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Member Run Boards >> Environment >> The case for renewables http://www.ozpolitic.com/forum/YaBB.pl?num=1438225480 Message started by lee on Jul 30th, 2015 at 1:04pm |
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Title: The case for renewables Post by lee on Jul 30th, 2015 at 1:04pm
Just how much can we rely on renewables? Let's study PV systems.
A case study from the USA 'It also equates to a square having sides 171.3 km in length. In practicality the required area would be much larger for allowance between panels to allow construction crews access and to periodically clean the panels as dust and dirt significantly affect conversion efficiency. This requires 29,333,333,333 (29.33 billion) solar panels and 4.4 million battery modules contained in a number 40 shipping container (40 feet X 6 feet 8 feet,) covering a surface area of 130.8 km2 or a square with sides of 11.4 km with zero space between modules. This data is presented in a straightforward fashion for nonscientists in the publication “Going Solar.” http://fusion4freedom.us/going-solar/ 'Twenty nine and 1/3 billion is a very large number of panels to manufacture. As pointed out in “Going Solar” it would take 929 years to produce this number of panels if they could be built at the rate of 1 per second. ' http://fuelrfuture.com/review-of-forbes-on-line-magazine-article-solar-energy-revolution-a-massive-opportunity/ And then of course competing economies would also want the PV cells, presumably. How long for the world to have enough panels? |
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Title: Re: The case for renewables Post by Chimp_Logic on Jul 30th, 2015 at 1:24pm
Why are you using PV systems as a test case of renewable energy efficacy and efficiency?
Why not use large scale Solar thermal power which also operates under base load conditions? |
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Title: Re: The case for renewables Post by Chimp_Logic on Jul 30th, 2015 at 1:26pm
LOOK lee LOOK
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Title: Re: The case for renewables Post by lee on Jul 30th, 2015 at 3:02pm
Wow, bird flamers. What is the stated output? What is normal output? How long do the panels last?
How much energy does the making of PV panels take? Can it be done from solar power efficiently? 'But since the sun doesn’t shine all the time, the plant uses natural gas to keep the water hot. And, apparently, there hasn’t been enough sun to do that. Bright Source Energy, the company operating the plant, is petitioning the California government, requesting permission to burn more natural gas and to emit 94,749 more tons of carbon dioxide per year. That’s the equivalent of emissions from about 16,500 automobiles. (See full story at the Hockey Schtick)' https://wryheat.wordpress.com/2014/08/24/ivanpah-solar-plant-wants-to-burn-more-natural-gas/ So tell me again how efficient it is. |
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Title: Re: The case for renewables Post by oHTheStenchofCopperInternet on Jul 30th, 2015 at 3:44pm Annual sunshine hours map of the world .." High Voltage DC (HVDC) technology is a proven and economical method of power transmission over very long distances and also a trusted method to connect asynchronous grids or grids of different frequencies. With HVDC energy can also be transported in both directions.[66] For long-distance transmission HVDC suffers lower electrical losses than alternating current (AC) transmission.".. source: https://en.wikipedia.org/wiki/Desertec |
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Title: Re: The case for renewables Post by Pho Huc on Jul 30th, 2015 at 3:48pm
Solar thermal doesn't use photovoltaic cells, just plain old mirrors.
