Comments on: NREL Publishes Cradle-to-Grave Assessment of Greenhouse Gases from Energy Sources

By: Bob_Wallace

Bob_Wallace — Wed, 12 Nov 2014 19:02:00 +0000

You can edit your comment after posting. Look at the bottom of your comments.

By: RHytonen

RHytonen — Wed, 12 Nov 2014 15:52:00 +0000

That and the ongoing risk of operation. Human operators are fallible, and designers too subject to their employers’ notorious greed, corruption of “regulation,” and cost cutting.

By: RHytonen

RHytonen — Wed, 12 Nov 2014 15:48:00 +0000

(apologies for typos. I’m used to a post edit function and have a BAD kb.)

By: RHytonen

RHytonen — Wed, 12 Nov 2014 15:46:00 +0000

What about immediate and cumulative infrastructure, public health, and employee risk of the lcalized processes throughout the lifecycle? Particularly the risks f buclear nd gas/oil recommend a greatly extended lifecycecle for analysis. The biggest costs are not quatifiable or monetizable. Live near fracking/compression/pipeline/export
operations, or have them impinge near you, and you will see. Work at one, and you will see much more clearly – even though possibly within as much as a decade later.

By: Marcacci Communications

Marcacci Communications — Wed, 21 Nov 2012 14:50:35 +0000

[…] by up to 410 million tons, or 16.4% of current levels. Federal reports have consistently found coal is the dirtiest energy source in […]

By: RockSahay

RockSahay — Sat, 12 May 2012 07:43:00 +0000

can anyone share what is the emission impact on the investment into energy efficiency.

By: lftrsuk

lftrsuk — Thu, 10 May 2012 20:11:00 +0000

Atmospheric pressure plant – there’ll be a fraction of the material used and energy consumed in the manufacture. Do you will make them fare better in the analysis?

By: Bob_Wallace

Bob_Wallace — Thu, 10 May 2012 20:07:00 +0000

It ain’t the fuel cost.

It’s the construction and financing costs.

That’s what prices all nuclear off the table.

By: lftrsuk

lftrsuk — Thu, 10 May 2012 20:05:00 +0000

LCA of PWRs as good as the best renewables. But breeder reactors use about one thirtieth of the fuel of a PWR, for a given power output, so how good will their LCA look?

If you care about minimising environmental impact, then support the global deployment of breeder reactors. Your only decision is: do you prefer LMFBRs or MSBRs: http://lftrsuk.blogspot.co.uk/2012/03/breeder-reactors-it-is-but-will-it-be.html

By: silviomarcacci

silviomarcacci — Thu, 10 May 2012 03:46:00 +0000

Hi Susan,

The final harmonized median coal LCA emissions were 979 g CO2eq/kWh and the maximum as-published emissions were roughly 1,400 grams.

By: Susan Kraemer

Susan Kraemer — Thu, 10 May 2012 00:04:00 +0000

Silvio, I see you plowed through all the assessments at the journal… So what did you get for the final harmonized coal figure ranges? Can you include those for a reference case – to put these figures in perspective? God forbid someone thinks this means “everything pollutes”.

It’s relative.

( I botched a story on this earlier and was well advised by an astute reader (Bill Woods) who caught my error.)