Timeline for How fast do power plants need to respond to demand?
Current License: CC BY-SA 4.0
9 events
| when toggle format | what | by | license | comment | |
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| Nov 18, 2018 at 0:54 | comment | added | τεκ | @kdbanman Don't know unfortunately. It's from this pdf | |
| Nov 17, 2018 at 23:19 | vote | accept | kdbanman | ||
| Nov 17, 2018 at 22:59 | comment | added | kdbanman | That makes sense. And that particular curve/plot you show - does it have a name? I can imagine lots of different profiles to that curve depending on the loading and power systems involved, and I'd like to look up more of them. | |
| Nov 17, 2018 at 20:21 | comment | added | τεκ | @kdbanman Almost. C to B and D onwards are not necessarily different plants, but can be different methods of control at the same plant. For example a steam turbine might have throttle control for C-B (causing boiler pressure to begin to decrease), but increase boiler pressure for D onwards. | |
| Nov 17, 2018 at 19:20 | comment | added | kdbanman | That's extremely helpful. So to put it in terms of your diagram, A to C is handled by grid inertia, C to B is handled by the fastest acting peak load plants like hydro batteries, and from D onwards is handled by the slower acting peak load plants like gas turbines? | |
| Nov 17, 2018 at 18:34 | comment | added | τεκ | @TimWescott Until very recently yes, but with the advent of demand response and grid battery storage there is also "virtual" inertia in the system. | |
| Nov 17, 2018 at 18:29 | comment | added | TimWescott | "So the inertia of the grid..." Note that this is real true mechanical rotating inertia, not an analogy or metaphor. | |
| Nov 17, 2018 at 18:16 | history | edited | τεκ | CC BY-SA 4.0 |
added 553 characters in body
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| Nov 17, 2018 at 18:08 | history | answered | τεκ | CC BY-SA 4.0 |