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Zaporizhzhia Nuclear☢️ Power Plant Safety/Security At Risk❗️

DarkNoon

DarkNoon

Intelligence Specialist
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NuclearID68
⚠️ALERT
(Day 10), ZNPP still has no off site/external power. Cooling and safety systems are being maintained by on site diesel/backup generators.

Radiation levels are normal. The risk grows with duration, but there is no current radiological release. IAEA is pressing both sides to restore external power.

As of Oct 3, 2025 (Day 10), ZNPP still has no off site/external power. Cooling and safety systems are being maintained by on site diesel/backup generators.

What’s driving the confusion: The Kyiv Independent piece is accurate on the key point,... ZNPP has been disconnected from the Ukrainian grid since Sept 23!

Some posts/tweets saying “power restored” refer to the separate Chornobyl/‘Chernobyl’ site, which indeed suffered a temporary outage on Oct 1 but was restored after several hours. That is not ZNPP.

Context / risk notes: All six reactors are in cold shutdown, which sharply reduces, but does not eliminate risk. Prolonged total loss of AC power (if generators fail/refueling interrupted) would be EXTREMELY hazardous. This is why IAEA calls the situation unstable and wants grid power restored ASAP.


Sources:

Radiation status at Zaporizhzhia NPP from September 29 to October 3, 2025 – within current standards

energoatom.com.ua energoatom.com.ua

apnews.com

Ukrainian nuclear plant's longest power outage since war began is 'critical' moment

Concerns are growing over Ukraine’s Zaporizhzhia nuclear power plant, which has been without external electricity for over a week.
apnews.com apnews.com

www.world-nuclear-news.org

IAEA talking to both sides as Zaporizhzhia power loss continues

International Atomic Energy Agency Director General Rafael Mariano Grossi has met with the Russian and the Ukrainian sides in recent days to try to get a resumption of external power supplies to Zaporizhzhia Nuclear Power Plant. ;
www.world-nuclear-news.org

kyivindependent.com

'A risky situation' — The critical state of Zaporizhzhia nuclear power plant, explained

The Zaporizhzhia Nuclear Power Plant (ZNPP) remains disconnected from the Ukrainian electricity grid and without external power for the 10th consecutive day, creating an increasingly "risky" situation, experts told the Kyiv Independent. Russian President Vladimir Putin referenced the crisis at...
kyivindependent.com kyivindependent.com

www.theguardian.com

Russia accused of sabotaging last power line into Zaporizhzhia nuclear plant

Satellite images of damaged area show no sign of shelling that Moscow says prevents repair
www.theguardian.com www.theguardian.com

@DEFCON Warning System @RiffRaff @Irag8er @Sentry @Torch
 
From the information that I have, ZNPP is still in LOOP condition.
So there's still no offsite power.

While this would be an emergency in normal circumstances (not the worst type of emergency anyway), in this case as all of the reactors are in cold shutdown, it kinda gives us some "relief".

ZNPP is currently cooling his nuclear side thanks to the emergency diesel generators.
Half of them is kept running while the other half is kept on standby and are alternated constantly to allow maintenance.

This could let the NPP work safely endlessly, until there are spare parts for the generators and more importantly there's fuel coming (on average there's always 15 days worth of fuel).

Now is it a good situation? No...
Why is IAEA so vocal about this? Well because it's a crappy situation, and against all of the best practices and rules that nuclear safety would require.

What can realistically happen if the EDG run out of fuel because for some reasons the 2 parties do not allow refueling?
This can be the chain of events.

1) EDGs run out of fuel
2) The plant has portable backup EDGs to be used, with separate fuel reserves.
3) The backup portable EDGs also run out of fuel (break down).
4) The reactors can be cooled passively, and water can be injected with fire hoses (even if I don't fully remember if this can be done on VVER reactors). The same fate for the pool.
5) Fire hoses fail, or the fire fighters are not let into the nPP.
6) The reactors will keep being cooled by the natural convection. Note this is not ethernal.
7) The spent fuel pool water level will start dropping, it will take weeks to reach a dangerous level if there are no leaks or some missing detail.
8) After serveral days or weeks (no one has enough data to make this estimate), the core of the reactors will begin to uncover. The fuel, since it hasn't been actively used for months, will begun to slowly heat (compared to what would happen otherwise).
9) If the temperature of the fuel in the reactors rises too much, fuel damage can occur. This is not the same event of a meltdown, which is the improperly and publicly used definition of fuel damage. There are various types of fuel damage caused by heat, and many variables to take into account.
10) After weeks the spent fuel will be uncovered and begin to leak into the containment building.

