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solar tracking system
2012-02-02 05:10:00 I want the speification of a stepper motor that are capable of rotating 2 kg solar panel. And also pls mention the type of stepper motor to be used. reply soon pls!!!!
solar tracking system
2012-02-02 04:28:00 I gonna place my solar panel in 45 deg facing the sunrise, by using stepper motor i should do tat. my panel weighs 2 kg,what type of stepper motor should be used? pls mention the rating of tat motor. The stepper motor to be rotated 120 deg/day for 11 hours with step angle of 10.9 deg. which ratin sh
Solar Tracking System
2012-02-01 19:19:00 hi am doing project on solar tracking system based on stepper motor,microcontroller. I need stepper motor torque equation.I need information abt which stepper motor should be used to rotate the 2.2kg solar panel. reply me soon pls!
Charging Two 6 Volt Batteries from a 12 Volt Solar Panel
2012-01-31 23:01:00 I want to use a 12 volt 20 watt solar charger to charge two 6 v - 14 Ahr batteries. The circuit shown shows (I hope) charging the two 6 v batteries in series and pulling off the power from the batteries in parallel. Will the voltage across RL be 6 volts? The charge controller will prevent
24% Off a Sunforce 50042 50-Watt Pro-Series Amorphous Solar Panel
2012-01-30 09:00:00 List Price: $349.99Deal Price: $264.95You Save: $85.04 (24%)The Sunforce 50042 50-Watt Pro-Series Amorphous Solar Panel is ideal for cabins, recreational vehicles, remote power, back-up power, and 12-Volt battery charging. This panel comes with compatible wiring, accessories and a voltage tester to help you start producing up to 50 watts (3.3 amps) of clean, free power in all weather conditions.Expires Feb 15, 2012
Solar Collector
2012-01-27 22:19:00 What is meant by Heat Removal Factor (Fr) of a solar collector ? plx help
Solar Storm Fuels Stunning Auroras
2012-01-27 15:18:00 From CNET News: You couldn't ask for a better show for a night out in the elements. A time-lapse video shows the auroras produced by this week's solar radiation storm. Read the whole article
Solar Yacht Sails Around the World Powered by Nothing More than the Sun
2012-01-25 17:25:00 The World Future Energy Summit has recently finished in Abu Dhabi and for me one of the highlights was the Turanor, an impressive solar powered yacht designed and built by Planet Solar. It is the largest boat of its kind to ever sail and the first to ever circumnavigate the globe powered entirely by the sun. It steadily cruises at an average speed of five knots, but is capable of reaching more than double that on clear, calm, sunny days. The project was conceived by Raphaël Domjan of Switzerland as a method of demonstrating the possibilities that current solar technology holds for clean transportation. The yacht carries a huge rack of Lithium-Ion batteries capable of storing up to three . . . → Read More: Solar Yacht Sails Around the World Powered by Nothing More than the Sun
By: Jutia Group
Hati-hati! Ada Tumpahan Solar di Sekitar Jl Warung Buncit
2012-01-25 03:40:00 Tumpahan solar terlihat di sekitar Jalan Warung Buncit, Jaksel. Kebanyakan tumpahan solar ini ada di jalur bus TransJakarta, namun ada yang meluber ke jalur reguler dari arah Ragunan ke Mampang. Hati-hati melintas.
By: IT and Comm
Strongest solar storm since 2005 hitting Earth
2012-01-24 00:33:00 Strongest solar storm since 2005 hitting Earth WASHINGTON (AP) – The sun is bombarding Earth with radiation from the biggest solar storm in more than six years with more to come from the fast-moving eruption. The solar flare occurred at … Continue reading →
By: TexasFred's
Dubai Too Hot for Solar Panels?
2012-01-23 22:26:00 I am shocked by these comments from this article, dust and sand I understand but heat affecting their efficiency? But on this point Iannelli is not convinced: "At the moment, solar panels are not fit for purpose in the UAE ... the dust and the sand in the atmosphere prevent (sun) rays from hitting
When Will a Cell Phone Run on Solar Power?
