Not energy efficient how? What happens to the energy they "waste"?
The bulb is 50W to power and provide the light. The equivalent LED bulb is perhaps 4 or 5W for the same light. So - a tenth of the input power for the same light. Different technology and the halogen bulb turns more of the electriciy into heat rather than light.
bikes are horrible little polluting things as well if you look at a full LCA
The mining and refining of metals
the manufacturing of all our lovely shiny things,
the use of high gloss voc paints, TGIC containing powder coats etc
the 100 plus chemicals that go into a modern rubber manufacture for tyres plus the significant energy consumption in the milling and curing of the rubber
the fact that carbon fibre can't fully be recycled and the possibility that carbon nano tubes may have long term effects much like asbestos
the transportation costs
and so on
the only green option is to walk, barefoot.....in the nip.....back to your mud hut then you may reduce your carbon footprint...a little bit
OP wanders back into thread scratching his head .....
Really didn't expect this to run so long but now it has I'll risk the wrath of the dark greens and pose a question 
Purely for the devil of it,
As I understand things it is a commonly held belief in some quarters that the current spell of global warming roughly coincides with increased fossil fuel burning etc over the last 400 approx years and is mainly due to the actions of humans...
What if .... And bear with me here .... Just supposing ... There was another much bigger factor at work at the same time, one that had NO human influence what so ever .... Could it just be that this factor is a much more likely reason for increased global warming AND depletion of the Ozone layer ?
And please it's not meant to be a cop out, excuse, or any other criticism you may want to throw my way BUT just look into the South Atlantic Anamoly and then tell me that there is no way the earths magnetic field could not be at least partly the reason for climate change .... I for 1 am sure that however big we humans think we are, Mother Nature sure KNOWS she is and always will be bigger
TJ,
We've discussed the concept of electric cars before. Your argument for renewables, as ever, is that there will be major improvements over current proven tech.
Why is it therefore, that unless anything you seem to disagree with is already at the pinnacle, you refuse to accept the concept that they will improve with further development?
For the record, most of the cars that Adelaide city council use are electric. They seem to work just fine. Certainly urban and suburban home-service seems the most likely industry where electric cars will have their first application. Long distance in rural areas where public transport is inefficient, and you're looking at H2 fuel cells - the intractable issue here is what's going to produce the H2?
Oil is running out, especially in terms of energy return. This is the main reason the cost keeps going up - it costs a lot more to get at it than just drilling a hole and up it comes. Light green, dark green, or a vague shade of yellow, unless radical changes are made to how modern society works, we're going to need a substitute to oil pretty soon. If everyone stopped driving, there would be a lot of hungry uneducated, ill, people sat in the cold and dark. Not an image that'll even get FishFace elected again...
What if .... And bear with me here .... Just supposing ... There was another much bigger factor at work at the same time, one that had NO human influence what so ever .... Could it just be that this factor is a much more likely reason for increased global warming AND depletion of the Ozone layer ?
No. Next question, please.
Thousands of the world's brightest people are working on this, and all have come to more or less the same conclusion. What makes you think they'd have missed something as obvious as this? Moreover, what makes you think that increasing the inputs of gases proven to cause warming at rates much faster than ever observed in the ice core and geological records will have absolutely no effect?
Good trolling though...
zokes - renewables tech is worth having now, electric cars are not.
there is no significant co2 reduction over the life of the car pre mile travelled ( counting the cost of the battery production and so on)
What they do is two things -
1) reduce pollution in cities
2) provide a greenwash / fig leaf that allows people to pretend that there is an answer that does not involve a change in lifestyle.
the halogen bulb turns more of the electriciy into heat rather than light.
At what time of year do you generally make most use of your halogen light bulbs?
(we'll get there eventually, even if we have to do it drip by drip)
Thousands of the world's brightest people are working on this, and all have come to more or less the same conclusion.
That humans are having an effect on our climate? As a sceptic I'm more than happy to agree with that point, along with that excess CO2 production does contribute to the warming effect - all good science.
Last time I looked there wasn't a huge amount of agreement on how much that effect was, nor how much difference we're making to the underlying changes which would be happening even if we weren't here. Though doubtless I'll be condemned as a heretic for even daring to suggest such a thing.
At what time of year do you generally make most use of your halogen light bulbs?
At night - which is a time of day.
You get the same light for 1/10 of the electrical energy consumed from an LED. I don't think you'll get there no matter how much you drip.
the point he is making is if the room is insulated you don't waste the heat - you need less heat from your heating
I think he actually meant Winter, when it's darker and you'd have the lights on a lot more. 
I can understaynd why you din't get that though.
