The reactor itself has not been replaced. And it is still being paid for, accruing costs.
As I said, even if you included it, it doesn't change the calculation by but one percent and cost is not used in figuring out Capacity Factor, so this is a red herring.
The plants been paid for. Decommissioning rate recovery for Metropolitan Edison and Pennsylvania Electric ceased per PUC Orders on December 31, 2010 and Penn Elec’s final TMI-2 collection for $7.817 million occurred in 2009.
Now it's just waiting to be decommissioned in parallel with TMI 1. TMI-2 has been defueled and decontaminated to the extent the plant is in a safe, inherently stable condition suitable for long-term management. This long-term management condition is termed post-defueling monitored storage, which was approved in 1993. There is no significant dismantlement underway. The current radiological decommissioning cost estimate is $836.9 million. The current amount in the decommissioning trust fund is $576.8 million, as of December 31, 2009.
http://www.nrc.gov/info-finder/decommissioning/power-reactor/three-mile-island-unit-2.html
http://www.efmr.org/files/TMI-2DFIPetition.pdf
Your link does not do that calculation. You did it. And so have others, on this forum and in many other places. And you and they left out thermal solar, every time.
It absolutely does do that calculation.
See page 46
In Exhibit 21 we show the amount of land a CSP power plant would require in order to produce the same amount of annual energy as an equivalent conventional or other renewable energy source. For example, a nuclear plant with a capacity of 1,000 MW is expected to operate at a capacity factor of 85% per year and will thus produce 7,446 GWh of electricity. In order to provide the same amount of energy, a solar power plant would occupy a square of land with sides of 5.2 miles.
So, according to the document that I had previously linked to on Thermal Solar, at 85% capacity factor it would take building CSP plants covering an area of ~10 X 13 miles every year for 20 years in solar conditions equal to the desert Southwest.
http://www.nrel.gov/csp/pdfs/32160.pdf
Now significantly that document I linked to is nearly a decade old, and Solar Thermal is still in it's infancy which is why there isn't a lot of data on actual systems to determine capacity factors, cost per kWh and land/resource use, which is why I don't normally use Solar Thermal as an example. With some of the projects that will come on line in the next few years, we should have this kind of live data five or six years from now, but today the data is simply not that robust and that's because the technology is still evolving and the contribution of CSP for electrical generation, is less than 0.01% globally, with an installed capacity of only about 0.5 GW worldwide (based on 2008 data). A lot of figures you see are somewhat misleading because most Solar Thermal today is still mainly used for heating hot water and swimming pools, so if you are dealing with CSP you have to be sure you extract electricity generation from any general figures given for Solar Thermal.
That is not true. The government guarantees the loans, and also limits the liability. The risk of disaster is not completely - or even largely - borne by the investor.
The loan gaurantees are only to cover delays in getting operational licencing.
The liability damage the reactors can cause themselves are covered by the industry in a pool with a value of ~$10 Billion. So, liability risk up to that amount is covered and so far, that's been more than sufficient. The risk associated with loss of the cost of the plant itself is borne by both the investors and the consumers in the service area.
It is available, to local industry, from a nuclear power plant just a few miles from my front door.
And again you fail to provide DATA showing that the US national grid has significant excess baseload capacity.
Indeed, the massive building of new baseload plants and intermediate/peaking plants we do each year show that simply isn't the case on a national level.
New Baseload Coal Plants Commissioned in 2010 (the most in one year since 1985)
Rodemacher(Brame) (700 MW)
Comanche (850 MW)
Iatan(850 MW)
J K Spruce (820 MW)
Oak Creek-Unit 1 (615 MW)
Oak Grove (879 MW)
Plumb Point (720 MW)
Southwest (300 MW)
Trimble (834 MW)
Willmar (4 MW)
WygenIII (110 MW)
That's in addition to the 3 GWs of coal plants that were added in 2009 and the 4 GWs that are being built this year, or the ~25 GW of Natural Gas fired capacity added since 2008 with 7 more GWs under construction for this year, or the ~20 GW of Wind power added since 2008.
Which over the last 3 years averages to about 18 GW per year of new generation capacity. On average about 17% of new plants replace existing plants, so that leaves about ~15 GW of net new generation capacity per year.
http://www.netl.doe.gov/coal/refshelf/ncp.pdf
The fact is, this much construction of new plants is based on our normal growth of ~2% of electrical demand per year, mainly driven by our growing population so that underlying growth in demand is not likely to stop, but if you add on top of the growth the required capacity to power 10% of our transportation system then we need to generate nearly 20% MORE electricity than we do today, or just a bit under 50% more new capacity per year for the next 20 years than we are already adding.
So, if we are adding ~15 GW of net new capacity per year, then about 50% of that would be ~7 GW a year, and 5 new nukes a year is a bit low but still ~ equal to that, so it would appear my rough calculations are maybe a bit low, but still reasonably accurate as an indication of magnitude of additional capacity needed.
Arthur
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