A solar panel (also solar module, photovoltaic module or photovoltaic panel) is a packaged, connected assembly of photovoltaic cells. The solar panel can be used as a component of a larger photovoltaic system to generate and supply electricity in commercial and residential applications. Each panel is rated by its DC output power under standard test conditions, and typically ranges from 100 to 320 watts. The efficiency of a panel determines the area of a panel given the same rated output - an 8% efficient 230 watt panel will have twice the area of a 16% efficient 230 watt panel. Because a single solar panel can produce only a limited amount of power, most installations contain multiple panels. A photovoltaic system typically includes an array of solar panels, an inverter, and sometimes a battery and or solar tracker and interconnection wiring.
In a fantastic breakthrough in solar energy, scientists at the U.S. Department of Energy’s National Renewable Energy Laboratory (NREL) have devised solar cells using nanotechnology which have had a recorded efficiency as high as 18.2%. Now, this alone is far from being deemed impressive, considering the current most efficient solar cells are 35% plus. What [...]
Hey, guys! We’ve received some great feedback from our previous contest, when we offered an awesome DNA portrait to one of our readers. Naturally, we’d like to follow with yet another giveaway and hopefully turn this into a frequent feature on ZME Science. It’s the least we can do for all your generous support you’ve [...]
Trees employ a fractal structure of branches to twigs to spread a wide array of leaves for maximized sunlight collection. Similarly, chemists at University of California, Davis developed a set of microscopic “trees” made out of silver, which the researchers claim might well form the basis for a new range of highly efficient solar cells [...]
If you’re reading this post via e-mail or RSS, please visit the post’s page on the website to view the video interview. MIT researchers, guided by Andreas Mershin’s vision of a world fueled by cheap and renewable electricity, have recently published a paper in which they explain how photovoltaic panels made from plants can be [...]
Germany keeps setting a right example of how renewable energy should be treated by the authorities, as opposed to the US, for example. In Germany, one of the world’s leading countries in this field, 51% of all renewable energy is owned by citizens and farmers, who use it for themselves or even sell it back [...]
We’ve become so accustomed to the imagery of huge stacks of solar panel arrays stretching across the scorching desert, that the idea of implementing solar panels in some of the coldest spots on Earth might be quickly judged as feeble. In reality, Japanese scientists claim in a recently published study that the most energy efficient [...]
If harnessed at a much greater potential than it is now, sunlight might not only become the primary source of energy on the planet, but the cheapest too. In one hour the sun sprays our planet with enough energy to power all the electrical needs of the word for an entire YEAR. Now that’s something [...]
Dubbed MBE, after the intricate molecular beam epitaxy process, this device developed by scientists at Sharp Laboratories in Oxford, England, can actually grow electrical components at a dazzling precision atom by atom. This is where razor sharp technology is at, as far as manufacturing goes, and this monstrous-looking device is capable of transferring atoms from [...]
Japan shows us yet again that they are leading the world in terms of renewable energy, in taking a plan that would make solar panels mandatory for all buildings no later than 2030. The plan, expected to be unveiled at the upcoming G8 Summit in France, aims to show Japan’s resolve to encourage technological innovation [...]
Researchers at the University of Michigan have made a discovery that promises to revolutionize solar technology forever. Stephen Rand, a professor in the departments of Electrical Engineering and Computer Science, Physics and Applied Physics and William Fisher, a doctoral student at applied physics, discovered that light, when it is traveling at a certain intensity through [...]
It gives me great pleasure to see some points of view the governor of California has; here’s what he had to say about solar panels, simple and short: “Asking whether large solar power plants are appropriate in the Mojave desert is like wondering whether subways make sense in New York City.” This is hands down [...]
Wed, Oct 17, 2012
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