Engineering

Thin-film technologies for the energy transition

Glass facades characterize modern architecture. While solar radiation serves to support heating in winter, the building interior heats up in summer and requires active cooling. Smart windows can regulate the solar radiation ...

Energy & Green Tech

Rooftop solar cells can be a boon for water conservation too

Electricity-generating rooftop solar cells not only save on planet-warming carbon emissions, they also save a significant amount of water, say a pair of Duke University researchers who have done the math.

Engineering

Pixelization of solar panels to beautify building facades

Buildings consume around one-third of the world's energy and are responsible for 40% of greenhouse gas emissions. Reducing carbon emissions and using renewable clean energy in buildings are essential to achieve the goals ...

Energy & Green Tech

After climate bill passage, WVa natural gas plant unveiled

A Maryland company announced Friday it will build a natural gas power plant designed to capture climate-changing carbon in West Virginia. Officials said it was made possible by a recently signed law embraced by Democratic ...

Business

Samsung sets goal to attain 100% clean energy by 2050

Samsung Electronics is shifting away from fossil fuels and aiming to entirely power its global operations with clean electricity by 2050, a challenging goal that experts say could be hampered by South Korea's modest climate ...

Energy & Green Tech

Geothermal bubbles up as another way to fight climate change

Geothermal power currently provides only a tiny fraction of the nation's electricity. But as states ramp up their transitions to renewable electricity, some leaders see a big role for geothermal as a stable, renewable power ...

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Solar energy

Solar energy is the radiant light and heat from the Sun that has been harnessed by humans since ancient times using a range of ever-evolving technologies. Solar radiation along with secondary solar resources such as wind and wave power, hydroelectricity and biomass account for most of the available renewable energy on Earth. Only a minuscule fraction of the available solar energy is used.

Solar power provides electrical generation by means of heat engines or photovoltaics. Once converted, its uses are limited only by human ingenuity. A partial list of solar applications includes space heating and cooling through solar architecture, potable water via distillation and disinfection, daylighting, hot water, thermal energy for cooking, and high temperature process heat for industrial purposes.

Solar technologies are broadly characterized as either passive solar or active solar depending on the way they capture, convert and distribute sunlight. Active solar techniques include the use of photovoltaic panels and solar thermal collectors (with electrical or mechanical equipment) to convert sunlight into useful outputs. Passive solar techniques include orienting a building to the Sun, selecting materials with favorable thermal mass or light dispersing properties, and designing spaces that naturally circulate air.

This text uses material from Wikipedia, licensed under CC BY-SA