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- Xref: sparky sci.environment:14072 sci.energy:6509
- Newsgroups: sci.environment,sci.energy
- Path: sparky!uunet!pmafire!russ
- From: russ@pmafire.inel.gov (Russ Brown)
- Message-ID: <1992Dec30.193947.17122@pmafire.inel.gov>
- Date: Wed, 30 Dec 92 19:39:47 GMT
- Organization: WINCO
- Subject: Re: Nuclear Power and Climate Change
- Summary:
- References: <1992Dec30.161607.25113@vexcel.com>
- Followup-To:
- Organization: WINCO
- Keywords:
- Lines: 71
-
- In article <1992Dec30.161607.25113@vexcel.com> dean@vexcel.com (Dean Alaska) writes:
- >
- >It seems to be a common conception that nuclear power is a good response
- >to any possible climate change problem. I have challenged this assumption
- >before but I will address in more detail here.
- >
- >The December 1988 issue
- >of _Energy Policy_ contains an article called "Greenhouse warming -
- >Comparative analysis of nuclear and efficiency abatement strategies"
- >by Bill Keepin and Gregory Kats. They make a cost comparison of
- >replacing fossil fuel production with nuclear compared to lowering
- >energy consumption using a strategy of efficiency retrofits.
- >
- >They first make calculations for nuclear power with the goal of
- >replacing all coal electricity generation over the next 40 years.
- >This includes growth in energy demand. Two scenarios are used for
- >these calculations. The first is a high growth scenario taken from
- >a study carried out by the National Academy of Science. The medium
- >growth scenario was calculated by the Dept of Energy. They modify
- >these scenarios by replacing the expected coal component of energy
- >production with nuclear power progressively over the next 40 years.
- >Nuclear power will also be assumed
- >for 1/2 of the non-fossil fuel energy generation. The following
- >are cost assumptions for nuclear power:
- >
- > High scenario Medium Scenario
- >
- >Commissioning rate 1.6 days/GW 2.5 days/GW (until 2025)
- >Avg annual cost (1987 $)
- > capital $227 billion/yr $144 billion/yr
- > total $787 billion/yr $525 billion/yr
- >CO2 emissions in 2025
- > total 8.3Gt/year 5.3 Gt/year
- > relative to 1988 60% increase 1% increase
- >
- >As can be seen, these scenarios require huge investments and an extremely
- >intensive building program for nuclear plants. And CO2 emissions will
- >not even drop due to the increase in use of other fossil fuel energy
- >sources!
- >
- A third comparison might have provided an additional practical
- perspective, namely, what would the CO2 emissions be if we continued
- with something approximating our current mix of energy sources.
-
- Making comparisons based on a growth scenario always seems a little
- shaky. Also, the 1% per year increase in energy efficiency (absolute?)
- sounds great. There is certainly room for improvement. But has anyone
- actually considered what it would take on an aggregated basis, including
- all the usually externalized costs.
-
- The transportation component might be the easiest to do, although by no
- means trivial.
-
- Automobiles (smaller, lighter, lower HP; _NOT_ EV's, for they suffer; hmmmm?
- Trucks
- Buses
- Trains
- Planes
- .
- .
- The weighted fractions would need to be estimated and the effects
- accumulated.
-
- I would vote for energy efficiency, conservation, and prudent
- planning....and replacement of fossil fuel power generation at a rate we
- can achieve. The fossil hydrocarbon resources are finite, and it seems
- a shame to turn them into carbon dioxide and water; they may have better
- uses.
-
- russ
-
-