How much will decommissioning San Onofre cost? I've seen two estimates
http://www.democraticunderground.com/1014508904
Whoops! Edison clarifies nuclear cleanup costs
Source: Orange County Register
Southern California Edison goofed a bit when it told the world that it would cost $3 billion to mothball the San Onofre Nuclear Generating Station last week.
Decommissioning costs are actually projected to be $4.1 billion, as we at The Watchdog originally reported.
Edison has $2.7 billion stashed away, it said last week, so the clean-up was 90 percent funded. We did some back-of-the-napkin math (using the $4.1 billion figure) and said it sure ...
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Read more:
http://www.ocregister.com/taxdollars/billion-512655-edison-percent.html
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Unfortunately the rest is behind a paywall.
I found another article with the same two estimates:
http://www.sanclementetimes.com/blog/2013/06/12/nuclear-no-more/
Nuclear No More
EYE ON SC, News Headlines | June 12, 2013 by Staff | 2 Comments
<snip>
The company reportedly has a $2.7 billion trust fund, after taxes, to handle costs associated with the closure. According to Craver, the fund, containing money collected from ratepayers each time they pay their energy bill, could cover 90 percent of Edisons $3 billion in expected retiring expenses.
But according to Edison officials, total expenditures are anticipated at $4.1 billion, leaving more than $1 billion in funding unaccounted for.
<snip>
2.7 / 4.1 = 0.66 = 66%
So instead of having 90% of the costs in a trust fund,
they only have about 2/3 of the costs in a trust fund.