On average, how much energy does it take to produce 1 watt of photovoltaic material?
I'm wondering how long a given solar panel needs to produce before it "makes up for" the energy used in it's creation. How much energy does it take to make a 1 watt solar panel?
I realize there are many different manufacturing methods, but I'm looking for a ballpark figure for the most common types of photovoltaics in widespread use today.
The following from the National Renewable Energy Labs will help.
http://www.nrel.gov/docs/fy99osti/24619.pdf
http://www.nrel.gov/docs/fy04osti/35489.pdf
The paper is somewhat dated, the payback time is less with current technology. Lowest energy input would likely be a thin-film manufacturing process such as employed by First Solar.
How To Build A Cheap Solar Panel In 1 Hour FREE Electricity For Your Home
[simpleaffiliate source="amazon" results="5"]how to make photovoltaic panels[/simpleaffiliate]
[simpleaffiliate source="clickbank" results="3"]how to make photovoltaic panels[/simpleaffiliate]
No comments:
Post a Comment