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Missing power

 
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woodburner



Joined: 06 Apr 2009
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PostPosted: Sun Jan 15, 2017 1:28 pm    Post subject: Missing power Reply with quote

Something has happened with nuclear, there is about 1.5GW missing compared with a few weeks ago.

http://gridwatch.templar.co.uk/index.php
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adam2
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PostPosted: Sun Jan 15, 2017 2:21 pm    Post subject: Reply with quote

The present output is fairly average, a few weeks ago was unusually good.

Various outages at present, one reactor shut down for repairs to steam turbine overspeed protection, another planned outage extended for boiler tube leaks, and one shut down due to defective boiler feed pump.

One reactor reducing load prior to statutory shutdown for inspection of the core and another running at about one third capacity due to refueling.

Between 6 and 7GW is a fairly typical winter output, much more than that is a most useful bonus but should not be counted on.
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mikepepler
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PostPosted: Mon Jan 16, 2017 10:24 am    Post subject: Reply with quote

Details here:
https://www.edfenergy.com/energy/power-station/daily-statuses
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adam2
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PostPosted: Sat Nov 04, 2017 10:24 am    Post subject: Reply with quote

UK nuclear output is down to about 6.5GW at present.

Three reactors are shut down on a planned basis for statutory inspections and should return to service before the peak demand season.
Two reactors are operating at significantly reduced load for refuelling, and again should return to full load operation before peak demand season.

Of slightly greater concern is the position at Heysham 1.
One reactor has been operating on 7 boilers out of 8 for a couple of years due to a fault.
I now observe that the other reactor is at significantly reduced load due to a boiler tube leak.
Makes one wonder if boiler leaks are going to be a regularly recurring cause of shutdowns or reduced output.
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RenewableCandy



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PostPosted: Sat Dec 09, 2017 7:27 pm    Post subject: Reply with quote

It's below 6 GW now.

Not a good time to take stuff offline.
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adam2
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PostPosted: Sat Dec 09, 2017 8:41 pm    Post subject: Reply with quote

Indeed, we can cope with nuclear output reduced to below 6GW, provided that everything else works OK, with good coal and CCGT availability we should be OK.
But a spate of coal or gas outages during calm weather could be interesting, in windy weather all would be fine due to 6GW or more from wind.
I don't think that we can count on imports from France as they are a bit short.
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adam2
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PostPosted: Sat Dec 09, 2017 8:47 pm    Post subject: Reply with quote

I think that something has broken !
A few minutes ago, nuclear output was only just below 6GW, but now it is down to 5.5GW.

That suggests that we lost one reactor earlier today, and another one in the last few minutes.

Although the status of our nuclear reactors may be viewed on line, link a few posts back, this is NOT real time so wont reveal what has broken until tomorrow.
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adam2
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PostPosted: Thu Mar 08, 2018 7:41 pm    Post subject: Reply with quote

adam2 wrote:
UK nuclear output is down to about 6.5GW at present.

Of slightly greater concern is the position at Heysham 1.
One reactor has been operating on 7 boilers out of 8 for a couple of years due to a fault.
I now observe that the other reactor is at significantly reduced load due to a boiler tube leak.
Makes one wonder if boiler leaks are going to be a regularly recurring cause of shutdowns or reduced output.


Update re above at Heysham 1.
Reactor 1 remains at reduced load on 7 boilers out of 8
Reactor 2 that was at part load due to boiler leaks, was shut down to address the leaks, has been restarted, but is now at significantly reduced load, on 6 boilers out of 8.
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kenneal - lagger
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PostPosted: Fri Mar 09, 2018 12:29 pm    Post subject: Reply with quote

My joints ache with age and it would seem that boilers tube joints do the same!!
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PS_RalphW



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PostPosted: Fri Mar 09, 2018 1:59 pm    Post subject: Reply with quote

Be careful that aching joints are just that, and not a symptom of prostate cancer.
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kenneal - lagger
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PostPosted: Fri Mar 09, 2018 2:44 pm    Post subject: Reply with quote

Didn't know about that one, Ralph. It's my shoulder that aches rather than all the joints. Is it a general ache for PC?
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PS_RalphW



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PostPosted: Fri Mar 09, 2018 6:48 pm    Post subject: Reply with quote

Not sure. Friend of mine went to hospital for a trapped nerve and was dead of a brain tumor in six weeks.

I would say any man over 60 should get a PSA test to be on the safe side. Saved my life.
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kenneal - lagger
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PostPosted: Fri Mar 09, 2018 7:00 pm    Post subject: Reply with quote

I've been trying to get an appointment with an orthopaedic surgeon since last February (over a year ago) and was given one for November. When I turned up they said that I had phoned to cancel. When I denied that they said the surgeon wasn't in that day and that I would have to come back for another appointment. They gave me one for January but that was cancelled until February. That was cancelled because of the high winter load and I'm now due to see another surgeon next week. The original symptoms are gone but I want the results of the neck scan that I had in October for the November appointment! It would also be nice to know why I get pins and needles in my hand.

Isn't the NHS wonderful. I should have called an ambulance last February and I would have been seen a year ago.
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