==Investment History==
{|border="2" cellspacing="0" cellpadding="4" width="100%"
|align = "center" bgcolor = "#000000" <font color="#000000">rowspan = "5"|'''Acquisitions'''</font>
|SE Forge
|align = "right"|October 2010
|-
|RE Power Systems
|align = "right"|December 2009
|-
|RE Power Systems AG
|align = "right"|June 2009
|-
|RE Power Systems AG
|align = "right"|June 2008
|-
|RE Power Systems AG
|align = "right"|June 2007
|-
|align = "center" bgcolor = "#000000" <font color="#000000">rowspan = "6"|'''Disinvestments'''</font>
|RE Power Systems
|align = "right"|August 2010
|-
|Swibi AG
|align = "right"|June 2010
|-
|Hansen Transmissions
|align = "right"|April 2009
|-
|Denker & Wulf AG-Quitzow Wind
|align = "right"|March 2009
|-
|Hansen Transmissions
|align = "right"|January 2009
|-
|SE Forge
|align = "right"|October 2008
|-
|align = "center" bgcolor = "#000000" <font color="#000000">rowspan = "3"|'''Subsidiary M&A'''</font>
|RE Power Systems AG acquired PROASEGO Wind park
|align = "right"|May 2010
|-
|RE Power Systems Swiz acquired stake in Wind farm Corleto Perticara
|align = "right"|August 2010
|-
|AE-Rotor Techniek of the Netherlands acquired Eve Holding NV, a manufacturer of wind turbines
|align = "right"|March 2006
|-
|}
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