How much energy do we save when we use light energy from solar panels?

5 Responses to How much energy do we save when we use light energy from solar panels?

1. bada_bing2k4 says:

   January 15, 2010 at 11:53 am

   Tons & tons
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2. Amy says:

   January 15, 2010 at 12:36 pm

   If you use them to power an entire building, as much energy as the building itself would have used. It all depends on how many solar panels you have and the amount of light you need.

   The only energy that is not saved is the energy need to produce the solar panels and transport them to the location where they are installed.
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3. donfletcheryh says:

   January 15, 2010 at 1:17 pm

   Up to 80% of the energy collected will be saved. The energy input to create the panels, the circuitry, the mountings will come close to 30% of the total energy produced for most, and at least 20%.

   With prismatic separation of light to capture up to 60% OF INCIDENT light, we increase the energy cost of producing the panels, but not as much as we increase the output energy. These are not in commercial use yet.
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4. grizzbr1 says:

   January 15, 2010 at 1:51 pm

   Absolutely none, you are just getting it from a different source. Conserving will reduce energy use, solar panels will not.
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5. al canrell says:

   January 15, 2010 at 2:20 pm

   Technically you are still using the same amount of energy. Energy is never created or destroyed, it just changes forms. But you are getting it from a free source that does not pollute at all.
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