Herman Darnel Ibrahim born in 1954 in Payakumbuh West Sumatera. He got his First Degree in Electrical Engineering from Bandung Institute of Technology [ITB]; M.Sc. Degree in Electrical Power System Analysis from the University of Manchester, UK; and Doctor Degree in Technical Science from ITB Bandung. For 30 years until 2008, he worked with PLN, the State Electricity Corporation of Indonesia.  He achieved senior management position at the company as Director Transmission and Distribution [2003-2008] and Director of PT. Indonesia Power, a subsidiary of PLN [1998-2003]. 

Herman Darnel Ibrahim is the Advisor to AKLI, the Assosiation of Indonesian Electrical and Mechanical Contractors. In past 25 years he dedicates himself in energy and electricity activities. He is one of the Board Member of DEN, the Indonesian National Energy Council 2020-2025, and also serves as  Lecturer of Post Graduate Program at Faculty of Technology University Indonesia. He was Board Member of DEN, 2009-2014 and also was a Member of House of Regional Representative [Senate] 2014-2019.

AS an energy observer and expert he is still active as Advisory Board of Indonesian  Renewable  Energy  Society [IRES],  Indonesia Geothermal Association [INAGA], Indonesian Hydro Power Association [INAHA], and  as Expert Board of Indonesian Energy Conservation and Energy Efficiency Society [MASKEEI], Indonesian Power Society [MKI], Indonesian Engineers Association [PII], and Indonesian Solar Energy Association[AESI].

He is also active in International Organization, as Chairman of Indonesian National Committee of CIGRE [International Council of Large Electric Systems] since 2006, and as Vice President IGA,  International Geothermal Association [2013-2016].