Professor Doctor Klaus-Dieter Borchardt is a senior energy adviser with the European & Competition Law Practice Group in Baker McKenzie's Brussels office. He joined the Firm in 2020.

Klaus-Dieter worked for 33 years at the European Commission, including four years at the European Court of Justice. When he left the European Commission, he was deputy director-general for energy.

Klaus-Dieter is also an expert in EU law, having spent 12 years in the Commissions' Legal Service where he was responsible for state aid, internal markets and agriculture.

He has been a teaching professor at Bavarian Julius-Maximilians-University in Würzburg, Germany since 2001. He is also a senior research fellow at the Oxford Institute for Energy Studies (OIES) and an adjunct professor at the Copenhagen Business School (CBS). He is the author of a standard textbook on EU law and the co-editor of a commentary on the EU treaties.