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California to consider keeping last nuclear plant open

arstechnica.com

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Re: California to consider keeping last nuclear plant open

#4
>Concerns about Diablo Canyon were revived in the wake of the Fukushima disaster, a reactor that was vulnerable due to its location on the coast.

That's hardly a valid concern. "The elevation of the Fukushima site is approximately 20 feet [6m] above sea level, while Diablo Canyon sits on a bluff 85 feet [26m] above sea level." [Wikipedia]

Furthermore, people seem to ignore one of the very favorable attributes of Diablo Canyon - it was designed to be paired with a large pumped storage facility, so that power generated overnight is available for peak use during the day.

"The Helms Pumped Storage project was designed to be used with the Diablo Canyon Nuclear Power Plant, also owned by PG&E, in the 1970s, when Diablo Canyon was being designed and permitted. It is connected to that power plant by a dedicated high-tension power line." [Wikipedia]

Re: California to consider keeping last nuclear plant open

#5

>Concerns about Diablo Canyon were revived in the wake of the Fukushima disaster, a reactor that was vulnerable due to its location on the coast. That's hardly a valid concern. " The elevation of the Fukushima site is approximately 20 feet [6m] above sea level, while Diablo Canyon sits on a bluff 85 feet [26m] above sea level. " [Wikipedia] Furthermore, people seem to ignore one of the very favorable attributes of Di…

The plant was built before they discovered a few fault lines in the area. Fault lines that are extremely close to the reactors.

Re: California to consider keeping last nuclear plant open

#6

>Concerns about Diablo Canyon were revived in the wake of the Fukushima disaster, a reactor that was vulnerable due to its location on the coast. That's hardly a valid concern. " The elevation of the Fukushima site is approximately 20 feet [6m] above sea level, while Diablo Canyon sits on a bluff 85 feet [26m] above sea level. " [Wikipedia] Furthermore, people seem to ignore one of the very favorable attributes of Di…

If your peak is during the day, then you probably want solar, then you can use that to fill the pumped storage for the evenings.

Re: California to consider keeping last nuclear plant open

#7

>Concerns about Diablo Canyon were revived in the wake of the Fukushima disaster, a reactor that was vulnerable due to its location on the coast. That's hardly a valid concern. " The elevation of the Fukushima site is approximately 20 feet [6m] above sea level, while Diablo Canyon sits on a bluff 85 feet [26m] above sea level. " [Wikipedia] Furthermore, people seem to ignore one of the very favorable attributes of Di…

The plant was built before they discovered a few fault lines in the area. Fault lines that are extremely close to the reactors.

I was discussing specifically the risk of tsunami, which is what I believe people were trying to take from Fukushima and apply without modification to Diablo Canyon.

Re: California to consider keeping last nuclear plant open

#8

>Concerns about Diablo Canyon were revived in the wake of the Fukushima disaster, a reactor that was vulnerable due to its location on the coast. That's hardly a valid concern. " The elevation of the Fukushima site is approximately 20 feet [6m] above sea level, while Diablo Canyon sits on a bluff 85 feet [26m] above sea level. " [Wikipedia] Furthermore, people seem to ignore one of the very favorable attributes of Di…

If your peak is during the day, then you probably want solar, then you can use that to fill the pumped storage for the evenings.

Even though it sounds like the original design was to store energy at night for use during the day, it looks like now that solar is such a large part of the grid they've just flipped the schedule around. From the CAISO website, hydro and battery go up around 4pm as solar output starts to go down and they peak around 8pm (fossil fuel generation follow the same trend, roughly). Although I don't know if there's the ability to check generation at a per-site level.
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