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ailwyn wrote:http://www.bbc.co.uk/news/business-17428818
How about going back to the future?
nitroman wrote:people who think solar & wind-power are sufficient to supply our future needs still tick me off, because simply, they are ignorant of the facts & thus stupid
ashm wrote:Only if our appetites stay as gluttonous as they currently are. Tidal, hydroelectric, wind, solar and geothermal could potentially meet our needs if we can also become much less wasteful in how we actually use the energy, and transition away from high embedded energy materials. Industrial loads are very significant, and gas & electricity consumption at many industrial sites can be cut by cut by 30-60% just by sorting out the lighting and heating systems. The main problem is that most companies focus on incredibly short term priorities, so that they end up selecting very wasteful and expensive technology because it has the lowest up-front cost.
Example: I recommend that a large warehouse upgrade to modern lighting systems, which would save £250k per year, pay back the capital within 2 years and save the company a fortune thereafter. Total no-brainer, but site and regional management won't approve it because everybody's annual bonuses would be hammered by the capital cost in year 1. In effect, most companies I've worked with won't approve _any_ capital investments unless they're cash positive within year 1. Daft.
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ashm wrote:Example: I recommend that a large warehouse upgrade to modern lighting systems, which would save £250k per year, pay back the capital within 2 years and save the company a fortune thereafter. Total no-brainer, but site and regional management won't approve it because everybody's annual bonuses would be hammered by the capital cost in year 1. In effect, most companies I've worked with won't approve _any_ capital investments unless they're cash positive within year 1. Daft.
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nitroman wrote:Possible analogy for you to use: Fruit trees. When you plant an olive tree you won't get an olive for 7 years, and you can't plant just one, you need a whole orchard to be an olive farmer, but people do it. And yet you are suggesting nothing so draconian.
nitroman wrote:Understand what you're saying, but that goes back to the ancient wish "If only people were better," there'd be no murder, rape, hunger, and on and on. To think human nature will suddenly change just because it's the right thing to do is a wish unfullfilled for all mankind.
With China & India industrializing and the upward trend of populations everywhere I think overall energy DEMAND will continue going up. For instance, 20 years ago there were less than 1 million private cars in China. Now they are the largest car market in the world with over 14 million sold EVERY YEAR! That's more than ALL of EUROPE combined. I realistically don't foresee sensible consumption refitting happening on nearly fast enough a scale to counter worldwide growth. Indiginous energy reserves in India & China are primarily coal, which burns much dirtier than most other energy sources. China is now building power plants on a scale unprecedented in human history.
ashm wrote:But there are occasional changes for the better. We stopped using CFCs, and asbestos, and DDT, and created building standards and so on, all of which caused considerable inconvenience and expense for a while. On the other hand, we didn't stop using whale oil until the whales pretty much ran out...
Adam

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