The containment building will keep all the eventual radiation release.

So is it a bad situation that NEEDS to be resolved?
YES.

Is it something that the general public should be concernet at this time?
No.
 
Also...there's one thing that I would like to highlight as I have never done before.
There's been a lot of speculation about one of the parties, wanting to blow up ZNPP...it never happened.
Not because they're hippies, spending time together while smoking cannabis and singing...it's a war between 2 countries.

But for 2 main reaons:
1) The unpredictability of the environmental disaster that would result from some kind of action that blow up the reactors together with their containment buildings...which is something easier to imagine than to realize.
2) The fact that ZNPP is financially worth alone more than the whole region of Ukrain occupied by Russia. Now this is an exageration, but there's consensus in estimating the value of the site somewhere between 13 and 18 billions of USD. Without taking into account the profit from the generation of electricity.

I doubt that this ongoing emergency is going to be left unresolved at the point where the plant gets compromised.
 
Charmender said:
But for 2 main reaons:
1) The unpredictability of the environmental disaster that would result from some kind of action that blow up the reactors together with their containment buildings...which is something easier to imagine than to realize.
2) The fact that ZNPP is financially worth alone more than the whole region of Ukrain occupied by Russia. Now this is an exageration, but there's consensus in estimating the value of the site somewhere between 13 and 18 billions of USD. Without taking into account the profit from the generation of electricity.
Click to expand...
This. ⬆️⬆️⬆️ Thank you. I am too not to worried about this. Really no reason to be as you very well presented.
 
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I read a source a few days ago that the Russians removed the line themselves in preparation to hook the plant up to their own power grid, and are potentially going to restart the reactors once this happens. So I wouldn’t be surprised to see this in the next few days.
 
Snowfall said:
I read a source a few days ago that the Russians removed the line themselves in preparation to hook the plant up to their own power grid, and are potentially going to restart the reactors once this happens. So I wouldn’t be surprised to see this in the next few days.
Click to expand...
If you can find orginal source. 🙏 please post it here if you find it.
 
The first source shows that there is no evidence of explosions near where the line is disconnected suggesting an intentional disconnect.

The second is a memo from Russia to the IAEA which states they have developed a plan to connect the plan to the Russian power grid in the event of a black out.

www.greenpeace.org

The 750 kV power line at Zaporizhzhya Nuclear Power Plant shows no signs of major damage: new satellite investigation by Greenpeace - Грінпіс Україна

There is no evidence of any military strikes in the area surrounding the pylons and network of power lines in this part of Zaporizhzhia nuclear power plant. The investigation by…
www.greenpeace.org www.greenpeace.org

 
This is possible, but I don't see this coming in the shorter term...connecting it to the russian grid, plausible.
Putting the plant back into production before the war ends...unlikely but not impossible.
 
Charmender said:
Also...there's one thing that I would like to highlight as I have never done before.
There's been a lot of speculation about one of the parties, wanting to blow up ZNPP...it never happened.
Not because they're hippies, spending time together while smoking cannabis and singing...it's a war between 2 countries.

But for 2 main reaons:
1) The unpredictability of the environmental disaster that would result from some kind of action that blow up the reactors together with their containment buildings...which is something easier to imagine than to realize.
2) The fact that ZNPP is financially worth alone more than the whole region of Ukrain occupied by Russia. Now this is an exageration, but there's consensus in estimating the value of the site somewhere between 13 and 18 billions of USD. Without taking into account the profit from the generation of electricity.

I doubt that this ongoing emergency is going to be left unresolved at the point where the plant gets compromised.
Click to expand...
That was an outstanding post! Tyvm!
 
DarkNoon said:
Well... guess I was proven extremely wrong. @RiffRaff
Click to expand...
It's not about proving people right or wrong. It's about analyzing information from various sources until we find out what's really going on. That's exactly what these forums are for.
 
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