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By Barbara Lewis

BRUSSELS, Sept 27 (Reuters) - Installed EU wind capacity has reached the 100 gigawatt mark - the equivalent of power generated from 39 nuclear plants or a train of coal stretching from Buenos Aires to Brussels - but financial risk threatens growth, industry body EWEA said.

"We have just in the past couple of weeks passed 100 gigawatts of total installed capacity in Europe," Christian Kjaer, CEO of the European Wind Energy Association, told a small group of reporters.