2012-01-18 13:23:00 Will solar-powered phones ever go mainstream? Could a cellphone run entirely on sunlight? How easy is it to charge a cellphone using sunlight? What are the biggest technical challenges impeding such developments? The preceding article is a "sneak peek" from Electronic Product Design, a newsletter f
Solar Roofs
2012-01-13 19:24:00 How do PV solar panels (with their batteries and inverter systems), compare with "hot water thermal" panels (with 1 pump and 1 storrage container)? PV panels can not be used to heat water for "thermal radiant in-floor or under floor heating systems. Which one is more efficient? Do you need both kind
Solar Powered & Retro Styled Toyota 2000GT SEV Sounds Crazy, Sparks Interes
2012-01-13 18:46:00 The Toyota 2000GT SEV is a one-off, electric concept car being shown to the public at the 2012 Tokyo Auto Salon. Designed by the Crazy Car Project under the direction of the Toyota Automobile Association, this ?shocking? automotive update takes Toyota's iconic late-sixties sports coupe from flower power to solar power.
29% Off a Sunforce 80-Watt High-Efficiency Polycrystalline Solar Panel
2012-01-09 09:00:00 List Price: $699.99Deal Price: $499.95You Save: $200.04 (29%)The Sunforce 39810 80-Watt High-Efficiency Polycrystalline Solar Panel Module provides the power you need, while helping you save money and protect the environment. This panel is ideal for homes, cabins, remote power, back-up power, and 12-Volt battery charging. This panel comes with compatible wiring, accessories and a voltage tester to help you start producing up to 80 watts of clean, free power in all weather conditions.Expires Jan 25, 2012
Solar Operated Pump
2012-01-09 01:13:00 Researching this I found every pump is powered by solar panels electricity. I have not found anything describing this concept. All it takes , a barabolic mirror, a container that expands only in the Y direction. Think of 2 coke cans with top cut off so that the bottoms form closed top and bottom.
Awas! Ada Tumpahan Solar di Lingkaran Semanggi
2012-01-08 23:19:00 Polisi memberi informasi ada tumpahan solar di Lingkaran Semanggi di Gatot Subroto ke arah Bendungan Hilir, Jakarta. Bagi Anda yang hendak melintas di kawasan tersebut, sebaiknya berhati-hati.
By: IT and Comm
SOPW solar 64 mill financing
2012-01-05 13:28:00 January 05, 2012 06:00 AM Eastern Time SPI Solar Secures $64 Million in Project Financing Initial tranche includes $44 million from China Development Bank to fund construction of large-scale projects in New Jersey ROSEVILLE, Calif.--(BUSINESS WIRE)--SPI Solar (“SPI”) (OTCBB:SOPW) a leading vertically integrated photovoltaic (“PV”) solar developer, today announced that it has secured construction finance facilities totaling $44 million from China Development Bank (“CDB”) to fund construction of solar energy facility (“SEF”) projects it is working on jointly with KDC Solar in New Jersey. Separately, LDK Solar (“LDK”) secured financing facilities of $20 million for two projects it is developing through Engineering, Construction and Procurement contracts with SPI in California. The LDK finance facilities will be used to fund construction costs of the California SEFs. “Our successful relationship with CDB is a direct result of our close working relationship with LDK” In June 201...
Horoscope: Solar Eclipse May 20, 2012
2012-01-01 19:56:00 Pictured: William McKinley campaign poster, Prosperity at Home Prestige Abroad, a Jupiter-Saturn slogan with tones of Cancer-Sagittarius inspiring a Moon-Jupiter sparkle of fairy dust.May 20, 2012 Solar Eclipse 'eclipses' Fixed Star Alcyoneby Jude CowellBelow is a horoscope of the May 20, 2012 Solar Eclipse @00Gem21 in the 14 South Saros Series(details below)--at 7:46:58 pm edt, White House, with Venus 23Gem25 Rx and out-of-bounds of the earthly plane with OOBs being an indicator of unusual success--and/or lawless actions. This is a South Node eclipse so energy tends to leave the scene rather than gather and 00Gem21 falls in 7th house in Washington DC denoting the beginning of new phases in Partnerships, Open Enemies, and/or Legal Affairs.However, since all eclipses operate as 'wild cards of the Universe', the chance for unexpected happenings in these areas should not be dismissed too readily.With its themes of Complex Financial Issues, Martian Actions, and Transport Concerns, p...
