That's interesting it'll be based on renewable energy. Wind energy, perhaps, based upon the locations.

Apple® today announced a €1.7 billion plan to build and operate two data centres in Europe, each powered by 100 percent renewable energy. The facilities, located in County Galway, Ireland, and Denmark’s central Jutland, will power Apple’s online services including the iTunes Store®, App Store, iMessage®, Maps and Siri® for customers across Europe.

“We are grateful for Apple’s continued success in Europe and proud that our investment supports communities across the continent,” said Tim Cook, Apple’s CEO. “This significant new investment represents Apple’s biggest project in Europe to date. We’re thrilled to be expanding our operations, creating hundreds of local jobs and introducing some of our most advanced green building designs yet.”
Apple Invests $1.9 billion in European Data Centers In Ireland and Denmark [apple.com]