Thats one its main advantages. |
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Title: Re: The case for renewables Post by Rider on Jul 30th, 2015 at 5:17pm Chimp_Logic wrote on Jul 30th, 2015 at 1:24pm:
Efficiency? How many thousands of hectares need to be covered to replace a coal fired power station? |
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Title: Re: The case for renewables Post by lee on Jul 30th, 2015 at 5:31pm Pho Huc wrote on Jul 30th, 2015 at 3:48pm:
Bright Source runs Ivanpah, which uses plain old mirrors. But the solar thermal - molten salt etc, is not providing enough to keep it going. That's why it needs natural gas to keep running efficiently. |
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Title: Re: The case for renewables Post by oHTheStenchofCopperInternet on Jul 30th, 2015 at 5:44pm lee wrote on Jul 30th, 2015 at 5:31pm:
co-generation: otherwise known as synergy ;) ;) |
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Title: Re: The case for renewables Post by Chimp_Logic on Jul 30th, 2015 at 5:51pm lee wrote on Jul 30th, 2015 at 5:31pm:
so your argument for burning coal to make electricity is that solar thermal needs 5% of its heating capacity supplied by gas, so it is forbidden to use solar thermal because it is sometimes only 95% renewable whereas coal and other fossil fuels are 0% renewable. You certainly have given this a lot of thought havent you lee - very impressive reasoning Well done lee. |
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Title: Re: The case for renewables Post by Chimp_Logic on Jul 30th, 2015 at 5:52pm Rider wrote on Jul 30th, 2015 at 5:17pm:
Australia doesnt have any spare land anywhere that is drenched in sunshine??? Well done rider - you are certainly one of the great forward looking thinkers of our time arent you Rider. |
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Title: Re: The case for renewables Post by oHTheStenchofCopperInternet on Jul 30th, 2015 at 6:43pm Chimp_Logic wrote on Jul 30th, 2015 at 5:51pm:
With a brain like lees who needs enemies :D :D |
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Title: Re: The case for renewables Post by Sprintcyclist on Jul 30th, 2015 at 6:45pm
I am a big fan of renewables.
Think they are better done 'locally' where best suited. White Cliffs in NSW used to be totally solar powered. It's doable |
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Title: Re: The case for renewables Post by oHTheStenchofCopperInternet on Jul 30th, 2015 at 6:46pm Chimp_Logic wrote on Jul 30th, 2015 at 5:52pm:
We could build enough solar thermal to power the world by wifi ... probably :o :o :o Hey, I just thought of a business plan :D :D :D :D :D |
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Title: Re: The case for renewables Post by lee on Jul 30th, 2015 at 7:11pm BatteriesNotIncluded wrote on Jul 30th, 2015 at 6:46pm:
Go for it, without subsidies. 'Under its current license, the project is allowed to use up to 328 million standard cubic feet of natural gas (MMSCF) per year at each of its three units. That's with the proviso that the total amount of natural gas used can't climb above 5 percent of the energy the project gets from the sun. Ivanpah's owners (doing business as the shell corporations Solar Partners I, II, and VIII) want that upper limit increased to 525 MMSCF per year per unit, and the 5 percent limit abolished altogether. If you're wondering about that acronym, MMSCF is a bit of natural gas industry jargon based loosely on Roman numerals, with M meaning 1,000. A standard cubic foot, generally speaking, is the amount of natural gas that would take up a cubic foot of volume at sea level at room temperature.' http://www.kcet.org/news/redefine/rewire/solar/concentrating-solar/ivanpah-solar-plant-owners-want-to-burn-a-lot-more-natural-gas.html Apparently 5% just ain't enough. |
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Title: Re: The case for renewables Post by Rider on Jul 30th, 2015 at 8:39pm Chimp_Logic wrote on Jul 30th, 2015 at 5:52pm:
So you have no answer. Just deflection as usual by the fraudulant socialist snake oil spruiker. Embarrassed by the pathetic power output and reliance on beautiful fossil fuels to make the spastic solar plant run no doubt. |
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Title: Re: The case for renewables Post by Chimp_Logic on Jul 30th, 2015 at 8:48pm Rider wrote on Jul 30th, 2015 at 8:39pm:
so solar plants are spastic now? You couple your standard bigotry against people who are different with your innate hatred of children and sprinkle some derange lunacy and ignorance and then enter this forum totally intellectually disarmed. You are incapable of even posing a remotely sensible question let alone comprehend the basics of AGW. A primary school student understands how human activities are driving global temperatures upwards and the intimate link between this increase and climate change, speciation loss, habitat destruction, ocean chemistry alteration, and rising sea levels etc. Oh but the Great Rider rides into the coal sunset like a smelly putrid stenched up fossil freak maggot and hopes that nobody will notice a thing. Apologise and then leave |
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Title: Re: The case for renewables Post by lee on Jul 30th, 2015 at 9:01pm Sprintcyclist wrote on Jul 30th, 2015 at 6:45pm:
'For the White Cliffs system the critical level seemed to be in the region of 700 W/m 2. Even at this level output was only around 50% of the maximum operating output (Kaneff, 1991, Figure 82). At this favourable site only about 80-85% of summer solar energy incidence was at a level greater than 700W/m 2 and in winter the figure fell to 60--75% (Kaneff, 1991, Table XV-A). The output for the White Cliffs plant at 400 W/m 2 was only 16% of peak capacity (Kaneff, 1991, p 178). Systems presently under development are projected to be capable of commencing operations at 400 W/m 2 (Morrison, 1993; Luzzi, 1993). In Sydney in winter solar radiation exceeds 400 W/m 2 for only two hours a day, and in Brisbane, 27 ° from the equator, for only four hours. ' http://scottvalentine.net/yahoo_site_admin/assets/docs/trainer_can_renewable_energy_sustain.27203534.pdf |
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Title: Re: The case for renewables Post by Chimp_Logic on Jul 30th, 2015 at 9:28pm |
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Title: Re: The case for renewables Post by lee on Jul 30th, 2015 at 10:26pm
I see that the proposal cites Ivanpah as a similar technology.
