I think that solar power is a very efficient form of renewable energy. However, are there any by-products from solar power?
I can’t think of any.

Any suggestions would be appreciated. Thanks!

The process of solar cells can involve the use of toxic chemicals and the use of clean rooms and labour extensive process.

However one processed there are no by products however there is an small upkeep in maintaining it to get full efficiently.

Solar cells do have there limits. The highest energy coniverson for a solar cell is about 48% under lab conditions. However his will not be the same in the real world, as the year is made up of equal parts of day and night. With this in mind the energy that the cell would capture in a year from the sun is 24%. Then on top of that you have to account for the days it is over clouded, other factors that will effect the solar are the cleanness of its surface, the more dirty it is the less energy it can absorb from the sun, also the angle at which the sunlight strikes the cell will effect the %. But with all this in mind solar energy is worthwhile.