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
31 March 2010 has increased their holding of Vestas shares from 10,036,082 (ref.
company announcement No. 12/2010 of 26 March 2010) to 10,196,683 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