The agreement thrashed out among EU leaders in Brussels promises
"solidarity" in the event of an energy supply crisis - something
Poland was looking for, and, in wording important for Czechs, Slovaks and
Hungarians noted that "nuclear energy meets growing concerns about
safety of supply." It also allowed some wriggle room when it came to
meeting the 20 percent target for renewable energy saying "this
should take account of different national starting points."