Maybe we are not doomed after all
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I am glad someone has noticed this. I was beginning to doubt myself. To describe a battery as 100MW is totally meaningless. A Megawatt is a unit of power. A battery stores energy. It needs to be measured in megawatt hours.TheBigBean said:
One of the many things I hate about batteries is quoting size by power. Does it hold enough to produce 100 MW for 5 mins, 1 hour, 1 day etc.focuszing723 said:0 -
Yes I should have qualified that as "not many people..."bompington said:
You've obviously never visited merjsterry said:
Unfortunately, people don't build houses where its windy enough to make turbines worthwhile.laurentian said:The battery thing is interesting.
Why try to build a few "Mega Batteries"? Why not have smaller ones at the point of use, in houses?
I am also of the opinion that household wind turbines, rather than windfarms could work1985 Mercian King of Mercia - work in progress (Hah! Who am I kidding?)
Pinnacle Monzonite
Part of the anti-growth coalition0 -
What, you suggesting that not many people are going to visit me?rjsterry said:
Yes I should have qualified that as "not many people..."bompington said:
You've obviously never visited merjsterry said:
Unfortunately, people don't build houses where its windy enough to make turbines worthwhile.laurentian said:The battery thing is interesting.
Why try to build a few "Mega Batteries"? Why not have smaller ones at the point of use, in houses?
I am also of the opinion that household wind turbines, rather than windfarms could work
Oh, hang on...0 -
I linked the article if you want to learn more.lesfirth said:
I am glad someone has noticed this. I was beginning to doubt myself. To describe a battery as 100MW is totally meaningless. A Megawatt is a unit of power. A battery stores energy. It needs to be measured in megawatt hours.TheBigBean said:
One of the many things I hate about batteries is quoting size by power. Does it hold enough to produce 100 MW for 5 mins, 1 hour, 1 day etc.focuszing723 said:0 -
I posted this before, but it shows possible additional electrical demands between now and 2050.
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Don't worry, remember that practicable fusion has always been 30 years off, so 2050 should be sorted0
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Some 2020 highlights stolen from elsewhere
Ded 25th
First ever coal free Christmas Day electricity production
Dec 18
Highest ever level of wind power (17.2GW)
Aug 26
Highest ever share of wind power (59.9%)
May 30
Highest ever share of solar power (34%)
May 24
Lowest ever carbon intensity (46 gCO2/kWh)
May
Greenest month on record (143 gCO2/kWh)
Apr 20
Highest ever level of solar power (9.7GW)
Apr 10 - Jun 16
Longest ever GB coal-free period
Total coal-free hours: 5,147 hours0 -
They look like good headlines . However
January 18 2021 8.00pm
At this moment in time more than half of our electricity is being generated by burning fossil fuels, including some coal.
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Has anyone else been looking at Gridwatch. co.uk?0
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About half. Rome wasn't built in a day.piker2 said:They look like good headlines . However
January 18 2021 8.00pm
At this moment in time more than half of our electricity is being generated by burning fossil fuels, including some coal.0 -
If only we could harness energy from falling rain. The grid would be surging over the next few days.0
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Yeah, it's not a patch on Springwatch. Haven't seen a single fecking rabbit or chick.lesfirth said:Has anyone else been looking at Gridwatch. co.uk?
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Pross said:
If only we could harness energy from falling rain. The grid would be surging over the next few days.
A solar panel that can generate electricity from falling raindrops has been invented, enabling power to flow even when skies cloud over or the sun has set.
Solar power installation is soaring globally thanks to costs plunging 90% in the past decade, making it the cheapest electricity in many parts of the world. But the power output can plummet under grey skies and researchers are working to squeeze even more electricity from panels.
The new device, demonstrated in a laboratory at Soochow University in China, places two transparent polymer layers on top of a solar photovoltaic (PV) cell. When raindrops fall on to the layers and then roll off, the friction generates a static electricity charge.
“Our device can always generate electricity in any daytime weather,” said Baoquan Sun, at Soochow University. “In addition, this device even provides electricity at night if there is rain.”
Other researchers have recently created similar devices on solar panels, known as triboelectric nanogenerators (Tengs), but the new design is significantly simpler and more efficient as one of the polymer layers acts as the electrode for both the Teng and the solar cell.
The usual thing applies, it doesn't mean much until it can be mass produced at a reasonable price.0 -
There are a few hydro projects, but not many.Pross said:If only we could harness energy from falling rain. The grid would be surging over the next few days.
