On at the moment, NG largest stock holding... where are heading £11?Shorting is legal but amoral... but so too are markets |
A good day for the utilities - I hold these and SSE. |
From a US site:
Those damn limeys driving up the price of National Grid, ruining our shorts. And when I say "ruining our shorts" I mean it in both senses, having both lost a fortune and, er, pooped myself at today's big rise in London.
I dunno, we saved their asses in two world wars and this is all the thanks we get... |
CPIH for Feb 3.7%, released today.
Just March CPIH to come in then we can get an idea of what the final divi will be, to be announced at the final results in May🤞 |
Fastest finger first lol |
Pogue : re:- post 10032
Thanks, it just flashed up from notification I receive from the IET 👍 |
'Britain’s electricity transmission network was capable of providing enough power to Heathrow Airport to keep it operating despite a fire at a substation that forced it to close for nearly 24 hours last week, National Grid’s CEO has said......' |
Yanks at it again 😂🤷 This should be pushing £12. It’s extremely cheap IMO |
It couldn't have helped that the Heathrow Chief Exec reportedly went to bed Thursday night rather than personally taking charge. I think John P is in the clear. |
John is not the person who would point the finger, I know him reasonably well professionally and having worked with him in the past, he is not the type of person who would purposely off load any blame. He just says; there was sufficient power available from two alternative sub-station feeds. Says it all IMV |
Operational switching takes place in the System Operation Control Room to provide an alternative feed to the airport from alternative Sub-Stations, to meet the demand. However, during this period the UPS should have allowed essential supplies to be maintained and started the GT’s. The Airport also has a biomass power station which could be fired up, but may take too much time, or it may have been on overhaul, who knows, But for such an important piece of infrastructure the GTs should have a sufficient rating to ensure essential supplies are maintained whilst Grid is re-switching. The Airport would also probably have to do some relay switching on site too, which begs the question, have the tech staff been briefed and practiced against such drills.
NG regularly carry out Black Start scenarios, so they should be well versed in knowing what to do but from John Pettigrew's comments I believe the airport failed to take appropriate action on their part |
Its time taken to reboot the systems that did not have a UPS is the question. Why that took so long is what is perplexing a few people I feel. |
I thought it was simply that restarting systems to pick up the backup power supply from substations 2 and 3 would have taken the airport down while they were restarting those systems (based on reports today). |
Presumably there was power outage on the feed to Heathrow and at the same time the backup (or one of them) caught fire; if this is the case strange timing. |
 Pogue,
Nice to know we have people like you, Uty, Pierre etc who understand the issues. BTW for your info, I have over 40 years experience working predominantely in Power System Operations and I am sure you will agree we must recognise the subtle differences between Experience and Competence.
It will all come out in the investigation anyway; what was the actual set up at Heathrow and what were the actions of all intrested parties :- who at Heathrow was on 24 Hr call, who at the new government owned NESO was dealing with the fault, who was the PSM in charge of the Control Room, even the SAP that would have been called to site. All actions are time based, with as you are aware, all calls to NESO are recorded and the IEMS system that the Control Engineer at NESO uses, records everything.
Apart from other issues I am pretty sure that one of the main issues was a failure to plan for Blackout contingencies and resilience planning.
Usually the case though, we take Electricity Supply for granted, how many of us who switch a switch at home takes it for granted until it doesn't work. |
Yes their plan to remedy the situation after the power out was at fault or not implemented correctly it would appear. |
BTW, Obvious as it may be, Uty and I used the abbreviation of UPS, for those that may not know, most critical infrastructure have UPS systems (Uninterruptable Power Supply)to manage the problem and maintain the demand for a short period of time before a more resilient form of main infeed can be re-switched from NG. |
Well I am a professional CEng engineer with over 30 years experience. There is no way in god's green earth a UPS would be built to cover all Heathrow power the size would be massive and the cost prohibitive compared to the risk especially with 2 other substations on back up. Nothing I have ever worked on in large industrial sites has a UPS that covers the entire site only enough to cover essential systems to prevent knock on issues like the plant blowing up or in Heathrow's case planes crashing. |
In my day - albeit a different industry, but the mentality is the same, disaster recovery plans etc are tested periodically - this seems to be an abject failure on all fronts. |
Skinny,
They do, just some switching has to occur, liaison between NG System Ops and the Engineer in Charge at Heathrow failed to occur I believe.
But invariably, whilst this operational Critical switching occurs, UPS systems should have kicked in, which shows a lack of 'resilience investment' by the Heathrow Board of Directors. |
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