Andrew
I expect that most of the monitoring will be happening already and with
600 vessels there is already quite a lot of redundancy. We might be paid
for sending local surface observations. Operations will be far enough
from shore to discourage piracy.
However if you want the double the 3 cents I will settle for the 94.
Stephen
Emeritus Professor of Engineering Design. School of Engineering,
University of Edinburgh, Mayfield Road, Edinburgh EH9 3DW, Scotland
s.sal...@ed.ac.uk, Tel +44 (0)131 650 5704, Cell 07795 203 195,
WWW.homepages.ed.ac.uk/shs, YouTube Jamie Taylor Power for Change
On 04/02/2018 16:40, Andrew Lockley wrote:
That ignores monitoring and security costs, and also overlooks the
cost of providing redundancy
On 4 Feb 2018 15:14, "Stephen Salter" <s.sal...@ed.ac.uk
<mailto:s.sal...@ed.ac.uk>> wrote:
Andrew
Allowing for spray vessels being in the wrong place or out of
action I would like a fleet of 600 to hold warming at its present
level. This is based on the assumptions of figure 3 of my Phil.
Trans. 2008 paper and could be adjusted for any others.
At $4 million US per vessel based on 1940 corvettes and actual
component quotes this a capital outlay of $ 2.4 billion.
To pay this off over the lifetime of 25 years and do some
maintenance might cost $240 million a year.
If we divide this by a world population of 7 billion this is 3
cents US a head per year. It will go up with a log term for
higher CO2.
Can I keep the 97 cents change?
Stephen
Emeritus Professor of Engineering Design. School of Engineering,
University of Edinburgh, Mayfield Road, Edinburgh EH9 3DW,
Scotland s.sal...@ed.ac.uk <mailto:s.sal...@ed.ac.uk>, Tel +44
(0)131 650 5704 <tel:+44%20131%20650%205704>, Cell 07795 203 195,
WWW.homepages.ed.ac.uk/shs <http://WWW.homepages.ed.ac.uk/shs>,
YouTube Jamie Taylor Power for Change
On 04/02/2018 14:53, Ronal W. Larson wrote:
Andrew: cc list
For biochar, add the concepts of internal rate of return (IRR)
and recommended analysis time period (30 years? 100 years?) (as
a few of the needed extra parameters, for given types of soil,
climate, species, etc). First cost is not the right parameter.
Ron
On Feb 4, 2018, at 5:28 AM, Andrew Lockley
<andrew.lock...@gmail.com <mailto:andrew.lock...@gmail.com>> wrote:
Hi
I'm designing a survey on attitudes to CE, and I'm trying to
simplify the costs estimates by making it per person per year.
I've put $1 for SRM and $100 for CDR - but it occurs to me that
this is really very complicated. Has anyone done any proper
research on this? I can't find anything...
Typically, SRM is costed on a program basis (bn/yr globally) but
CDR is costed per tonne (and volumes are highly variable).
Issues to roll into this calculation are
* population growth
* future emissions (CDR gets a lot more expensive, if you're
still emitting)
* whether temperature stabilises or reduces - and how fast
* experience/cost curve for each approach
* how much heterogeneity to expect (it's likely impractical to
expect only a single CDR to do everything)
There are probably other factors. This strikes me as something
that's sufficiently useful to be worked up into a paper.
Andrew
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