Re: Increasing energy costs

On Mar 29, 9:44 am, bill <ford_prefec...@xxxxxxxxxxx> wrote:
On Mar 29, 4:59 am, T. Keating <tkuse...@xxxxxxxxxxx> wrote:



On Sat, 29 Mar 2008 01:06:45 -0700 (PDT), bill

<ford_prefec...@xxxxxxxxxxx> wrote:
My $25000/kg of uranium is the cost/kg at which uranium generated
electricity increases in cost by *1* cent/kwh.

wrong.. more like 77.5 cents per kWh.. not including enrichment,
construction, operational, and decommissioning costs..

math..

Initial fuel load 1GWe .. 100 metric tons of enriched UO2
before enrichment.. ~660 metric tons of U3O8(yellow cake)..
two refuelings, replacing 1/3 of fuel rods every 1.5 years
220 tonns * 2....

660MT + 220MT + 220MT == 1100 MT
1.5 years * 3 == 4.5 years @ 90% duty cycle..

1100 * 1000MT/kg * 25,000$/kg == 2.75e+10 dollars.. (27.5 Billion
dollars)

2.75e+10 / (4.5 years * 365.25 * 24 * .9 * 1,000,000(kWh/hr)) == 0.775
dollars per kWh or 77.5 cents per kWh in U3O8 costs..

except that with refuelling, 96% of the fuel that you remove from the
reactor goes back into the reactor. your numbers are correct for the
once through fuel cycle such as is practiced stupidly in the us, in
france, my number is correct.

In France many such energy related things are correct, but we (aka no-
child-left-behind) are simply not nearly smart enough to know any
better. I believe France is also in charge of creating the first
commercial 3He/Fusion reactor. Go figure.
.. - Brad Guth
.

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