New York Times:

The words are stenciled on the front of the Apple Store, a glass box sandwiched between a nondescript Thai restaurant and a CVS pharmacy in downtown Palo Alto: “This store runs on 100 percent renewable energy.”

If Apple’s plans play out, it will be able to make that claim not only for its operations throughout California but also beyond, as the company aims to meet its growing needs for electricity with green sources like solar, wind and hydroelectric power.

And:

The motives may be economic as much as they are environmental. As a wholesaler, Apple could reduce the cost of its electricity load, which reached 831 million kilowatt-hours in the last fiscal year — enough to power about 76,000 homes for a year. But like a growing number of corporations, Apple is intent on reducing carbon dioxide emissions from electricity production — one of the biggest sources of greenhouse gases that contribute to global warming.

If Apple can run all its operations, all of them, on 100 percent renewable energy, that would set the bar for all other companies. If one of the largest companies in the world can do this, you should do all you can to reach this level as well.