Category talk:Photovoltaic: Difference between revisions

Latest revision as of 17:01, 10 January 2007

First edits[edit source]

A PV cell is made up of silicon, boron and phosphorus that is just an example. The silicon is a semi-conductive element that gets "excited" when struck by sunlight. There are no moving parts, merely reactions, which produce an internally effected electric voltage and externally effected current that is carried through wires within the cell to an electrical circuit. The boron and phosphorus are added to the outside doped (internal not external) of the silicon to act as positive and negative chargesto create an abundance of holes or electrons. These doped layers, while alone are electrically neutral, create a voltage difference in the depletion zone as the holes and electrons migrate across the contact surface.

history page[edit source]

Check out the history tab for the category page and compare your last edit to my most recent edit to see all the changes. I made many small changes without using the bold and italic text to note it.

Long Page[edit source]

This is a long one... with lots of information, especially for a category page. What about moving it to a regular page, and splitting it up into seperate pages so that we can add product reviews, external links, etc. to each of the elements... nice graphics. Ericblazek 08:55, 10 January 2007 (PST)

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-==Some Debate on the Pro's of PV==
+== First edits ==
- PV energy is a completely clean, inexhaustible source of electricity that does not require
- the extraction or consumption of fossil fuels. Photovoltaic modules are extremely safe and
- reliable products, with minimal failure rates and projected service lifetimes of 20 to 30 years.
+A PV cell is made up of silicon, boron and phosphorus '''that is just an example'''.   The silicon is a semi-conductive element that gets "excited" when struck by sunlight.  There are no moving parts, merely reactions, which produce an '''internally effected''' electric voltage and '''externally effected''' current that is carried through wires within the cell to an electrical circuit.  The boron and phosphorus are added to the outside '''doped (internal not external)''' of the silicon to act as positive and negative charges'''to create an abundance of holes or electrons.  These doped layers, while alone are electrically neutral, create a voltage difference in the depletion zone as the holes and electrons migrate across the contact surface.'''
-Solar energy is a fairly inexhaustible soure of energy, but that does not necessarily translate to PV being the same.  PV systems
+== history page ==
-*Expensive- Very high initial cost.  System components are expensive to replace.
-*High Tech- Require a skilled labor force for proper operation and maintenance.
+Check out the history tab for the category page and compare your last edit to my most recent edit to see all the changes.  I made many small changes without using the bold and italic text to note it.
-*High energy cost- Require much energy to produce (although not more then they will eventual produce themselves, contrary to some rumors)
-*Production Pollution- Fossil fuels are extensively utilized to extract, produce and transport PV panels.  These processes also entail corresponding sources of pollution.
+== Long Page ==
+This is a long one... with lots of information, especially for a category page.  What about moving it to a regular page, and splitting it up into seperate pages so that we can add product reviews, external links, etc. to each of the elements...  nice graphics.
+[[User:Ericblazek|Ericblazek]] 08:55, 10 January 2007 (PST)