Wind and solar are cheaper than thought, admits UK government

Re:Wind and solar are cheaper than thought, admits UK govern... by hinkley on Thursday August 27, 2020 @04:02PM (#24297989)

How long does it take for a coal plant to ramp up or down? I wonder how much battery buffer you'd need to have the plant work on a pure control theory basis instead of long term forecasting?

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Re:Wind and solar are cheaper than thought, admits UK govern... by dpierce9 on Thursday August 27, 2020 @04:15PM (#24298143)

Different plants have different ramps depending on where they are in their output curve, how hot they (or various parts) are, and how their operators want to run them (max ramp is generally higher than economic ramp) but, while it isn’t my business to know this stuff anymore, IIRC it is 2-5 MW/min for coal. This is ignoring the control loop.

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Re:Wind and solar are cheaper than thought, admits UK govern... by etimberg on Thursday August 27, 2020 @08:08PM (#24300099)

Some answers to that here: https://www.quora.com/Whats-the-typical-ramp-rate-i-e-MW-s-f...

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