Ivanpah is approx 35 degrees North, Port Augusta approx 32 South. Ivanpah wants to add more gas burning than its original 5%, Port Augusta says that there will be no gas. http://media.bze.org.au/Repowering_PortAugusta.pdf Something doesn't seem quite right. |
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Title: Re: The case for renewables Post by Chimp_Logic on Jul 31st, 2015 at 12:08am lee wrote on Jul 30th, 2015 at 10:26pm:
What proportion of South Australia's power requirements is met with renewable energy sources? |
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Title: Re: The case for renewables Post by lee on Jul 31st, 2015 at 11:55am Chimp_Logic wrote on Jul 31st, 2015 at 12:08am:
Is Port Augusta the whole of South Australia now? |
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Title: Re: The case for renewables Post by Chimp_Logic on Jul 31st, 2015 at 12:52pm lee wrote on Jul 31st, 2015 at 11:55am:
as we speak, what proportion of Sth Australia's power needs are met by renewable energy sources? |
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Title: Re: The case for renewables Post by oHTheStenchofCopperInternet on Jul 31st, 2015 at 1:46pm Rider wrote on Jul 30th, 2015 at 8:39pm:
Rowan Dean is getting owned about exactly what markets are on foxtel! It's a friggin' hoot watching him suck mea culpa realising his whole life was a waste of infected anger: lucky he got paid his thirty pieces of silver... maybe he's about to give it back cos he looks like he is ready to pull the pin out of embarrassment! |
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Title: Re: The case for renewables Post by gizmo_2655 on Jul 31st, 2015 at 7:21pm BatteriesNotIncluded wrote on Jul 31st, 2015 at 1:46pm:
And you arguing in favour of renewables pretty much proves they aren't worth supporting.. |
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Title: Re: The case for renewables Post by Chimp_Logic on Jul 31st, 2015 at 7:48pm gizmo_2655 wrote on Jul 31st, 2015 at 7:21pm:
you really should apologise mate - really nasty stuff gizmo2366 |
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Title: Re: The case for renewables Post by Sprintcyclist on Jul 31st, 2015 at 7:59pm lee wrote on Jul 30th, 2015 at 9:01pm:
It was an effective long term solution. They closed it down and went to diesel generators I believe. Quote:
white-cliffs-solar-energy-glory-recognised renewable power is effective, reliable. |
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Title: Re: The case for renewables Post by Sprintcyclist on Jul 31st, 2015 at 8:03pm Quote:
http://www.enviro-friendly.com/solar-white-cliffs.shtml |
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Title: Re: The case for renewables Post by gizmo_2655 on Jul 31st, 2015 at 8:41pm Chimp_Logic wrote on Jul 31st, 2015 at 7:48pm:
Compare to the crap YOU spew out...that was very polite, so, no, I will NOT apologise (especially not to an idiot like DRAH, or you, for that matter) |
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Title: Re: The case for renewables Post by Chimp_Logic on Jul 31st, 2015 at 9:37pm gizmo_2655 wrote on Jul 31st, 2015 at 8:41pm:
You have morally sunk to a new low mate I dont even think your apology would make any difference now. DRAH deserves better from you. He cares about the children. Unlike someone else in here who shall remain nameless What's wrong with some common courtesy and politeness you putrid slab of decaying weasel intestinal excrement scum paste stench? Now haul your foul putrid stinkin' ass out of here mate |
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Title: Re: The case for renewables Post by Rider on Aug 1st, 2015 at 4:58am Chimp_Logic wrote on Jul 31st, 2015 at 12:08am:
Which state has the highest electricity costs to consumers? Yup...SA.....muppet. |
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Title: Re: The case for renewables Post by Rider on Aug 1st, 2015 at 5:07am Chimp_Logic wrote on Jul 30th, 2015 at 8:48pm:
What?? No freedom of speech allowed in the socialists world...would never have guessed that. Take your snake oil socialism masquerading as environmentalism and go to Cuba, they say it's a great place to live....you'd love it. Everything you spruik is garbage. |
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Title: Re: The case for renewables Post by oHTheStenchofCopperInternet on Aug 1st, 2015 at 11:13am gizmo_2655 wrote on Jul 31st, 2015 at 7:21pm:
rowan dean doesn't know how markets work: he is the joke of foxtel and they are all cringing because he got his ass handed to him :D :D :D :D :D :D :D :D :D |
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Title: Re: The case for renewables Post by oHTheStenchofCopperInternet on Aug 1st, 2015 at 11:16am Rider wrote on Aug 1st, 2015 at 5:07am:
What, no freedom from critique in 'free-market lala land' that doesn't exist and never will because governments always intervene and pick winners thus oligopoly reigns 8-) 8-) 8-) 8-) 8-) 8-) 8-) 8-) 8-) ?? C'mon poindexter: show me some moves bro!! You got shite ay bro :D :D :D :D :D :D :D :D :D ;) ;) |
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Title: Re: The case for renewables Post by oHTheStenchofCopperInternet on Aug 1st, 2015 at 11:19am gizmo_2655 wrote on Jul 31st, 2015 at 8:41pm:
Gizmo doesn't like it when he is called out on the nomenclature of 'multi-year ice' :D :D :D :D :D :D :D :D Hint: nomenclature is why science is done by consensus ;) ;) |
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Title: Re: The case for renewables Post by gizmo_2655 on Aug 1st, 2015 at 6:12pm BatteriesNotIncluded wrote on Aug 1st, 2015 at 11:19am:
Science isn't done by "consensus" ;D ;D ;D ;D |
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Title: Re: The case for renewables Post by oHTheStenchofCopperInternet on Aug 2nd, 2015 at 4:48pm gizmo_2655 wrote on Aug 1st, 2015 at 6:12pm:
Gizmo doesn't know what nomenclature is!! :D :D Gizmo loves me long time and he wants every man woman and child to watch our love over and over again.... ;D ;D |
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Title: Re: The case for renewables Post by gizmo_2655 on Aug 2nd, 2015 at 5:17pm BatteriesNotIncluded wrote on Aug 2nd, 2015 at 4:48pm:
I knew what nomenclature before you were born.. It doesn't change the fact that science is NOT done by 'popular vote' or consensus. |
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Title: Re: The case for renewables Post by lee on Aug 2nd, 2015 at 5:21pm gizmo_2655 wrote on Aug 2nd, 2015 at 5:17pm:
Pseudo-science is. |
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Title: Re: The case for renewables Post by RCommissionintoCuinternetNOW on Aug 2nd, 2015 at 5:44pm gizmo_2655 wrote on Aug 2nd, 2015 at 5:17pm:
Gizmo hates me long time ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D |
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Title: Re: The case for renewables Post by RCommissionintoCuinternetNOW on Aug 2nd, 2015 at 5:45pm lee wrote on Aug 2nd, 2015 at 5:21pm:
--> lee loves gizmo long time but gizmo love me more!!! :) |
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Title: Re: The case for renewables Post by lee on Aug 2nd, 2015 at 5:55pm
He's welcome to you.
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Title: Re: The case for renewables Post by gizmo_2655 on Aug 2nd, 2015 at 6:54pm lee wrote on Aug 2nd, 2015 at 5:55pm:
Oh hell NO!!!! :-X :-X :-X |
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