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NIMBYs tend to object to being flooded. 😉TheBigBean said:
There are a few hydro projects, but not many.Pross said:If only we could harness energy from falling rain. The grid would be surging over the next few days.
The above may be fact, or fiction, I may be serious, I may be jesting.
I am not sure. You have no chance.Veronese68 wrote:PB is the most sensible person on here.0 -
Oh.
Yes the sea is on fire from a ruptured underwater pipeline.1985 Mercian King of Mercia - work in progress (Hah! Who am I kidding?)
Pinnacle Monzonite
Part of the anti-growth coalition0 -
Also spotted somewhere: when we all stop heating our homes and water with gas, what will we do with the tonnes of copper and steel piping?1985 Mercian King of Mercia - work in progress (Hah! Who am I kidding?)
Pinnacle Monzonite
Part of the anti-growth coalition0 -
Make Whisky stills and moonshine.seanoconn - gruagach craic!3
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This is hugely good news.
77% efficacy!1985 Mercian King of Mercia - work in progress (Hah! Who am I kidding?)
Pinnacle Monzonite
Part of the anti-growth coalition0 -
This is not the best thread for this.
I agree that it is good news. However this thread started as a discussion on the use of fossil fuels to generate electricity and the consequent Co2 warming the planet.
The wonderful work the medical profession does will only increase the world population and the demand for even more power generation.0 -
It would be interesting to know how it works given it is a fight against parasites rather than a virus.rjsterry said:This is hugely good news.
77% efficacy!0 -
To keep @lesfirth happy, Vestas have launched a 15MW wind turbine with a 236m diameter.0
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Basic explanation here.TheBigBean said:
It would be interesting to know how it works given it is a fight against parasites rather than a virus.rjsterry said:This is hugely good news.
77% efficacy!
https://www.ox.ac.uk/news/2019-06-13-identification-protective-antibodies-may-be-key-malaria-vaccine1985 Mercian King of Mercia - work in progress (Hah! Who am I kidding?)
Pinnacle Monzonite
Part of the anti-growth coalition0 -
Thanks. Interesting.0
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I assume that's offshore? I'm currently managing a wind turbine scheme and having to sort out the transporting of the blade and tower the 4 or 5 miles from port to site. The vehicles is over 40m long and the blade extends over the rear quite a way so over 3 times the length of a maximum legal size artic. Looking at the vehicle swept paths is scary, there are several sets of traffic lights that have to be removed along with other bits of street furnitureand also plate some pavements and verges so they can be driven over. It must be a pretty stressful job for the people driving / controlling the rear axles!TheBigBean said:To keep @lesfirth happy, Vestas have launched a 15MW wind turbine with a 236m diameter.
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Yes, offshore. That's one of the advantages of offshore. The obvious disadvantage being the transmission cable.0
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There was much the same for the tunnel boring machine on that documentary the other day.Pross said:
I assume that's offshore? I'm currently managing a wind turbine scheme and having to sort out the transporting of the blade and tower the 4 or 5 miles from port to site. The vehicles is over 40m long and the blade extends over the rear quite a way so over 3 times the length of a maximum legal size artic. Looking at the vehicle swept paths is scary, there are several sets of traffic lights that have to be removed along with other bits of street furnitureand also plate some pavements and verges so they can be driven over. It must be a pretty stressful job for the people driving / controlling the rear axles!TheBigBean said:To keep @lesfirth happy, Vestas have launched a 15MW wind turbine with a 236m diameter.
1985 Mercian King of Mercia - work in progress (Hah! Who am I kidding?)
Pinnacle Monzonite
Part of the anti-growth coalition0 -
https://capx.co/what-we-get-wrong-about-going-green/
This is quite good on "going green".
Basically that our instincts on what is green and what isn't are rarely right - and it's rational to be ignorant of that.0 -
It feels like someone who has just found out about life cycle analysis and couldn't wait to try and use it.rick_chasey said:https://capx.co/what-we-get-wrong-about-going-green/
This is quite good on "going green".
Basically that our instincts on what is green and what isn't are rarely right - and it's rational to be ignorant of that.
It's good, but it would be better if they showed the full working on some of the statements, rather than just quote a line from the executive summary.0 -
The confusion is around around the different environmental factors involved. Being green might mean not polluting rivers, but it also means carbon reduction. Sometimes there is a conflict being all these different elements.rick_chasey said:https://capx.co/what-we-get-wrong-about-going-green/
This is quite good on "going green".
Basically that our instincts on what is green and what isn't are rarely right - and it's rational to be ignorant of that.
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