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Kev, I mentioned a plague of locusts a while back but I'm supposing they all drowned in the floods! My money is on an overload of frogs, terrapins even red bellied piranhas clogging up the gubbins to be the next disaster to be overcome?
Kev, as I Understand things the original power was from the generators.then they got grid connection, which I think was cheaper. Generally, that for those with generation capacity, its not to say that you would solely run from the grid once connected up. I once worked in a place that had two submarine diesels to generate electricity ; these could be used to power the place, partially power the place, or even (if demand was low at the site) sell some back to the grid, also in the world of fluctuating price it could some times jus5 be cheaper to run off the grid. Sometimes it not just about a generator being a backup to the grid, there’s all sorts of combinations. However, it might have been (andIreally don’t know) that at Wres they had gone to reliance on the grid, that failed to some extent due to storms ( not uncommon anywhere in the world) and they ran the generators up and did not wrk well. That may have been that if they had not used them for a goodly while and fired them up they did not work correctly(( for number of reasons - wrong buttons pressed, start sequence, load etc etc) or if they were running in parallel with the grid there’s a question of synchronisation together, also you can get issues with power lag where the current is out of phase with the voltage ( where induction or capacitance caused b6 various bits of kit causes problems) or you can get an unbalanced load (by having too much demand on one phase or boosting on one or two phases in generation ) in a three phase system and in that case the neutral which is expected to have next to zero current ( the three phases would cancel each other out in a balanced system) could find itself overloaded by too much current.( gets hot and failure follows) just simply matching the phases from the supply and generator can be tricky In essence, I have no idea why they had problems with the supply at the time, but I have known generators to have problems, I even remember a generator (used as a 440 converter) blowing up because the technician got the start up sequence wrong. There’s lots that can go wrong when running on a two supply system. And don’t mention the tailings lol.
IE, thanks for setting me straight. I knew there were several RNSs about the Iberdola upgrade, but couldn’t find the confirmation that they had done that. Do you know the date of that RNS, please? I’ve also got a memory of MM saying they got a better deal on gas, do they were using gas generators instead of grid power. Why would they have generators problems, if they weren’t using generators? Also, if the grid gives enough power, why didn’t they just use the grid? I’m obviously missing something.
“ Kev, there was a RNS a while back saying they had grid connection and it provided the grid supplier name. It’s in there somewhere if you want to trawl through the RNSs- it’s the sort of thing I remember, given my work experience. If you have grid power and interruptions and simultaneously run up generators there can be synchronisation and other problems, so protocols and systems need to be spot on.”
Yes, they are connected to the grid, but only get about 0.76mw. They depend on the LNG to power the plant. It was cheaper than upgrading the supply and meant they didn’t lose time agreeing local land access for power pylons. They must have continued with the access process since then, as they now plan to upgrade the grid.
All energy prices are going up, but maybe electricity from the grid is now more competitive v LNG.
“ A number of power outages were caused by technical problems with the liquefied natural gas (LNG) generators. This was resolved by the supplier and W Resources will install an additional connection to the grid power supply to mitigate against future power outages. This is expected to be finalised in 2022 and will supply sufficient electricity to power the entire plant.”
Kev, there was a RNS a while back saying they had grid connection and it provided the grid supplier name. It’s in there somewhere if you want to trawl through the RNSs- it’s the sort of thing I remember, given my work experience. If you have grid power and interruptions and simultaneously run up generators there can be synchronisation and other problems, so protocols and systems need to be spot on. On the issue of storms, on the Al Jazeera news I saw that over 250,000 homes had no power due to storms . And also there are flash floods in California, I am amazed that Wres management had not planned for this and taken measures prior to the events that mitigated the damage. Shocking.( note what I did there with the electrical reference). Anyway, issues have and are being dealt with, it’s lessons learned and moving forward that matters.
Safety, they weren’t running off the grid, we’re they? The LNG generators were a cheaper alternative to the grid, although they were talking about arranging access with local landowners to put up some extra wire before they got the generators.
I don’t actually mind apologising if I get it wrong. Facts are that the RNS was disappointing with respect to the September production. The electrical issues are not something I would have expected, and as I used to be a electrical engineer take a view that the back up generator system should have been spot on to cover for the grid. In fairness you don’t sometimes find the weak spots in a back up until there is prolonged running as quick run ups don’t always reveal all issues. With a bit more care it might not have been such an issue perhaps? The rain thing was bad and would seem to me more of an unforeseen event, having been at la Parilla in September it seemed a hot deserty sort of place. So yep dissapointed not to see 100 tons a month which would sign post and validate to the increasing production. In the meantime it is about looking to the future , what has passed is gone.moving on, Ebitda achieved at La Parilla is good, electrical and wet ore issues resolved and still licence news for Regua and Sao Martinho. There appears to be some chunky buys which means some are taking advantage of the reduced SP, anything can happen as is evidenced and change things quickly. Looks like there are some like me that wouldn’t want to be out of these over the weekend. Anyway that should provide a nice word count.