar.UCSC.EDU!darkstar!steinly
- From: steinly@topaz.ucsc.edu (Steinn Sigurdsson)
- Newsgroups: sci.environment
- Subject: Re: Electricity Efficiency
- Message-ID: <STEINLY.92Jul27163017@topaz.ucsc.edu>
- Date: 27 Jul 92 23:30:17 GMT
- References: <JMC.92Jul24101907@SAIL.Stanford.EDU> <1992Jul26.072736.12153@ccu.umanitoba.ca>
- <STEINLY.92Jul26142710@topaz.ucsc.edu>
- <1992Jul27.151824.7138@vexcel.com>
- Distribution: usa
- Organization: Lick Observatory/UCO
- Lines: 48
- NNTP-Posting-Host: topaz.ucsc.edu
- In-reply-to: dean@vexcel.com's message of Mon, 27 Jul 1992 15:18:24 GMT
-
- In article <1992Jul27.151824.7138@vexcel.com> dean@vexcel.com (dean alaska) writes:
-
- In article <STEINLY.92Jul26142710@topaz.ucsc.edu> steinly@topaz.ucsc.edu (Steinn Sigurdsson) writes:
-
- >In article <1992Jul26.072736.12153@ccu.umanitoba.ca> ens@ccu.umanitoba.ca writes:
-
- > But, even though far more coal plants are being built than nuclear
- > plants, the objection is predominantly against nuclear.
-
- > As long as coal plants are being built, there is a strong case
- > for nuclear. When 'efficiency and renewables' start closing
- > down coal plants, the case for nuclear will dwindle.
-
- >There is a strong argument that in fact large old coal plants
- >should be phased out and replaced with new (nuclear) plants.
- >Between concern over greenhouse affects and sulphate emissions,
- >even new coal plants could argued to be undesireable, I'd say
- >any coal plant over 20 years old is a good candidate for shutdown.
-
- Dozens of old coal plants will be shut down due to age in the next
- decade or two. Their capacity must be dealt with before shutting
- down other plants. Renewable energy plants can be constructed in
- extremely short times; retrieved capacity from efficiency is
- available is a short time span, also. Nuclear plants take ten years
- to build. The new "inherently safe" nuclear plants are still under
- study. As a practical matter, efficiency and renewables are the most
- pragmatic approach.
-
- I do not believe order GW renewable energy plants can be constructed
- on less than a decade time scale. Wind and solar still have
- engineering development to do, hydro is saturated in most regions
- and geothermal and wave power is still mostly at the research stage.
-
- Nuclear plants BTW do not take a decade to build, that's how long it
- takes to file the paperwork and legal appeals :-(
-
- I also think you underestimate the time scale for efficiency
- implementation, a lot of energy intensive household and light energy
- loads are "capital" items and are turned over on decade time scales
- (how often do you buy a new fridge?) - heavy industry turnover
- is longer, unless we conveniently blow up existing capacity ;-)
- and transport efficiency is slowly improving but requires (IMHO) a
- technology breakthrough to make much difference.
-
- * Steinn Sigurdsson Lick Observatory *
- * steinly@helios.ucsc.edu "standard disclaimer" *
- * Just because there's a reason *
- * Doesn't mean it's understood Specials, 1979 *
-