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Two Of Three Power Systems Out At TEPCO Onagawa Plant

Tyler Durden's picture




 

More bad news for TEPCO. Just out from NHK: Two of three power systems out at TEPCO Onagawa plant. Hopefully this means the plant still has power. More as we see it.

File:Onagawa Nuclear Power Plant.jpg

From Wikipedia:

The Onagawa Nuclear Power Plant is a nuclear power plant located on a 1,730,000 m2 (432 acres) site[1] in Onagawa in the Oshika District and Ishinomaki city, Miyagi Prefecture, Japan. It is managed by the Tohoku Electric Power Company. It was the most quickly constructed nuclear power plant in the world.[citation needed]

The Onagawa-3 unit was used as a prototype for the Higashidori Nuclear Power Plant.[citation needed]

The plant conforms fully to ISO 14001,
a set of international environmental management standards. The plant's
waste heat water leaves 7 degrees Celsius higher than it came in and is
released 10 meters under the surface of the water, in order to reduce
adverse effects on the environment.[citation needed]

All the reactors were constructed by Toshiba.[2]

Unit 1

Since November 11, 2006 this unit has been shut down due to the result of a test.[citation needed]

Unit 2

  • May 2006 it was confirmed that a pipe was leaking due to debris damage.
  • June 7, 2006 Difficulties with pressure control prompted further inspections.
  • July 7, 2006 METI and the Nuclear and Industrial Safety Agency determined that the plant's performance was not satisfactory.[citation needed]

Unit 3

  • July 7, 2006 Due to pipe integrity concerns the reactor was shut down.
  • November 25, 2006 Following repairs the reactor was restarted.
  • March 11, 2011 2011 T?hoku earthquake damaged the turbines after a fire broke out and was shut down.
 

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Thu, 04/07/2011 - 21:40 | 1147947 Element
Element's picture

Ah thanks for that SD, I missed the very beginning of that report and presumed it was a guy from Tepco (morning here).

 

RE No.1, it's status has been very confused for me also, as there was a virtual news-blackout about it until it was revealed early last week that it was going into re-critical states. At which point I presumed there had to be enough energy liberated there there to already have  ablatted through and entered the suppression pool dry-well, but I was not sure that had occurred.

I also was not sure because No.1 was the first reactor they tried to get seawater injection into, so I suspected they maybe arrested the meltdown in time to prevent primary containment rupture.

Thu, 04/07/2011 - 21:54 | 1148014 Stormdancer
Stormdancer's picture

Hours of watching NHK has convinced me they're a government sponsored propaganda outlet that makes PBS look like a paragon of investigative journalism.

Here we are a month in and the report I saw strongly implied that NHK had "dug up" a log of water levels and pressure readings from the 11th .....my BS detector ain't buying it at all.

The skeptic in me is wondering if they're releasing this month old "revelation" to somehow ameliorate something else they know they're going to have to "admit" very soon....

They certainly have a history to date of apparently trying to lessen the impact of negative news by releasing it in dribs and drabs in hopes that we'll read between the lines a bit before the full horror smacks us between the eyes.

Lying bastiges......

Thu, 04/07/2011 - 22:08 | 1148049 Element
Element's picture

I'm with you re PBS, it makes me sick to see well-resourced news agencies with the OPPORTUNITY to tell it like it really is ... and then constantly do not. People who have access to the relevant monkeys to impail them with truth and fact ... then do not.

Tells me all I need to know about that.

And my BS detector likewise reads off-scale here, but sometimes they are just putting the record straight, so we have to give them the benefit of the considerable doubt.

Frankly, the situation is well beyond covering up anything, at this point.

Thu, 04/07/2011 - 21:07 | 1147798 Element
Element's picture

One other thing, and I don't know if this was covered elsewhere in another thread I missed (probably was), but the recent high-res vertical image of No.1 revealed that the explosion on March 13th blew-off the roof's side panels only, but it did NOT blow off the roof itself, or its covering cladding.

Instead, the roof has caved-in on to the floor immediately after the explosion, and is now covering both the reactor service port, and the No.1 SFP pool.

And in that respect, it likewise resembles No.2's parlous condition.

The SFP pools in No.2 and No.1 are both inaccessible, and for all practical intents, you can't flood make-up water into them (or get the spent fuel rods out).

In my worthless OPINION, I suspect they are not going to prevent one of these two spent fuel pools from turning into smoke - and if one does, more will follow.

 

Plan, decide and buy or sell accordingly.

 

(But it goes without saying that above all else, BTFD!)

Fri, 04/08/2011 - 03:57 | 1148989 Yen Cross
Yen Cross's picture

And IMMelt is on the energy team. General Bullshit team!

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