What is Cost for Solar Panel for 24 Volt Battery 100 Amp
2011-12-31 05:05:00 What is the cost for a solar panel, 24 volt battery 100 amp. I am having a APC 750 watt sine wave inverter. It will charge battery from AC Power. If I want to charge the battery from a solar panel, what will the cost of solar panel in the Indian market ?
Solar Breakthrough: Cheap Quantum Dot Solar Paint
2011-12-30 18:00:00 Researchers have reduced the preparation time of quantum dot solar cells to less than an hour by changing the form to a one-coat quantum dot solar paint. How? Titanium dioxide (TiO2) nanoparticles are coated with cadmium sulfide (CdS) or cadmium selenide (CdSe.) The composite nanoparticles, when mixed with a solvent, form a paste that can be applied as one-step paint to a transparent conducting material, which creates electricity when exposed to light. Although the paint form is currently about five times less efficient than the highest recorded efficiency for the multifilm form, the researchers predict that its efficiency can be improved, which could lead to a simple and economically viable way to prepare solar cells. . . . → Read More: Solar Breakthrough: Cheap Quantum Dot Solar Paint
By: Jutia Group
Germany's Solar Power Output Up 60% in 2011
2011-12-29 21:10:00 From Latest Items from TreeHugger: As for renewable energy in general, roughly 20% of all energy produced in Germany now comes from renewable sources. Read the whole article
P V panels vs. passive solar heating
2011-12-27 20:54:00 can any of the elect power from P V panels be used to heat the home in the winter? or will any heating devices draw too much power.?
Paint Your House, Get Solar Power
2011-12-27 16:12:00 From Discovery News - Top Stories: A new paint called Sun-Believable harnesses solar energy for electricity to power your home. Read the whole article
DIY Solar Panels Head to Africa
2011-12-24 15:12:00 From BBC News - Science & Environment: In a north London suburban street there is an unassuming wooden door which leads into a garage-cum-workshop which at first glance is remarkable only for a drum kit at one end. A second glance reveals a bunch of solar panels stacked against the wa
Solar Cell ( Photovoltaic Cell)
2011-12-24 08:18:00 What is the life capacity and cost of the Single Solar Cell? What are the elements present in Solar cell? How to manufacture the solar cell?
Solar Term - winter solstice day
2011-12-22 19:35:00 Winter solstice day (Dong Zhi). It is the mid-winter, after this solar term, the winter has gone a half, the spring will come back. Customs - Not writting 2010 Winter Solstice day is on Dec 22th. 2011 Winter Solstice day is on Dec 22th. 24 Solar Terms: Solar Term - start of spring day Solar Term - rain water day Solar ...
Solar Power: The Best of Times and Worst of Times
2011-12-21 15:30:00 Nothing spoils good news like a bad argument. So it goes for the solar industry, as excitement for technology advancements may be stifled by trade conflict between the U.S. and China. The solar industry has seen a continuing reduction in solar energy costs and a resulting increase in solar photo
Another One Bites The Dust: BP Solar Shuts Down
2011-12-21 14:42:00 From CNET News: Solar industry consolidation continues as industry pioneer BP Solar closes down due to rapidly falling solar panel prices. Read the whole article
Scientists Create First Solar Cell With Over 100% Quantum Efficiency
2011-12-19 16:49:00 From Engadget: Researchers over at the National Renewable Energy Lab have reportedly made the first solar cell with an external quantum efficiency over 100 percent. Quantum efficiency relates to the number of electrons-per-second flowing in a solar cell circuit, divided by the number of
Sunforce 60-Watt Solar Charging Kit
2011-12-17 09:00:00 List Price: $599.99Deal Price: $236.95You Save: $363.04 (61%)The Sunforce 50048 60-Watt Solar Charging Kit gives you several more reasons to love the sun. It provides the power you need, while helping you save money and protect the environment. This kit is ideal for cabins, recreational vehicles, remote power, back-up power, and 12-volt battery charging. It comes with everything you need to start producing up to 60 Watts/4 Amps of clean, free power in all weather conditions.Expires Jan 1, 2012
Solar Walk, paseo por el Sistema Solar
2011-12-14 17:23:00 Se trata de una aplicación para iPhone e iPad que permite hacer un recorrido por el Sistema Solar utilizando la tecnología propia de la televisión en 3D. No sólo podrás descubrir los detalles de todos los planetas y satélites que se mueven bajo la batuta del Sol, sino que lo vas a poder hacer desde ...
