Engineering
Solar cells are a key feature of creating a sustainable energy ecosystem for the future. Existing solar arrays and cells can produce clean energy from the most abundant source in nature. But increasing their efficiencies ...
Jul 18, 2022
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Engineering
Researchers have imagined, designed, and tested an elegant lens device that can efficiently gather light from all angles and concentrate it at a fixed output position. These graded index optics also have applications in areas ...
Jun 27, 2022
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143
Engineering
Solar panel installation in cities requires setups tailored to the complex geometry of urban spaces that provide the most direct sunlight to each panel. Among the processes for designing the most efficient setup is shadow ...
Jun 21, 2022
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21
Energy & Green Tech
Less than a mile from a sea otter-filled estuary popular with kayakers sit row upon row of tall, steel white cabinets perched on low concrete platforms, the space between them crisscrossed with gravel paths. All is quiet, ...
Jun 15, 2022
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Engineering
Satellites equipped with remote sensing technology execute many critical national security missions, from detecting explosions to tracking sea ice, but until now it could take a team years to move from a concept to a deployable ...
Jun 8, 2022
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49
Energy & Green Tech
In the tropics, the deep sea is cold and the sea surface is very warm. That temperature difference can be harnessed and turned into electricity. If we can improve the technology, this method of producing power could be a ...
May 31, 2022
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35
Energy & Green Tech
When West Virginia Senator Joe Manchin stabbed President Joe Biden's Build Back Better Bill in the back, he also "signaled" his support for the energy modernization and environmental elements of the bill. Of course, earlier, ...
Jan 24, 2022
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5
Energy & Green Tech
A race is on in solar engineering to create almost impossibly-thin, flexible solar panels. Engineers imagine them used in mobile applications, from self-powered wearable devices and sensors to lightweight aircraft and electric ...
Dec 14, 2021
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662
Energy & Green Tech
Silflower was among native plants that blanketed the vast North American prairie until settlers developed farms and cities. Nowadays confined largely to roadsides and ditches, the long-stemmed cousin of the sunflower may ...
Nov 4, 2021
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4
Energy & Green Tech
Floating solar farms could help to protect lakes and reservoirs from some of the harms of climate change, a new study suggests.
Mar 24, 2021
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179
A photovoltaic array is a linked collection of photovoltaic modules, which are in turn made of multiple interconnected solar cells. The cells convert solar energy into direct current electricity via the photovoltaic effect. The power that one module can produce is seldom enough to meet requirements of a home or a business, so the modules are linked together to form an array. Most PV arrays use an inverter to convert the DC power produced by the modules into alternating current that can plug into the existing infrastructure to power lights, motors, and other loads. The modules in a PV array are usually first connected in series to obtain the desired voltage; the individual strings are then connected in parallel to allow the system to produce more current. Solar arrays are typically measured by the peak electrical power they produce, in watts, kilowatts, or even megawatts.
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