Cows graze under solar panels at Silicon Ranch's 3.5-MW solar farm in Rutherford County, Tennessee. (Photo courtesy Silicon Ranch)The conventional wisdom was wrong. And having helped spread the conventional wisdom, I was wrong, too. Mea culpa. It turns out sheep aren’t the only animals capable of handling the job of vegetation management on solar sites. Farmers are finding that cattle also thrive among solar panels – and they will get their cha…