...

Filter by tags

Selected Tags


Questions, Articles and Polls

2 Likes · 1 Answer
A:
This is a matter of comparison. Modern single junction mass produced solar cells are about 18% efficient. This is a little more than half of the theoretical maximum efficiency for such devices. Multijunction cells could theoretically achieve ... more
2 Likes · 1 Answer
A:
Besides Solar cells you buy from us, you still need this for a solar panel., This is not a must, only a kind recomendation. Besides the most important cells and knowledge, you need the following tools and materials: • 1 900mm X 600mm sheet of ... more
2 Likes · 1 Answer
A:
Current commercially-viable solar panels simply are not capable of providing the current required to charge the in-pavement beacons, given the small surface area of the beacons and the power required to drive the ultra-bright LED beacons. The ... more
2 Likes · 1 Answer
A:
Individual solar cells are made of silicon wafers. Groups of solar cells are made into photovoltaic (PV) modules, commonly referred to as panels. ... more
0 Likes · 1 Answer
A:
Date: March 5, 2008 Source: Wired Science http://blog.wired.com/wiredscience/2008/03/inkjet-printed.html Yesterday, Konarka announced that they have demonstrated organic (made of carbon/plastic/oil based products versus silicon/inorganic products) ... more
1 Like · 1 Answer
A:
Photovoltaics or PV for short can be thought of as a direct current (DC) generator powered by the sun. When light photons of sufficient energy strike a solar cell, they knock electrons free in the silicon crystal structure forcing them through an ... more
2 Likes · 1 Answer
A:
The short answer is that it would take WAY too long to charge the batteries! For the long answer, I asked Bob Siebert, who installs solar electric systems, to run the detailed solar charger calculations. • Where's the glove compartment? There isn't ... more
2 Likes · 1 Answer
A:
Researchers have found that energy currently being lost from semiconductors in solar cells can be captured and transferred to electric circuits before cooling takes place. The discovery could result in the ability to build cheaper, more efficient ... more
2 Likes · 1 Answer
A:
No, solar photovoltaic (PV) cells are predicated on the fact that you can turn the sun's natural light into usable energy. ... more
2 Likes · 1 Answer
A:
This was selected as Best Answer Silicon-based solar cells require about "five 9's" purity (99.999% pure, or 10 ppm). For comparison, semiconductors require at least eight nine's purity (99.999999% pure, or 10 ppb). Interestingly, solar ... more
1
...