It's a matter of brightness, you see.
I'm sorry Fred - I tend not to use smileys when I resort to irony. The brighter ones tend to get it without them. 
If he is going to use the 'well they heat the house' arguement (which is where I think it is going), it is a fallacy and would be a REALLY inefficient method of heating - up at ceiling level or even recessed so you heat the void above your room.
Ah, is that the Edinburgh Defence?
Seriously mate- bed time. You need the rest.
That humans are having an effect on our climate? As a sceptic I'm more than happy to agree with that point, along with that excess CO2 production does contribute to the warming effect - all good science.Last time I looked there wasn't a huge amount of agreement on how much that effect was, nor how much difference we're making to the underlying changes which would be happening even if we weren't here. Though doubtless I'll be condemned as a heretic for even daring to suggest such a thing.
Ps all the answers are in the IPCC report and its all the change is due to us as it would be cooling as the suns output has declined and its warming
and this
Thousands of the world's brightest people are working on this, and all have come to more or less the same conclusion. What makes you think they'd have missed something as obvious as this? Moreover, what makes you think that increasing the inputs of gases proven to cause warming at rates much faster than ever observed in the ice core and geological records will have absolutely no effect?Good trolling though...
why not cure cancer instead with your super skills? you do believe that exists dont you or are those experts wrong too?
Thanks Junky - you've put the world to rights again after elf and TJ supporting me on my other point.
it is a fallacy and would be a REALLY inefficient method of heating - up at ceiling level or even recessed so you heat the void above your room.
Strangely enough I have other rooms in my house above the ceilings of the rooms in which the lights are used the most. Remind me again how this energy is being wasted - where is it going?
and once more you have defeated me with the powerful tools of logic, reason and scientific evidence at your disposal rather than just make a glib pointless gentle ad hominem aside...well done you.
oh look... an argument on STW...
Happy New Year all!
renewables tech is worth having now, electric cars are not.
Eh? Why?
there is no significant co2 reduction over the life of the car pre mile travelled ( counting the cost of the battery production and so on)
Data?
You're happily counting the full LCA of the parts specific to electric cars, now why not do so for conventional cars; including the ever-reducing energy return for extracting increasingly difficult sources of oil (including, potentially, The Falklands)
What they do is two things -
1) reduce pollution in cities
And if charged from renewables (and dare I say it, nuclear), elsewhere...
2) provide a greenwash / fig leaf that allows people to pretend that there is an answer that does not involve a change in lifestyle.
To some extent, I agree. But (and it's a big 'but'), what I never get from you TJ on these sorts of threads is just how you plan to effect that lifestyle change
D'oh...
Last time I looked there wasn't a huge amount of agreement on how much that effect was, nor how much difference we're making to the underlying changes which would be happening even if we weren't here. Though doubtless I'll be condemned as a heretic for even daring to suggest such a thing.
Have a look here: http://www.ipcc.ch/ - the name should give it away a little.
To some extent, I agree. But (and it's a big 'but'), what I never get from you TJ on these sorts of threads is just how you plan to effect that lifestyle change
I have done so many times.
It will take a generation to affect the change. Simply ratchet up the price of energy and put that money into alternatives. Make the polluter pay. Along with other steps such as banning out of town shopping.
It will take a generation to affect the change. Simply ratchet up the price of energy and put that money into alternatives. Make the polluter pay. Along with other steps such as banning out of town shopping
It's a great concept, and maybe after a generation or two people will change. Any government forcing it though will result in them losing the next election, and the incoming government being elected on the promise of repealing said legislation. Sadly the opposition here are likely to get in next time thanks to this...
I'm sure a virus pandemic or something will turn up to redress the balance. We've not been here that long really.
It will take a generation to affect the change. Simply ratchet up the price of energy and put that money into alternatives. Make the polluter pay. Along with other steps such as banning out of town shopping.
Taxing the poor then, I can see that working.
I'm not going to expect anyone to read up on Australia's Carbon Tax which will come into effect on July 1st, but they have made what in my (and also Nature Climate Change's) view a very good effort at addressing this as well as possible. They're taxing only the 500 most polluting companies. They're then using that money to pay anyone on low-middle incomes the projected increase in energy prices, as well as paying land holders $1bn to improve biodiversity and reduce GHG losses from soils. And C prices are fixed for 3 years to help companies adjust before going to a full ETS scheme, and all the vagaries of markets...
