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326 Posts Member #: 1323 Senior Member |
15th Dec, 2011 at 09:25:21pm
On 15th Dec, 2011 stevieturbo said:
Another thing I find odd. They say fossil fuels are the remains of dead animals, plant life, whatever. How the fuck did they end up miles underground ? Have sea levels risen that much ? And oil reserves found under land....were all these dinosaurs grouped together living under ground ? http://www.kidsgeo.com/geology-for-kids/ |
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326 Posts Member #: 1323 Senior Member |
15th Dec, 2011 at 09:32:00pm
On 15th Dec, 2011 stevieturbo said:
Or they fail to attribute that spike in the last 100 years to the population explosion. The population graph is near identical to the CO2 graph. So what is the cause ? Industry, or people ? I still say people. One doesn't exist without the other |
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 1137 Posts Member #: 1450 Post Whore Near Paris - France |
15th Dec, 2011 at 09:51:56pm
So, what do we do out of tomorrow ?
Rusty by nature
On 23rd Jun, 2008 paul wiginton said:
They said "That sounds rough mate." I said "Cheers it cost me a fortune to make it sound like that!" |
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806 Posts Member #: 989 Post Whore North Yorkshire |
19th Dec, 2011 at 08:57:40pm
Large generating units (500 MW+) regularly shut down in the early hours of the morning, and start back up for the morning peak. This is happening at power plants every day of the year.
On 11th Dec, 2011 stevieturbo said:
I doubt it would make much difference at night. Power stations cannot simply just shut down and restart in the morning. So there needs to be a drain all the time. |
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 11046 Posts Member #: 965 Post Whore Preston On The Brook |
19th Dec, 2011 at 09:56:25pm
the First Hydro pump storage power station at Dinorwig North wales is one of the fastest reacting hydro electric power stations in Europe, with total output capacity going from a standing start to 1300Mw in 12 seconds (5 seconds from a spinning start) and able to maintain this for 5 hours. It is this power station because of its reaction speed that is used to bridge the gap during the break of Coronation Street or the footie match, to keep the grid input steady when everyone at the same time flicks the switch on the kettle! It is one of few power stations in the UK that can black start the National Grid. The only down side is that the whole proces needs to be reversed during off peak hours, to pump the water back up the hill. Nothing is free, but it makes better use of available resources
Edited by Sprocket on 19th Dec, 2011. On 26th Oct, 2004 TurboDave16v said:
Is it A-Series only? I think it should be... So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'... On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........ |
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806 Posts Member #: 989 Post Whore North Yorkshire |
19th Dec, 2011 at 11:33:08pm
Dinorwig is still possibly the finest example of pumped storage anywhere in the world, but it was built at vast cost by a state owned electricity company to protect the grid system. No commercial company would specify anything like it now, as it just would not give a financial return. |
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1137 Posts Member #: 1450 Post Whore Near Paris - France |
20th Dec, 2011 at 08:05:59pm
On 19th Dec, 2011 metroturbo said:
Large generating units (500 MW+) regularly shut down in the early hours of the morning, and start back up for the morning peak. This is happening at power plants every day of the year. Today, the total national grid demand varied from a minimum of 30 GW at 05:00 and peaked at 53 GW at 17:30. This can't all be covered by generating units varying load, so there are units starting up and shutting down right across the day. On 11th Dec, 2011 stevieturbo said: I doubt it would make much difference at night. Power stations cannot simply just shut down and restart in the morning. So there needs to be a drain all the time. I assume those large generating units are not of the nuclear type as it takes so much time to stop the process ? Rusty by nature
On 23rd Jun, 2008 paul wiginton said:
They said "That sounds rough mate." I said "Cheers it cost me a fortune to make it sound like that!" |
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806 Posts Member #: 989 Post Whore North Yorkshire |
21st Dec, 2011 at 12:34:51am
Correct. Nuclear is the most inflexible plant on the grid. Oil fired units normally come on for very short runs because of the high fuel cost, (maybe just a few hours to cover peaks) and charge a fortune to do so. Most of the overnight shutdowns are coal or gas fired units.
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might be able to explain a little better that what I picked up on th etour the other year | Page: |