Category Archives: photovoltaic solar energy

i’m applying for mech engineering but should i stay with physics? i’d like to do something good for the environment and solar energy seems like it would be a big help; do you know who’s working on this in the … Continue reading →

Fameena, the minimum energy to create the effect is simply one photon. The photovoltiac effect occurs when photons from the sun strike the two layers of silicone, each photon breaks one electron off of one layer and forces it onto … Continue reading →

The two methods are – focusing sunlight onto a liquid that is heated and used to turn water into steam to drive the turbines – photovoltaic cell (layers of silicon to generate electricity) I am sure that the photovoltaic panels … Continue reading →

Has NASA developed any such aerobot for missions in Space or other planets? yes,solar energy can be harness in a space mission but the photoradiation about which are talking is very weak so it is can become as main fuel … Continue reading →

In a sunny location, sunlight has a power density of about 1 kW/m2. Photovoltaic solar cells can convert this power into electricity with 15% efficiency. If a typical home uses 390 kWh of electricity per month, how many square meters … Continue reading →

If there were many reflecting mirrors to double and triple the light received by photovoltaic cells, would that increase their efficiency? This question is worth a look because while it’s true that solar cell panels have a relatively low photovoltaic … Continue reading →

why don’t we put huge solar panal up in space and send the energy back down to earth . may be everything could be powered from that no more ned for oil, coal etc It’s called space-based solar power, and … Continue reading →

Looking for web-sites or mail order companies (within the U.S. or Canada) that supply Photovoltaic Modules (Solar Panels), Wind Turbines, Battery Banks to store the energy, and inverters to convert the energy for home use. Also if anyone has any … Continue reading →

If we used only hydrelectric, wind, photovoltaic solar, geothermal, we could virtually eliminate burning the solar energy that was stored millions of years ago in the form of oil. It would take some forward thinking and strong willed people to … Continue reading →

So I watched this video by Ray Kurzweil: http://www.ted.com/talks/ray_kurzweil_announces_singularity_university.html At 5:38 he shows a graph of Photovoltaic Production. The graph shows an approximate doubling of photovoltaic use every two years. I thought this was interesting. I’m sure cost was a … Continue reading →