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Four U.S. power reactors shut & NYC sweats during heat wave
Circuit breaker triggered in natural gas markets to temporarily halt wild futures trading:
UPDATE 2-US natgas futures extend gains on heat, nuke outages
Published: Wednesday, 18 Jul 2012 | 11:24 AM ET
[snip]
REACTORS DOWN
Constellation Nuclear Energy Group's 630-megawatt Nine Mile Point 1 nuclear reactor in New York automatically shut on Tuesday due to high neutron flux -- meaning neutrons are not equally spread around the reactor core. Power traders guessed it could have been a faulty sensor and the unit could be back soon.
[snip]
A unit at Exelon's Limerick nuclear plant in Pennsylvania shut early Wednesday, according to power traders. Officials at the company and the U.S. Nuclear Regulatory Commission could not confirm the Limerick shutdown.
Constellation Nuclear 855-MW took the Unit 1 at the Calvert Cliffs nuclear plant in Maryland offline by early Wednesday due to a small leak in an instrument line. The company said it had already fixed the plant and was ramping up the unit.
North Carolina-based Duke Energy's 846-MW Unit 1 at the Oconee nuclear plant in South Carolina also shut by early Wednesday. Details about the Oconee shutdown were not immediately available to comment.
(Reporting By Scott DiSavino; Editing by Maureen Bavdek)
Circuit breaker triggered in natural gas markets to temporarily halt wild futures trading:
UPDATE 2-US natgas futures extend gains on heat, nuke outages
Wed Jul 18, 2012 3:33pm GMT
[snip]
The CME Group said there was no trading error in the swift price run-up, and that the market functioned properly.
"CME Group Stop Logic was triggered at 10:16 a.m. ET for 10 seconds in our Henry Hub Natural Gas futures contract on Globex," said Chris Grams, a spokesman in Chicago in an email. The "Stop Logic" mechanism sets off a momentary pause in trading, which lasts between 5 and 20 seconds, "to prevent excessive price movements from cascading stop price orders" and allowing the market to regain its equilibrium.
As of 10:41 a.m. EDT (1441 GMT) prices had scaled back to $2.941 per mmBtu, still up about 14 cents, or 5 percent...