By: Disquisiciones
India Embraces Solar Power, Says Price Will Equal Thermal Power in Five Yea
2011-12-14 16:29:00 Economic South Asian superpower India has firmly embraced solar power, advancing the target date by five years for selling solar-generated electricity at the same rate as electricity generated by fossil fuel plants, from 2022 to 2017. According to government officials, the reason for moving the date forward is plummeting tariffs in the latest solar development projects, a trend that they believe is likely to continue. Ministry of New and Renewable Energy Joint Secretary Tarun Kapoor said, "The prices will come down further next year and will continue to fall. Earlier, our aim was that solar power will achieve grid-parity by 2022, but looking at the upbeat response from the industry, we have now reduced our target to 2017. . . . → Read More: India Embraces Solar Power, Says Price Will Equal Thermal Power in Five Years
By: Jutia Group
Free Segue to Solar magnet
2011-12-13 02:19:00 http://seguetosolar.com/index.h-tml#magcard -Email info@seguetosolar.com to request one Free Stuff Times . C om feed should only be reâd in feed readers, on the ©Freètuff Times ©e mail list, or the © FST Google Gadget. Any other| use| is |©opyright infringement and should be reported.©©©
By: Free Stuff Times
Save up to 45% off on Casio Men's PRW5100G-4 Pro-Trek Tough Solar Atomic An
2011-12-10 09:00:00 List Price: $500.00Deal Price: $275.00You Save: $225.00 (45%)Save up to 45% off on the Casio Men's PRW5100G-4 Pro-Trek Tough Solar Atomic Analog-Digital Watch. A burly watch with a decidedly masculine presentation, this Casio has a lot to offer. This watch kicks off with a round 46.8mm resin case with a stationary resin bezel and pushers all around the dial. A flurry of function for the adventurer at heart, this watch is stylish and utilitarian.Expires Dec 25, 2011
Solar Term - major snow day
2011-12-07 19:34:00 Major snow day (Da Xue), the amount of snowfall become more and more, the snowstorm comes, always snowing heavily. Customs - Not writting 2010 Major Snow day is on Dec 7th. 2011 Major Snow day is on Dec 7th. 24 Solar Terms: Solar Term - start of spring day Solar Term - rain water day Solar Term - awakening of insects ...
Australia Going Solar ? Gonna Cost Ya, Mate
2011-12-06 14:43:00 Green activists, take note – for Australia fully to embrace solar power, Canberra would have to spend $100 billion, with photovoltaic cells to generate the electricity covering an area twice the size of Sydney in order to replace Australia’s indigenous inexpensive coal-fired power plants with renewable energy sources. This is not an insignificant figure, as Australian coal currently generates 80 percent of Australia’s electrical energy output. The grim statistic was contained in the recent report, "Keeping the Home Fires Burning," issued by the Australian Strategic Policy Institute. So, who is the Australian Strategic Policy Institute? Tree-hugging, wallaby and kangaroo friendly ecological leftists or energy company flacks? Uh, no. According to the Australian Strategic Policy Institute . . . → Read More: Australia Going Solar – Gonna Cost Ya, Mate
By: Jutia Group
Solar Collector
2011-12-04 10:34:00 In this part of the world, although it is 1 Degree North, though the sky is bright for many hours , it is cloudly most of the time. I have read that solar collector is not effective with diffused light, therefore using parabolic solar collector for solar power generation is a bad idea. Any one has
Did Solyndra Set the Solar Industry Back?
