When the moon comes in front of the sun and covers it, the event is called a solar eclipse. While partial solar eclipses, where the moon partly obscures the sun are more common, a total solar eclipse is relatively rarer. 21 August 2017 will be the first opportunity for Americans to watch a total solar […]
guest
Or rather, change the wavelength of photons. We have access to the universe’s most powerful source of energy — the sun. In one hour, it radiates an astounding 173,000 terawatts of power, six times more than what the planet needs. If we can just tap into 16% of that, it’ll be enough to power the entire […]
ella
Introduction Solar power systems have improved to a huge extent over the years. The advent of monocrystalline solar cells have enabled small and inexpensive solar chargers that can be carried about just anywhere and charge small battery powered electronic devices. I’m glad that I got an opportunity from STIN to evaluate one of their little portable […]
sunit
Photovoltaic solar cells have their limits, and that’s directly related to the underlying semiconductor material. The scientists who discovered the limit back in 1961 named it after themselves, the “Shockley-Queisser (SQ) efficiency limit.” The not-so-favorable SQ prophecy basically states that single-junction silicon-based solar cells can convert no more than 33% of sunlight into working electricity. […]
ella