We have no idea what the environmental consequences of any of these Global Warming solutions might be, IMO. 😀
Running cars on electricity will need staggering amounts of Lithium, for instance. Means huge mining operations and the usual spoil heaps!
Tidal power will severely upset the ecology and flow of rivers, just like dams stop fish swimming upstream. Will wind turbines change rainfall patterns? Who knows?
I just did some investigations of car batteries. Typical one is 100Ah, of which only 50Ah is available for Lead/Acid unless you want to wreck it.
That's not much really. One 12W LED light bulb for 50 hours.
I got my meter out and my Monitor seems to be 9W, my 6-core AMD computer 60-100W. Which is far better than in the old days when my middling gamer computer used to hover around 250W.
Background heat in my apartment seems to be mainly the Fridge, Hot water tank and I suppose my HiFi and Computer. And LED lights.
Running cars on electricity will need staggering amounts of Lithium, for instance. Means huge mining operations and the usual spoil heaps!
Tidal power will severely upset the ecology and flow of rivers, just like dams stop fish swimming upstream. Will wind turbines change rainfall patterns? Who knows?
I just did some investigations of car batteries. Typical one is 100Ah, of which only 50Ah is available for Lead/Acid unless you want to wreck it.
That's not much really. One 12W LED light bulb for 50 hours.
I got my meter out and my Monitor seems to be 9W, my 6-core AMD computer 60-100W. Which is far better than in the old days when my middling gamer computer used to hover around 250W.
Background heat in my apartment seems to be mainly the Fridge, Hot water tank and I suppose my HiFi and Computer. And LED lights.
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I think I got this from Bill Bryson's eminently readable "Short History of Everything":
A Short History of Nearly Everything
There's a lot going on in the long run. Volcanoes, Plate Tectonics, the effect of the Himalaya Mountains on the jet stream. The Atlantic Conveyor ocean current that keeps the UK warm and copacetic. 😕
The energy source for all this activity is unexpected. It's radioactivity heating the molten core of the Earth. And it's only 20 miles down.
A Short History of Nearly Everything
There's a lot going on in the long run. Volcanoes, Plate Tectonics, the effect of the Himalaya Mountains on the jet stream. The Atlantic Conveyor ocean current that keeps the UK warm and copacetic. 😕
The energy source for all this activity is unexpected. It's radioactivity heating the molten core of the Earth. And it's only 20 miles down.
Motor effecieny 50%
Solor effecieny 30%
Battery storage capacity to weight crap%
We aren't going nowhere with these very important component being enefficient. Unless someone discover some wonder material.
Solor effecieny 30%
Battery storage capacity to weight crap%
We aren't going nowhere with these very important component being enefficient. Unless someone discover some wonder material.
Off the top of my head, I think electric motors are about 90% electrically efficient.
But that's not the same thing as a Diesel generator extracting Energy to turn into Electricity. Thermodyamics cuts that down to about 30% efficiency. Waste heat, you see. Solar panels do currently hover around 30%, which is not a problem really, but obviously more efficiency will make them cheaper. Work well in sunny places.
It's all a Shot in the Dark IMO. 😀
Seems to me, the obvious thing to do is to stop generating all these greenhouse gases. And we include Methane and Nitrous Oxide along with Carbon Dioxide. Stop drilling for oil. Stop making throwaway plastic.
How it will pan out is Big Corporations seeking Big solutions, and the ordinary people preferring small local solutions. But the ordinary people don't understand the science, as usual. Oh well.
But that's not the same thing as a Diesel generator extracting Energy to turn into Electricity. Thermodyamics cuts that down to about 30% efficiency. Waste heat, you see. Solar panels do currently hover around 30%, which is not a problem really, but obviously more efficiency will make them cheaper. Work well in sunny places.
It's all a Shot in the Dark IMO. 😀
Seems to me, the obvious thing to do is to stop generating all these greenhouse gases. And we include Methane and Nitrous Oxide along with Carbon Dioxide. Stop drilling for oil. Stop making throwaway plastic.
How it will pan out is Big Corporations seeking Big solutions, and the ordinary people preferring small local solutions. But the ordinary people don't understand the science, as usual. Oh well.
We have to sumon maxwell demon to sort out our heat disipitation wasted heat . Especially audio peoples need him class d isn't enough
Britain being a cold country, I never worry too much about my amplifier warming the room. People in India may feel different. 🙂
Can we trust Governments? NO! Fracking for gas is a filthy polluting technology. I don't make this up. There are rivers in Australia that catch fire, so much Methane bubbles up from the ground, rather than into the extraction pipes! 😀
Can we trust Governments? NO! Fracking for gas is a filthy polluting technology. I don't make this up. There are rivers in Australia that catch fire, so much Methane bubbles up from the ground, rather than into the extraction pipes! 😀
The government in Australia is presently itched by international criticism.
The answer from ScoMo ( Scott Morisson ) the PM, is mostly idle talking about "Clean hydrogen".
I presume they can make it from their coal, that was claimed by Tony Abbot a former PM, the cleanest coal in the world.
