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Author Topic: Coal  (Read 283 times)
dan_b
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« on: June 19, 2017, 01:05:05 PM »

Interesting to see Coal at 2GW today - loads coming from solar, but almost no wind...
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stannn
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« Reply #1 on: June 19, 2017, 04:14:02 PM »

I guess that, in this unusually stifling weather, there is a lot of demand from cooling systems.
Stan
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pdf27
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« Reply #2 on: June 19, 2017, 04:24:50 PM »

Probably - gridwatch had the peak demand at 40GW today, which a quick glance at their graphs suggests we haven't seen since February. Gas is still well below the peak though, which is slightly odd - have the Coal/Gas price ratios shifted again, or is there maybe some gas stations on outage?
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smegal
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« Reply #3 on: June 19, 2017, 04:52:47 PM »

Probably - gridwatch had the peak demand at 40GW today, which a quick glance at their graphs suggests we haven't seen since February. Gas is still well below the peak though, which is slightly odd - have the Coal/Gas price ratios shifted again, or is there maybe some gas stations on outage?

It looks like there may be some biomass stations on outage too.



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Tinbum
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« Reply #4 on: June 19, 2017, 05:04:34 PM »



It looks like there may be some biomass stations on outage too.


I'd noticed biomass was down a bit and that there hasn't been quite so much 'steam' out of the cooling towers of Drax the last few days.

As an aside, last year, I needed a skip to get rid of some asbestos sheeting but was told they were all tied up at Drax for 6 months. Apparently each year they remove the asbestos for two cooling towers.  In the end they dropped a skip off on a Friday on the way back from the tip and collected it Monday morning. I've seen a few of those skips being moved recently and followed one to Drax the other day.
« Last Edit: June 19, 2017, 06:01:29 PM by Tinbum » Logged

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M
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« Reply #5 on: June 19, 2017, 05:51:08 PM »

Nice spot on the biomass, I'd missed that. That would have balanced out half or more of that coal.

Won't be much coal left if Drax converts it's last 3 boilers to gas.  fingers crossed!
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renewablejohn
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« Reply #6 on: June 21, 2017, 11:07:03 PM »

What is going on at Drax.  Went passed today and have never seen so many cooling towers in operation. 
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Philip R
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« Reply #7 on: June 22, 2017, 12:54:51 AM »

I went there a few years ago when it was coal only. Five of the six units running , all 12 cooling towers in operation.

Cooling tower "steaming" is not always a good approximation as to how hard the plant is running.

Philip R
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pdf27
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« Reply #8 on: June 22, 2017, 07:40:41 AM »

What is going on at Drax.  Went passed today and have never seen so many cooling towers in operation.

Likely to be weather related: from memory all of the towers are on the same water circuit, and in hot/humid weather the condenser temperature will naturally climb - making it worth running more towers to bring it down again.
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