It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Thank you.
Some features of ATS will be disabled while you continue to use an ad-blocker.
Originally posted by boncho
Solar for the most part doesn't give a good EROI (Energy return on energy invested).
img.abovetopsecret.com...
Also, the capital returns are not the same as oil, coal and other energy sources.
Originally posted by violet
It sounds nice in theory but it isn't that simple.
Solar power requires the Sun and where I live its mostly Gray skies in the storm season, and most definitely would be clouded over in an approaching storm. It wouldn't help in this situation. My storms don't have 'eyes' where sunny breaks appear in order to charge them.
If there's any conspiracy, it would be about keeping us dependant on their services, not for profit, but to control all energy sources. They can pull off a total blackout any time they need to.edit on 31-10-2012 by violet because: (no reason given)
I find your EROI chart laughable. I wonder who put it out and who their partners are.
Link
The EROI for electricity generation from hydrothermal resources has been reported by a handful of researchers with a range of 2.0 to 13.0 (Table 1).
so.. why are we still using oil and gas?
This chart doesn't take into account new technologies for solar like the V3 solar cone which produces 20 times more electricity than traditional monocrystalline flat panels.
This should be Illegal. If you own land and choose not to use the city utilities and have alternate means, you should be allowed to.
Originally posted by SGTSECRET
No, solar panels do not require direct sunlight at all to create energy. Too much direct sunlight actually causes them to be less effective unless they are equipped with a cooling system.
Originally posted by ascension211
reply to post by hawkiye
Thank you, very nice info. Where do stand on the conspiracy issue?
That's why the put out all sorts of propaganda against alternative energies and fuels.
Solar panels you can print out on your ink jet printer were invented 2 or 3 years ago and still have not come to market
They also use rare earths that are expensive and which China has a monopoly on.
They managed to produce solar cells of 5% efficiency - and say that in future, they will aim to increase this figure to about 12% to make the product commercially viable.
Most people believe ethanol fuel is not cost effective when in fact is a 1:8 EROI it does not take food away from starving countries etc etc. All the articles can be traced back to one professor who is on the Standard Oil payrolll.
Link
Most alternatives to conventional liquid fuels have very low or unknown EROIs. The EROI for ethanol derived from corn grown in the U.S. is about 1.5:1, well below that for conventional motor gasoline.
Ethanol from sugarcane grown in Brazil apparently has a higher EROI, perhaps as high as 8:1, due to higher yields of sugarcane compared to corn, the use of bagasse as an energy input, and significant cost reductions in ethanol production technology.
***
Sugarcane is a tropical, perennial grass that forms lateral shoots at the base to produce multiple stems, typically three to four metres high and about five cm in diameter.
...
Sugarcane cultivation requires a tropical or temperate climate, with a minimum of 60 centimetres (24 in) of annual moisture. It is one of the most efficient photosynthesizers in the plant kingdom. It is a C4 plant, able to convert up to one percent of incident solar energy into biomass.[17] In prime growing regions, such as Mauritius, Puerto Rico, India, Indonesia, Pakistan, Peru, Brazil, Bolivia, Colombia, Australia, Ecuador, Cuba, the Philippines, El Salvador and Hawaii, sugarcane crop can produce over 15 kilograms of cane per square meter of sunshine.
Tesla invented and demonstrated the means for
JP Morgan who was funding him found out it could not be metered he shut him down and tried to smear his name and erase him from history
The stock market crash of 1901 and the soaring costs of the tower led to the scheme’s collapse and the tower was demolished for salvage in 1917.
www.permaculture.com...
Most ethanol research over the past 25 years has been on the topic of energy returned on energy invested (EROEI). Public discussion has been dominated by the American Petroleum Institute’s aggressive distribution of the work of Cornell professor David Pimentel and his numerous, deeply flawed studies. Pimentel stands virtually alone in portraying alcohol as having a negative EROEI—producing less energy than is used in its production.
In fact, it’s oil that has a negative EROEI. Because oil is both the raw material and the energy source for production of gasoline, it comes out to about 20% negative. That’s just common sense; some of the oil is itself used up in the process of refining and delivering it (from the Persian Gulf, a distance of 11,000 miles in tanker travel).
The most exhaustive study on ethanol’s EROEI, by Isaias de Carvalho Macedo, shows an alcohol energy return of more than eight units of output for every unit of input—and this study accounts for everything right down to smelting the ore to make the steel for tractors.
Brazil is living proof they run 50% of their cars on ethanol and imported zero oil for many years up till a few years ago when they caved to international (US) pressure from the oil cartels...
Anyway ignore Bonchos BS he jumps on every energy thread and repeats the same BS over and over no matter how many times it has been debunked...
*
Florida, the top producing state, produced more than 13.1 million tons of sugarcane for sugar in 2011. The state typically contributes about half of the total U.S. cane sugar crop. That same year, Louisiana produced more than 10.8 million tons of sugarcane. Texas and Hawaii also produce more than one million tons annually. (NASS)
Brazil is, by far, the world's largest producer of sugarcane, accounting for one third of world production.
Source
Revised estimate for 2011/2012 sugarcane harvest sets total South-Central Brazil harvest at 510.24 million tons
Oil is subsidized far more then ethanol and the Ethanol subsidies ended in 2011
In fact, it’s oil that has a negative EROEI. Because oil is both the raw material and the energy source for production of gasoline, it comes out to about 20% negative. That’s just common sense; some of the oil is itself used up in the process of refining and delivering it (from the Persian Gulf, a distance of 11,000 miles in tanker travel).
42500 horsepower-hour = 18.6490080968 barrels of
The most exhaustive study on ethanol’s EROEI, by Isaias de Carvalho Macedo, shows an alcohol energy return of more than eight units of output for every unit of input—and this study accounts for everything right down to smelting the ore to make the steel for tractors.
Originally posted by boncho
reply to post by hawkiye
Brazil is living proof they run 50% of their cars on ethanol and imported zero oil for many years up till a few years ago when they caved to international (US) pressure from the oil cartels...
Anyway ignore Bonchos BS he jumps on every energy thread and repeats the same BS over and over no matter how many times it has been debunked...
You should probably try reading my posts instead of just claiming they are "debunked" in magical fashion. Care to tell us how much sugarcane the US grows per annum?
I can help you. The US numbers for sugar production are around 50 Million tons.*
Florida, the top producing state, produced more than 13.1 million tons of sugarcane for sugar in 2011. The state typically contributes about half of the total U.S. cane sugar crop. That same year, Louisiana produced more than 10.8 million tons of sugarcane. Texas and Hawaii also produce more than one million tons annually. (NASS)
Brasil on the other hand produces nearly 1/3 the world's production totals:
Brazil is, by far, the world's largest producer of sugarcane, accounting for one third of world production.
Source
Revised estimate for 2011/2012 sugarcane harvest sets total South-Central Brazil harvest at 510.24 million tons
So if you can enlighten us on how the US is supposed to be able to boost ethanol use while only producing 10% of the sugarcane Brazil does, by all means tell us. Remember that there are only 3 or 4 states that can even grow it...
Oil is subsidized far more then ethanol and the Ethanol subsidies ended in 2011
You've misunderstood what I mean by subsidy. If an energy production system has a negative EROI, than the only way to keep it going is to put more energy into it (subsidizing the energy produced). If corn is 1.5:1, than it's fine, but if it's 0.8:1, than it is a subsidy.
And oil does not give a negative EROI, in almost every case. It wouldn't be profitable if it did. Don't forget it's one of the most taxed commodities there is also...