One Of World's Largest Solar Plants To Be Built In Lopburi Receives Loan From ADB
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43 replies to this topic
#26Posted 2010-07-31 16:33:45
I am a fan of concentrated solar. Using heliostats to collect the rays and concentrate the heat on a boiling vat of salt is a good system. And if done right it can produce base load electricity. The Spanish have been working with it for years.
#27Posted 2010-07-31 18:24:09
^^^
And are now paying the price for their folly Quote
Only two years ago, Spanish solar energy companies feasting on generous government subsidies expanded at a feverish pace, investing €18 billion (then worth roughly $28 billion) to blanket rooftops and fields with photovoltaic panels. They briefly turned the country into the top solar market in the world. Then came a monumental case of sunburn. The market crashed under a wave of subsidy cuts, fears of possible forced tariff paybacks and allegations of fraud involving energy produced at night being sold as solar power to collect super-premium prices. Spain’s subsidies for solar were four to six times higher than those for wind. Prices charged for solar power were 12 times higher than those for fossil fuel electricity. #28Posted 2010-08-02 07:15:53
brahmburgers, What use is to be made of Thailand's experimental hemp crops, do you know? Although there's already a wealth of data from other countries re; hemp (growing it, its uses, etc) it appears some Thais in high places decided Thailand needed to do its own research. - best soils, best micro-climates, need for pesticides/herbicides, companion crops/rotation, etc. One research paper I saw, from Canada, mentioned it doesn't need pesticides/herbicides, which is a big step up from rice. Incidentally, pretty much ALL rice in Thailand has heavy chemical treatments during cultivation. I see the guys applying it - heavy handedly. Think about that, next time you eat Thai rice. Thais eat rice with every meal. Am not sure if I understand the question about hemp, or if it's a real question. As for the uses of hemp itself, ...it has a vast amount of uses, practical nutritional, biomass, etc. ....and I'd bet RickBradford knows that. In today's Nation, there's a Letter to the Editor from me, mentioning hemp and nuclear. #29Posted 2010-08-02 07:23:08
^^^ And are now paying the price for their folly Quote
Only two years ago, Spanish solar energy companies feasting on generous government subsidies expanded at a feverish pace, investing €18 billion (then worth roughly $28 billion) to blanket rooftops and fields with photovoltaic panels. They briefly turned the country into the top solar market in the world. Then came a monumental case of sunburn. The market crashed under a wave of subsidy cuts, fears of possible forced tariff paybacks and allegations of fraud involving energy produced at night being sold as solar power to collect super-premium prices. Spain’s subsidies for solar were four to six times higher than those for wind. Prices charged for solar power were 12 times higher than those for fossil fuel electricity. It might not be 'folly.' There are decades left for the scenario to play out. Those solar panels will last for decades, meanwhile the price of fossil fuels will rise. Oil could exceed the price of almond oil per liter b4 2 long. Also, much of Spain's alt.energy investment was not on PV panels, but on one or more large scale solar heat plants (using mirrors, salt) which is a smart investment - particularly for the long run, and is what Thailand should be investing in. Thailand won't see the folly of its quixotic nuclear lust until years after the plants are built, and the manifold problems of nuclear become achingly evident. #30Posted 2010-08-02 13:03:38 Quote ....the price of fossil fuels will rise. Oil could exceed the price of almond oil per liter b4 2 long. That's an interesting one. On the face of it, oil prices should be set to rise rapidly -- huge increases in demand from the developing world (particularly China and India) and the shadow of 'peak oil'. And yet, the price stubbornly refuses to rise dramatically and the date set for peak oil continues to be pushed back, due to new discoveries and new techniques. The price is very volatile, though Cambridge Econometrics estimates a 2% annual rise to 2020. It's easy to find analyses like Debunking the Myth of Peak Oil - Why the Age of Cheap Oil is Far From Over Quote Over the past 33 years mankind has consumed more than three times the world's known oil reserves in 1976 – and today proven oil reserves are nearly double what they were before we started. The story with natural gas is even better – here and around the world enormous amounts of natural gas have been found. More will be found. But if you had asked in 1976 what the supply of oil would be like given the demand of 2010, you would have come up with the "Peak Oil" theory then, and we would have supposedly run out of oil decades ago; an ongoing impending crisis. I guess it comes down to a question of political viewpoint -- whether you think it is a good idea to throw tens of billions of dollars in subsidies at technologies like solar and wind, whose usefulness may never match their undoubted feel-good factor. A conservative would say No, a progressive would say Yes. Edit: Nice letter to The Nation, btw. Edited by RickBradford, 2010-08-02 13:32:04. #31Posted 2010-08-02 13:42:27
I forgot to mention, France generates 78% of it's energy from nuclear power. They are able to make it so cheaply that they export much of it to neighboring countries. The remaining 22% is almost entirely from renewable sources. A great model for the rest of the world.