Pretty sad then that even with all that, the first thing the opposition wants to do when it comes to power is unravel the whole lot, and I suspect that they will be elected on the basis of that promise...
well not read everything I stopped with elf bulbs. Well it's all come down to whether or not you care about others as a society, simple as that. In this case elf doesn't. He has put himself ahead. All his excuses are rubbish. He could have walked to the b&q. The bus would have gone anyway so carbon footprint for this journey is a lame excuse. What really matters here, is that elf didn't want to spend more in something eco friendly. Whether he owns a car or not is irrelevant, to be honest, as for example I am confident he doesn't buy his food from a local production. What matters is that people will usually put themselves before the society.
What matters is that people will usually put themselves before the society.
I presume you're including yourself (and pretty much everybody else on this thread) in that?
So we need measures that benefit the highest possible number of people, society and the environment. Bonus/malus on cars is a vote winner because more people benefit or are unaffected than those hit financially. You can subsidise the sale of two or three C1s with the tax on one Q7. If you assume that everyone wants to own a car then encourage them to use the least polluting models possible.
Incentives to insulate, use renewable energy, invest in renewable energy, buy locally made produce etc. can all be woven into the tax system and be vote winners. The problem is that our govermnents seem to be more influenced by lobby groups than the electorate. My nephew works for a lobbying company and is quite horrified by what he's paid to do - but continues to do it. Do people realise the access that these lobby companies have to our politicians and how much influence they have?
Given the quick search I did came up with much higher figures than that (and none making claims anywhere near close), I wasn't quite sure what conclusion to draw about such claims being made by somebody clearly in love with the electric car concept
This is what I hate about internet arguments. People seem to jump to the most ridiculous conclusions - that I am some kind of raving fantasist on a crusade to convince people of some strange agenda. Well, I'm in fact just a normal bloke who remembers reading a few articles a year or so ago, and I reported them.
I strive for balance in all things, especially arguments. I'm not particularly in favour of electric cars currently for MOST applications because the green generating capacity is not there. However I think they could make sense in certain fleet applications like workers travelling within a city - even more so if the depot was equipped with local renewable generating capacity to charge the cars.
Imagine the council van depot being next to the landfill/recycling point. You could burn biomass and the methane from waste to generate power to drive the vans around. In Cardiff the main site is on the coast - lots of wind potential there too. Put one big turbine up, no-one's going to complain about spoiling the view between the steelworks and the traveller site.
Please.. can we all be nice on a renewables thread for a change?
I'd like to know people's thoughts on transportation energy make-up in an ideal world.
He could have walked to the b&q.
It's through the Blackwall Tunnel. You're not allowed to walk through the Blackwall Tunnel. 
I've just remembered that there is another B+Q in Beckton, and I could actually ride there. So maybe I'll get on my bike...
All his excuses are rubbish
They are really. Let's be honest.
Well it's all come down to whether or not you care about others as a society, simple as that. In this case elf doesn't. He has put himself ahead
Well, if only we could all be the wonderfully Green environmentally beneficial person that you are, Juan, eh?
When was the last time you travelled on a 'plane, btw? How many times have you travelled on a 'plane in the last five years?
And I remember when you were living and studying in Southampton; you had a car. You lived near the Uni though, so why did you need a car?
You do know I will toy with you, then destroy you, don't you?
Ooh heating's had to go on this morning, it's just too cold. Has hardly bin on last few weeks though. Not bin cold enough.
This is what I hate about internet arguments. People seem to jump to the most ridiculous conclusions - that I am some kind of raving fantasist on a crusade to convince people of some strange agenda. Well, I'm in fact just a normal bloke who remembers reading a few articles a year or so ago, and I reported them.
...Please.. can we all be nice on a renewables thread for a change?
Sorry. Genuine apology.
I still think those figures are dodgy though...
We have that system in my town, Molgrips. Now they've really got to grips with the multiple rubbish bins system the stuff that goes into the incinerator/generator is dry enough to be excellent fuel. The incinerator in Tysley had trouble burning at all the waste was so full of wet organic material in the 80s.
The electricty goes into the grid and is more than enough to charge the electric vehicles the town has, including the cars the public can use on "Vélib" system (cars you get in, use and drop off at any charging station in town.
What no one seems to realise or accept is that we cannot save the planet. We might be able to delay its demise, but we and the planet will inevitably be toast.
Ok it's a few years off yet, but given that, due to the laws of physics, we will not be able to do a Star Trek and occupy other planets, we are all doomed.
Lets party like its, 13,999,999,999.
Ok it's a few years off yet, but given that, due to the laws of physics, we will not be able to do a Star Trek and occupy other planets
Even if we could it would only be delaying the inevitable.
You must log in to post.
Advertisement
Advertisement
Advertisement
Advertisement
Advertisement