BTW, it is better to have methane burning, rather than reaching the high atmosphere.
The answer from ScoMo ( Scott Morisson ) the PM, is mostly idle talking about "Clean hydrogen".
I presume they can make it from their coal, that was claimed by Tony Abbot a former PM, the cleanest coal in the world.
BTW, it is better to have methane burning, rather than reaching the high atmosphere.
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By 2040 we will be producing 1 billion tons of plastic a year. Currently the figure is 220 million a year.
An issue, carefully avoided about renewable energies is energy storage and electric network stability.
So far we do not have a good way to store energy.
At hydro plants, pumping water back to turbine it later is about the only not so bad we have.
The electric network, despite all interconnections one can imagine is reaching the point it cannot be stable with a mix of too much intermittent no so predictable energy.
So far we do not have a good way to store energy.
At hydro plants, pumping water back to turbine it later is about the only not so bad we have.
The electric network, despite all interconnections one can imagine is reaching the point it cannot be stable with a mix of too much intermittent no so predictable energy.
The batteries which allow us to run a planet full of vehicles won't be using rare toxic metals, as that won't provide a sustainable revolution.
Tesla published a design for a battery based on silicon IIRC, and there's the whole supercapacitor thing coming too.
Tesla published a design for a battery based on silicon IIRC, and there's the whole supercapacitor thing coming too.
I don't think people realise the scale of the problem for the Globe.
These are massive quantities of stuff needed. We'll need more copper for wiring. Look at Lithium for batteries.
Cornwall lithium deposits '''globally significant''' - BBC News
Surely, smaller, cleaner fuelled, more efficient cars make more sense?
I have never seen a mine that doesn't (expensively in terms of processes) turn the landscape into powder, which then pollutes groundwater or the sea!
Don't get me onto Oil Shale which is turning the pristine landscape of Northern Canada into an oily puddle! 😀
Small measures for me. I ride my bicycle quite a lot. I seal broken windows in the basement which were making the whole ground floor cold. And have a very healthy fern down there producing life-giving oxygen! Sorted.
These are massive quantities of stuff needed. We'll need more copper for wiring. Look at Lithium for batteries.
Cornwall lithium deposits '''globally significant''' - BBC News
Surely, smaller, cleaner fuelled, more efficient cars make more sense?
I have never seen a mine that doesn't (expensively in terms of processes) turn the landscape into powder, which then pollutes groundwater or the sea!
Don't get me onto Oil Shale which is turning the pristine landscape of Northern Canada into an oily puddle! 😀
Small measures for me. I ride my bicycle quite a lot. I seal broken windows in the basement which were making the whole ground floor cold. And have a very healthy fern down there producing life-giving oxygen! Sorted.
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There are several factors in slowing down the Earth, the Sun and Moon's effects on tides, both water and actual up-and-down movement of the Earth. I doubt extracting energy from tides and wind would increase it enough to measure. If it does, we can measure it.
LeapSecond Home Page
I think the best bet is on biological motor's tissues cultures that feed on glucose . Contracting and expanding on command through neurology. Afteral our bogy is 99% effecient
I thought that the efficiency was much lower than that. I read somewhere that the human on a bicycle was the most efficient form of transportation ever devised. Reaching some 23% efficiency, calculated from food calories consumed and kWh produced at the crank. And that was for a pro racer in the TdF, with the difference between the yellow Jersey and last place finisher being a tenth of a percent. The rest of us struggle to get it into the 20’s at all.
The National Grid must maintain the generated frequency at 50 Hz plus or minus 1%. Failure to do so would mean that many electrical systems would not operate properly, if at all.
Frequency stability becomes more challenging as more and more renewables are added to the generation mix.
The inertia of traditional, large rotating electric generators provides frequency stability, while renewable technologies do not provide that inertia.
Some may remember the UK power cut of August 2019 - blackouts, passengers stranded in trains etc.
This was due to a gas-fired power station and a wind farm "losing load" simultaneously, causing the supply frequency to drop to 48.9 Hz.
This caused automatic systems to kick in to avoid damage to the UK electricity infrastructure.
This was due to a gas-fired power station and a wind farm "losing load" simultaneously, causing the supply frequency to drop to 48.9 Hz.
This caused automatic systems to kick in to avoid damage to the UK electricity infrastructure.
We are going to have more of that.
And plans to switch off specific areas when needed.
There is already the possibility of a lower priced subscription for places that allow to be switched off when needed.
This fits perfectly with the new counters, connected so they can monitor and command remotely. Counters Linky.
And plans to switch off specific areas when needed.
There is already the possibility of a lower priced subscription for places that allow to be switched off when needed.
This fits perfectly with the new counters, connected so they can monitor and command remotely. Counters Linky.
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Because that area is already an (ice) desert.
You may be surprised what a wind turbines park do to the environment. Long story short, birds and a plethora of useful insects (in charge with pollenising plants) leave the wind turbines parks, so over time the vegetation in those areals is dying as well. There also alleged effects about micro-climate changes, but these are still under study.
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