Walgreens, which made a notable push into rooftop solar power a few years ago, is back for another, even bigger round of deployments. The giant drugstore chain said it will put panels on 200 stores in California, Connecticut, Delaware, Massachusetts, New Jersey and New York, bringing the chain total to more than 350.

Walgreens said this would make it “the leading retailer in number of solar powered stores,” and as long as Walmart or Kohl’s doesn’t go on an installation rampage, that might very well be the case.