Graduate of the Faculty of Electricity at the Silesian University of Technology in Gliwice. He also completed postgraduate course in the field of electrical power engineering (Silesian University of Technology), microcomputer systems (Silesian University of Technology) and company management. Participant of Vattenfall Executive Management Program (training program for senior management at Vattenfall) in Stockholm.

Employment history: in the years 1970-1996 he worked at Zakład Energetyczny Gliwice, in the years 1996-2001 at Górnośląski Zakład Elektroenergetyczny S.A. as member of the Management Board in charge of technical matters and electricity trading, in the years 2001-2007 at Vattenfall Distribution S.A. as President of the Management Board, in the years 2002-2009 at Vattenfall Poland as member of the Board of Directors, in the years 2009-2011 at Vattenfall Europe AB as member of the Management Board, in the years 2008-2012 at TAURON Dystrybucja GZE S.A. as President of the Management Board, where he built a highly efficient, customer-oriented organization highly evaluated in Customer Satisfaction benchmark Index at Vattenfall and achieving high employee engagement ratios.

In the years 2012-2015 he was the President of the Management Board at TAURON Dystrybucja S.A. where, among other things, he was engaged in execution of several dozen projects for reorganization, restructuring, process optimization and IT systems implementation.

From October to December 2015 he was Vice President of the Management Board for Strategy and Development at TAURON Polska Energia S.A. From January to April 2016 he was Management Board Advisor at TAURON Polska Energia S.A., and from May 2016 to February 2017 he was executive director for asset management.

In the years 2017-2021 he was the President of the Management Board at Spółka Ciepłowniczo-Energetyczna Jaworzno III Sp. z o.o. and since 2022 he has been Management Board Advisor at Smart EPC Sp. z o.o.

Mr. Piotr Kołodziej meets the criteria of independence from the Issuer and entities significantly related to the Issuer listed in the Act of May 11, 2017 on statutory auditors, audit firms and public supervision, and has no real and significant connections with a shareholder holding at least 5 percent of the total number of votes at the Issuer's general meeting.