Edited by ScubaBuddha, 2010-08-02 13:50:00. #32Posted 2010-08-04 07:26:09
I forgot to mention, France generates 78% of it's energy from nuclear power. They are able to make it so cheaply that they export much of it to neighboring countries. The remaining 22% is almost entirely from renewable sources. A great model for the rest of the world. #33Posted 2010-08-04 08:23:59 Quote Thailand was discovering what a ball bearing was. There must be a Thai patent on it ofcourse. #34Posted 2010-08-04 10:57:43
Wind power is usable, but is noisy and expensive. The cost will come down as more and more turbines are made by more and more companies - if the demand is there. But the noise problem has not been solved.
(It is caused by the simple fact that one has to have a mast. When the blades pass the mast the wind flow is interrupted and a nise similar to a sonic boom is emitted. I have not found a solution, nor has anyone else yet - make your millions with a practical solution!) Solar power can be done with either PV cells, directly generating elactricity (PV cells are expensive) or by concentrating the sun's rays on to a media that will efficiently absorb abd store the heat for further superheating of water to drive turbines. The system so far is not cost-effective. Geothermal power is costly and requires a good source of geothermal energy. To my mind the New Zealahders have the best handle on this business and are selling it to places like Indonesia, where the geology suits it (plenty of volcanoes, for instance, thus hot springs / hot gases down there somewhere). Hydropower would, to me, be a good idea for Thailand, as there is plenty of water in narrow valleys, thus can be dammed fairly cheaply. Also there are places where tunnels could be used instead of dams, thus not interrupting the flow of water in any great amount. Gas / Oil fired generation is a very ompetitive in both construction and running costs. Coal-fired plant will have to be phased out soon, there is too much pollution and not enough efficient scrubbers (at least in SE Asia and China). Nuclear - I like it, but one has to supervise all construction processes very carefully and with the attitude of most SE Asian nationals these days (you've been here too long - we can do it by ourselves) I am reluctant to endorse it without knowing who is supervising, who is constructing, who is doing the engineering. There must be a large Western involvement at every stage and every level of management. And no pressure to cut costs - that does not work with a nuclear plant. #35Posted 2010-08-04 11:31:25
I forgot to mention, France generates 78% of it's energy from nuclear power. They are able to make it so cheaply that they export much of it to neighboring countries. The remaining 22% is almost entirely from renewable sources. A great model for the rest of the world. the hypocrite hippie with a ugly white man superiority complex. #36Posted 2010-08-04 16:23:43
I forgot to mention, France generates 78% of it's energy from nuclear power. They are able to make it so cheaply that they export much of it to neighboring countries. The remaining 22% is almost entirely from renewable sources. A great model for the rest of the world. the hypocrite hippie with a ugly white man superiority complex. What are you on about? France - for instance the Montgolfier brothers - were in the forefront of aviation. It is not anything to do with a superiority complex - it is fact. #37Posted 2010-08-04 18:20:55
I forgot to mention, France generates 78% of it's energy from nuclear power. They are able to make it so cheaply that they export much of it to neighboring countries. The remaining 22% is almost entirely from renewable sources. A great model for the rest of the world. the hypocrite hippie with a ugly white man superiority complex. What are you on about? France - for instance the Montgolfier brothers - were in the forefront of aviation. It is not anything to do with a superiority complex - it is fact. it is if the argument of the nazi hippie goes in that direction that Thai people are not smart enough to handle a nuclear power station. #38Posted 2010-08-04 20:47:22
I think that it's great that Thailand is investing in solar energy. There's one KW/square meter available here (near the equator), yet most of the countries currently investing in Solar are places like Germany, where the energy density is much lower.
