IDK man the summary seems to disagree on the mains

A North Carolina town rejected the further installation of solar panels; some residents registered fears that the panels would disrupt the local ecosystem, while many others worried property values would be affected.

I saw what you are referring to, and I'm choosing to believe (to save my braincells, I know its probably wrong) that she was worried about products used in cleaning the panels or ground leaching of chemicals used in the maintenance or manufacture of the panels.