2011-11-21 15:09:00 The Solyndra failure and subsequent scandal stirred up plenty of headlines. But did it do damage to the solar power industry? Or did it actually help? Some say that Solyndra failed precisely because solar panels have become more affordable, meaning Solyndra's product was overpriced by comparison. Di
How Do I Size a Solar Thermal Collector Storage Battery
2011-11-09 15:40:00 I have a solar thermal collector that I want to power with a PV panel. I want to store the output of the panel in a battery for 24/7 use over a 5 day cloudy period. How large a battery do I need? This will be a closed system controlling only the thermal collector and the underground heat storage. Th
Solar Cell Deteriorates When Exposed to Air
2011-11-09 05:05:00 As I have read about solar panels, the solar cells will deteriorate in time if exposed to air. I know that they encapsulate them in a plastic film called EVA. If you were to place a solar cell inside a thermopane window would the cell last. They are not exposed to air or the elements. Tks. John
Need Help Finding the Max Wind Speed a Solar Dish has to Withstand
2011-11-08 11:27:00 Hello all.. Am analysing the design of solar parabolic dish concentrator. Wind speed is the imp. factor one has to keep in mind while designing one. The query is that what is the max. wind speed the solar dish has to withstand against?? The conditions in selecting the max. wind speed is: 1. Loca
Solar Evaporation Ponds
2011-11-05 08:15:00 Kindly give links or information regarding solar evaporation ponds design for RO reject water of TDS 15000-25000ppm.Any guidelines regarding same
SMART SWIMMING GOGGLES
2011-11-04 08:24:00 Designer Joh Minhoo offers swimmers the opportunity to track their speed and pace thanks to his LCD-integrated swimming goggles. The concept is also designed with solar energy in mind, as sensors allow it to recharge when exposed to sunlight. Impressive!
Free Solar-Powered TV Sets Bring Programs to China's Western Nomads
2011-11-03 05:01:00 Thousands of solar-powered TV sets complete with solar panels, batteries and satellite receivers have been donated to ethnic herdsman in northwest China's Xinjiang Uygur Autonomous Region. Nomads who've never even seen a TV before can now enjoy 51 channels of programming.
The Coolest Solar Manufacturing Technology You?ve Never Heard Of: The Optic
2011-11-02 02:07:00 Via Scoop.it – News for Greens by Sean Pool and Lauren Simenauer, in a Science Progress cross-post Too often, when talking about research and innovation on clean energy technologies, policymakers, pundits, and the media tend to assume that the biggest breakthrough will come from…Show original Tags: cross post, optical cavity, manufacturing technology, science progress, clean ...
By: News for Greens
Solar Energy Companies Worldwide Threatened by Cuts in Government Subsidies
2011-10-28 21:23:00 In any country, at the end of the proverbial day, both energy utilities and consumers are finally interested in the technologies that generate a kilowatt of electricity most inexpensively, all other considerations aside. Accordingly, all countries involved in solar energy are optimists, but nascent industrial efforts to generate power on a commercial scale from the sun are without exception dependent upon current government subsidies to enter the market, which is littered with optimism, the failure of U.S. federally subsidized company Solyndra being Exhibit A. But countries worldwide are seeking government support to shield their embryonic solar industries from market realities until conditions improve, and few countries are more caught between the realities of the "free market" and national priorities . . . → Read More: Solar Energy Companies Worldwide Threatened by Cuts in Government Subsidies
By: Jutia Group
Strange Solar Storm Sparks Northern Lights
2011-10-27 20:59:00 From Discovery News - Top Stories: A baffling solar storm pulled colorful northern lights unusually far south, surprising space weather experts and treating skywatchers to a rare and spectacular treat. Read the full article here
Solar Efficiency Mapping for Roofs
2011-10-27 19:58:00 = Solar Efficiency Mapping for Roofs = (Image Credit: University of Gothenburg) Solar cells are being more commonly utilized in both commercial and industrial structures as a means to reduce energy costs. However, not all buildings in a site are created equal in terms of solar panel suitabil |
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