Major shareholder announcement - BlackRock, Inc.

Vestas has received information from BlackRock Investment Management (UK)       
Limited, 33 King William Street, London EC4R 9AS, UK that BlackRock, Inc. as per
22 March 2010 has increased their holding of Vestas shares from 10,073,700 (ref.
company announcement No. 9/2010 of 23 March 2010) to 10,199,332 shares (5.01 per
cent).                                                                          


Contact details:                                                                
Vestas Wind Systems A/S, Denmark                                                
Peter W Kruse, Senior Vice President, Group Communications                      
Telephone +45 9730 0000