However, photo-voltaic panels still have a long way to go before they are practical and competitive. Currently, the most efficient use of solar power would be using parabolic mirrors or Fresnel mirrors to power Stirling engines. This technology is available now and, while it is more maintenance intensive than PV cells, it is a promising alternative. #39Posted 2010-08-12 22:14:46
Wind power is usable, but is noisy and expensive. The cost will come down as more and more turbines are made by more and more companies - if the demand is there. But the noise problem has not been solved. (It is caused by the simple fact that one has to have a mast. When the blades pass the mast the wind flow is interrupted and a nise similar to a sonic boom is emitted. I have not found a solution, nor has anyone else yet - make your millions with a practical solution!) Solar power can be done with either PV cells, directly generating elactricity (PV cells are expensive) or by concentrating the sun's rays on to a media that will efficiently absorb abd store the heat for further superheating of water to drive turbines. The system so far is not cost-effective. Geothermal power is costly and requires a good source of geothermal energy. To my mind the New Zealahders have the best handle on this business and are selling it to places like Indonesia, where the geology suits it (plenty of volcanoes, for instance, thus hot springs / hot gases down there somewhere). Hydropower would, to me, be a good idea for Thailand, as there is plenty of water in narrow valleys, thus can be dammed fairly cheaply. Also there are places where tunnels could be used instead of dams, thus not interrupting the flow of water in any great amount. Gas / Oil fired generation is a very ompetitive in both construction and running costs. Coal-fired plant will have to be phased out soon, there is too much pollution and not enough efficient scrubbers (at least in SE Asia and China). Nuclear - I like it, but one has to supervise all construction processes very carefully and with the attitude of most SE Asian nationals these days (you've been here too long - we can do it by ourselves) I am reluctant to endorse it without knowing who is supervising, who is constructing, who is doing the engineering. There must be a large Western involvement at every stage and every level of management. And no pressure to cut costs - that does not work with a nuclear plant. Thanks for the run-down. It seems you are in the industry? #40Posted 2010-08-12 22:21:49
Thai people are nice, I really like living here. But "mai pen rai" is part of the culture, and it simply doesn't go well with nuclear technology. I guess you are Thai, otherwise you wouldn't have made that remark. I also guess that you are well-educated, otherwise you wouldn't be posting here. Thai people are smart. However, you won't deny that the mai-pen-rai factor is detrimental to dangerous technology as nuclear power, would you? #41Posted 2010-08-12 23:19:37
Thai people are nice, I really like living here. But "mai pen rai" is part of the culture, and it simply doesn't go well with nuclear technology. I guess you are Thai, otherwise you wouldn't have made that remark. I also guess that you are well-educated, otherwise you wouldn't be posting here. Thai people are smart. However, you won't deny that the mai-pen-rai factor is detrimental to dangerous technology as nuclear power, would you? Tom, please pay attention to your quotes. That was not me that said what your post is showing I said. #42Posted 2010-08-13 09:55:38
Tom, please pay attention to your quotes. That was not me that said what your post is showing I said. Sorry for that. I find the quoting function not very user-friendly in this software, unless you always want to make a full-quote. My apologies. #43Posted 2010-08-13 19:24:48
Here's an interesting article that's relevant to this story: Nuke/Solar study
If links are not allowed or if you don't like to click on links, basically it refers to a study from Duke Univ. that says that Solar is now cheaper than Nuclear power. #44Posted 2010-08-13 20:25:21
Here's an interesting article that's relevant to this story: Nuke/Solar study If links are not allowed or if you don't like to click on links, basically it refers to a study from Duke Univ. that says that Solar is now cheaper than Nuclear power. Wow, this is good news. The figures are in billion dollars per plant, though. How big is a plant in square kilometers? In the US, they may have space in abundance, and using deserts to become productive this way is good. (Someone will say that snakes will suffer as they don't get enough sunlight, I guess.) But here in Thailand, space is either productive farmland, or oxygen-producing forest (with hundreds of plant and animal species depending on it). So, is this reasearch transferrable to Thailand? |
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