EU leaders want Energy Union: but what do they mean?

EU leaders agreed on Thursday (19 March) to construct an “Energy Union”, but it’s a fluid concept loosely defined by whoever happens to be speaking about it at the time.

The term has been part of EU lingo for less than a year, coming into the Brussels consciousness via Donald Tusk, who, as Polish prime minister, suggested member states coordinate their purchasing of natural gas, largely supplied by Russia.

“Europe should confront Russia’s monopolistic position with a single Europe...