Solar Panels, Energy Conversion

No such things as temperature drop or less light, from an environmental point of view.

However, you'll feel better if you use the solar panels as shaders.

There could be an environmental impact if the solar panel areas were to have gigantic dimensions.

Thanks Francis, but not quite what I asked.

Since there is an energy transfer going on, would we expect ANY MEASURABLE drop in temperature in the immediately surrounding area, however slight? Theoretically?

I answered precisely to your question, yet I introduced a small bit of irony.

Again, there's no measurable drop in temperature due to the photovoltaic effect.

Even theoretically, that couldn't be.

Just think that your eyes are a photovoltaic converter. Do you think your brain would cool down because you look at a light source?