Snowmageddon in Texas



Megawatt

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Well, more specifically feedwater pump had issues. It's in the NRC reporting if you want the gory details.
Feedwater pumps 11 & 13 went down at the South TX nuke plant. That caused half of the power to go at that site. The other unit operated at capacity so the plant was still producing power. One unit down is a loss of 1,280 MW or power for 1 million homes. Loosing half of that power plant due to two feedwater pumps was not the issue for the entire state of Texas.

Not trying to argue with you, just contributing on the thread.


Event Number: 55104 report

"At 0526 [CST] on 02/15/2021, Unit 1 automatically tripped due to low steam generator levels. The low steam generator levels were due to loss of Feedwater pumps 11 and 13 (cause unknown).


"Auxiliary Feedwater and Feedwater Isolation actuated as designed. All Control and Shutdown Rods fully inserted. No primary or secondary relief valves opened. There were no electrical problems. Normal operating temperature and pressure (NOT/NOP) is 567 degrees F and 2235 psig.
 

Robisten8

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Feedwater pumps 11 & 13 went down at the South TX nuke plant. That caused half of the power to go at that site. The other unit operated at capacity so the plant was still producing power.
Yes, that's why I said a reactor went down, and not a plant.

One unit down is a loss of 1,280 MW or power for 1 million homes. Loosing half of that power plant due to two feedwater pumps was not the issue for the entire state of Texas.
Yes, the loss of natural gas supply was much more of an impact. (With the caveat that nuclear is basically a rounding error in overall generation capacity in Texas so you wouldn't expect it to have much impact.)

The real bottom line is that if you want reliability you need to build in a lot of redundant capacity, and that costs money. If you optimize for efficiency and quarterly economics, you can't also get reliability.
 

Leftcoast

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Yes, that's why I said a reactor went down, and not a plant.


Yes, the loss of natural gas supply was much more of an impact. (With the caveat that nuclear is basically a rounding error in overall generation capacity in Texas so you wouldn't expect it to have much impact.)

The real bottom line is that if you want reliability you need to build in a lot of redundant capacity, and that costs money. If you optimize for efficiency and quarterly economics, you can't also get reliability.
What would you do comrade?
 
 



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