tag:blogger.com,1999:blog-2171175265245997391.post924704072408792649..comments2024-03-02T23:32:19.314+13:00Comments on Seemorerocks: The downside of solar energyseemorerockshttp://www.blogger.com/profile/09638172074263860001noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-2171175265245997391.post-90972094438097574802019-02-23T18:03:32.775+13:002019-02-23T18:03:32.775+13:00Thanks for putting your best efforts and giving su...Thanks for putting your best efforts and giving such informative post.<br /><a href="https://www.universalsolardirect.com/" rel="nofollow">Solar Power For Homes</a><br /><a href="https://www.universalsolardirect.com/" rel="nofollow">Solar Las Vegas</a><br />Anonymoushttps://www.blogger.com/profile/01271885437308801139noreply@blogger.comtag:blogger.com,1999:blog-2171175265245997391.post-54821444494533031692015-11-12T21:35:56.142+13:002015-11-12T21:35:56.142+13:00That was before we knew about rapid climate change... That was before we knew about rapid climate change and multitudinous positive feedbacks. <a href="http://energyinstalls.co.uk/" rel="nofollow">solar installers bristol</a>Richard C. Lamberthttps://www.blogger.com/profile/14766504022599651016noreply@blogger.comtag:blogger.com,1999:blog-2171175265245997391.post-47435115741940436322014-08-24T08:26:08.600+12:002014-08-24T08:26:08.600+12:00Green Energy Illusions.
► Solar Panels.
Prof. Ji...Green Energy Illusions.<br /><br />► Solar Panels.<br /><br />Prof. Jian Shuisheng of the Jiatong-University estimates the production of just 6 solar panels requires one ton of coal. This works out to about 660 lbs of coal per square yard of solar panel. This is because the silicon has to be baked at 2,000°F. One company cut down 5 acres of woodland to install solar panels to manufacture plastic bags.<br /><br />The manufacture of solar panels lets off some of the deadliest greenhouse gases known to humankind. These include hexafluoroethane (12,000 times stronger than CO2), nitrogen trifluoride (17,000 times stronger than C02), and sulfur hexafluoride (23,000 times stronger than C02). Solar manufacturing plants produce 500 tons of hazardous sludge each per year. This sludge is never included in the solar industry carbon footprint data. Chinese solar waste disposal firms have been witnessed dumping this waste behind school yards.<br /><br />Five kilograms of hydrogen chloride per square meter of solar panel is used to liquefy the metallic silicon. Silicon carbide is used to cut the silicon into wafers. Cadmium telluride panels, or emerging thin film technologies, utilize untested nanomaterials that pose a threat to the environment and workers during the manufacturing and recycling stage.<br /><br />Dust, humidity, haze, and even heat dramatically affect solar panel output. Solar panels lose up to 1% of their efficiency each year lasting some 20 - 30 years, after which they become toxic waste, containing things like cadmium and other heavy metals. While the cost of the silicon wafers are dropping, they only make up 20% of the installed costs. The expensive power inverters solar panels require break down every 5-10 years and have to be replaced.<br /><br />► Wind Turbines.<br /><br />The manufacture of 5, one-megawatt, wind turbines produces 1 ton of radioactive residue and 75 tons of hazardous waste water used to extract and process the needed neodymium. Neodymium is a rare earth mineral. Rare earth minerals are not rare, but they are found in very low concentrations. Neodymium is extracted from crushed rocks using sulfuric acid, hydrochloric acid and sodium hydroxide. Then it is processed using solvents, heating and vacuum techniques that require plenty of coal power. Vast unregulated tailings ponds of poisonous water have destroyed whole villages in China.<br /><br />There are 16 other rare elements. All with the same story.<br /><br />There is no known replacement for neodymium. During its mining, metals such as arsenic, barium, copper, aluminum, lead and beryllium are released into the air and water, and are toxic to human health. Neodymium is only one of many rare-earth metals that our smart phones and green energy systems need.<br /><br />Wind turbines only produce 25% of their rated power output over 90% of the time. This means that fossil fuel plants have to burn fuel on standby in case the wind suddenly drops. Since this power is intermittent, we would need at least ten times as much solar-wind power to displace one unit of fossil fuel power. <br /><br /><br />It is possible to build wind turbines without rare earth elements, but doing so increases the complexity, decreases reliability, and jacks the generator weight up, which in turn means all the support structures have to be more massive, all of which results in higher cost.<br /><br />► Rechargeable Batteries.<br /><br />The rechargeable lithium ion batteries we use in everything from the Tesla Electric Car, and Prius Plug-In Car, down to our smart phones, all rely on one critical component―graphite. Graphite is one of the main causes of the terrible air pollution in China. It comes from airborne particles given off by mining operations and washes down from the sky with the rain. Graphite particles foul the air and water; they also damage crops and human lung tissue. This type of smog has gotten so bad that China has shut down several of their graphite mines, creating a shortage and higher prices. Even the mining operations for the newer liquid metal or molten salt batteries for 100% “green” energy would poison the biosphere.Robert Callaghanhttps://www.blogger.com/profile/11211882347789815165noreply@blogger.com