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Crossy

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Crossy last won the day on July 24 2010

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  1. https://euroweeklynews.com/2025/06/18/spains-blackout-cause-finally-revealed/ The report itself https://d1n1o4zeyfu21r.cloudfront.net/WEB_Incident_ 28A_SpanishPeninsularElectricalSystem_18june25.pdf From here https://www.ree.es/en/operation Interestingly: - "The incident was NOT caused by a lack of system inertia. Rather, it was triggered by a voltage issue and the cascading disconnection of renewable generation plants, as previously indicated. Higher inertia would have only resulted in a slightly slower frequency decline. However, due to the massive generation loss caused by voltage instability, the system would still have been unrecoverable." The TL;DR sequence of events is summarised in the report as follows: - (Note: The generation that must comply with P.O. 7.4 regulates, in a mandatory way, voltage dynamically and independently of the active power they are generating, thus it ensures stable voltages in the network. and RCW = Renewable, Cogeneration, and Waste) 1. Forced oscillation at 0.6 Hz, possibly originating in a photovoltaic power plant in the province of Badajoz,triggers system-altering protocolized actions. Shunt reactors are operated, lines are coupled due to oscillations, and schedules are modified. (N-1) 2. Natural oscillation at 0.2 Hz triggers further system-altering protocolized actions. Shunt reactors are operated, lines are coupled due to oscillations, and schedules are adjusted. (N-2). 3. Generation under P.O. 7.4 does not absorb the required reactive power. (N-3). 4. Variations in RCW generation during active power regulation affect voltage control and many of them don't fulfil their obligations. (N-4). 5. The conventional generation requested after the oscillations was not connected. 6. Generation loss in distribution: P < 1 MW and self-consumption of 435 MW before 12:32:57 (N-5). 7. Inappropriate tripping of a generation transformer in Granada (N-6). 8. Inappropriate tripping of solar thermal generation (Badajoz) and tripping of photovoltaic (Badajoz) withoutpoint-of-interconnection data from transmission network (N-7). 9. Inappropriate tripping of a photovoltaic power plant connected also in the province of Badajoz but in a different transmission substation (N-8). 10. Tripping of three wind farms (Segovia) without point-of-interconnection data from transmission network. 11. Tripping of one wind farm and a PV plant located at the province of Huelva, without point-of-interconnection data from transmission network. 12. Inappropriate tripping of photovoltaic power plant in Seville (N-9). 13. Inappropriate tripping a PV generation located in the province of Cáceres (N-10). 14. Tripping of PV generation connected to a 220 kV substation located in the province of Badajoz, withoutpoint-of-interconnection data from transmission network. 15. Tripping of one CCGT unit located at Valencia (N-11). 16. Load shedding of pumping units and loads due to underfrequency results in increased system voltage. 17. The HVDC link operating in constant power mode continues exporting 1,000 MW to France. 18. Tripping of Nuclear Power Plant. (N-12)
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  2. Elkie Brooks in fine voice, should have been a single!!
  3. It might be worth a trip to the Ampur office in the relevant area. They usually have a bunch of free construction plans on file which have cost estimates. Pick something that looks like what you want, check the date on the drawings, adjust for inflation, and you're gold.
  4. Are there any other clues?? And, of course, what is the purpose of the inquiry?
  5. It certainly looks like a shophouse as was originally noted if it has a living area, so it would be 16, 17 or 18. That said it could also be a commercial building. This would be a commercial building (no living area) which could look like the intial photo.
  6. Yeah a No.16, 17, or 18 would be more accurate then 🙂 Missed those on my first scan through of the document. Makes the construction cost rather cheaper 🙂
  7. I reckon ^^^, No.23 => Commercial Building <23m Looks something like this from outside. Add another floor and you could be approaching No.24 territory.
  8. Why did I immediately think of this scene? Fetching my coat 🙂 Warning - grown up language!!
  9. And then die when you "discover" that the original sparks put the switch in the neutral line or that your light has a "borrowed neutral"! Kill all the power at the main switch.
  10. I believe not at this time, I'm going to give it a go probably next week, maybe try with pink ID which has a Thai ID compliant 13 digit number.
  11. I've had a few "Genuine Fake Lorex" over the years, always the automatic Submariner. if they keep going it's usually the plating that wears off. One memorable incident in Hong Kong. Pete a workmate and long time friend, wandered into the office sporting a Submariner. "That's a nice fake Pete" "It's a bloody real one"
  12. High last night (big tide) nothing to worry about right now.
  13. Mine was yesterday the 12th. One assumes they staggered dates to avoid being over-run with people trying to activate the face thingy.
  14. Sadly, Ackybang hasn't been seen since 2020, Resa since 2018 😞
  15. Some posts that contravene AseanNow Community Standards have been removed. I know it's hot, but let's keep US politics out of unrelated threads please.
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