Background and activities

I am an electrical engineer (specialisation on energy systems) and got my diploma and PhD in Germany working with energy storage, solar systems and integration of wind energy into the German market. I have also done studies for industry related to the optimal operation planning of power plant portfolios. From 2010 on, I worked as postdoc and researcher for NTNU and SINTEF Energy; mainly on energy systems, offshore wind, energy transmission, CO2-emissions, microgrids, electric/hydrogen vehicles, integration of renewables and hydro power scheduling.

Apparently, I am Associated Professor for Sustainable Electrical Energy at the Department of Electric Power Engineering and manager of NTNU Energy Team Solar

Short CV

  • from 2019: Associate Professor for Sustainable Electrical Energy at the Department of Electric Power Engineering (NTNU)
  • 2017-2019: Researcher at the Department of Electric Power Engineering (NTNU)
  • 2010-2017: Researcher in the group for Energy Systems at SINTEF Energy
    • worked in several groups: Active Power Grids, Market and Grid Analysis, System Dynamics
  • 2010-2012: Postdoc in the project NOWITECH at the Department of Electric Power Engineering (NTNU)
    • Balance Management with large scale offshore wind integration
  • 2004-2010: PhD at the Department of Energy Technology (University of Wuppertal)
    • Optimized operation management of wind energy plants by energy storage
  • 2003-2004: Research Assistant at the Department of Power Electronics and Electromagnetic compatibility (Chemnitz University of Technology)
  • 1998-2003: Master student in Electrical Engineering at the Department of Electrical Power Technology (Chemnitz University of Technology)
    • Model optimization of a universal storage system in ATP / EMTP


Research interests

  • energy system analysis
  • solar energy, wind power
  • energy storage (incl. electric cars)
  • hydrogen systems


I teach or have taught in the following courses

  • ET6205 - Fremtidens distribusjonsnett (EVU, NTNU)
  • IELET2118 - Electric Power Transmission and Distribution (BSc, NTNU)
  • TELE2005 - Elektriske lavspentinstallasjoner (BSc, NTNU)
  • TELE3013 - High Voltage Electric Power Generation and Distribution (BSc, NTNU)
  • TEP4225 - Energy and Environment (MSc, NTNU)
  • TET4105 - Power System Analysis 1 (MSc, NTNU)
  • TET4155 - Infrastructure for Energy Transmission and Distribution (MSc, NTNU)
  • TET4175 - Design and Operation of Smart Grid Power Systems (MSc, NTNU)
  • TET4850 - Experts in Teamwork - The Energy Challenge for a Sustainable Future (MSc, NTNU)
  • TET4853 - Experts in Teamwork - Solar in the Nordics (MSc, NTNU)
  • Energy economics (BSc, University of Wuppertal)
  • Energy conversion (MSc, University of Wuppertal)


Supervision of students

  • PhD
    • "Digital Solar Electricity - The Role of Machine Learning, Artificial Intelligence and Energy Optimization", Berhane Dimd
    • "A Central Fault Identification, Classification and Diagnosing Method for Small-Scale PV System: Data Driven Techniques", Tarikua Zenebe (co-supervisor)
    • "Long-term grid planning considering the electricity demand and flexibility potential of electric transport", Aurora Fosli Flataker (co-supervisor)
  • Master / Specialisation Project / Diploma
    • Design og konstruksjon av et mini-smarthus
    • Mobile hydrogen supply potentials for offshore fish farms
    • Design and installation of a mobile 2-axis solar tracking system
    • Utvikling av energiforsyningssystem for grunnskolen Eco Moyo i Kenya
    • Agrivoltaic System Design for Norwegian Conditions
  • Bachelor
    • Sustainable energy solutions for the country school on Skårøya
  • in addition, co-supervisor and examiner for several other works




Scientific, academic and artistic work

Displaying a selection of activities. See all publications in the database

Journal publications

Part of book/report



  • Arvesen, Anders; Völler, Steve; Hung, Christine Roxanne; Krey, Volker; Strømman, Anders Hammer; Korpås, Magnus. (2019) Emissions of electric vehicle charging in future scenarios: The effects of time of charging. SETAC Europe 29th Annual Meeting . Society of environmental toxicology and chemistry (SETAC); Helsinki. 2019-05-27 - 2019-05-30.
  • Völler, Steve. (2011) Balance Management with Large Scale Offshore Wind Integration. Deep Sea Offshore 2011 ; 2011-01-20 - 2011-01-21.
  • Völler, Steve; Doorman, Gerard L.. (2011) Changes in the Utilisation of the Norwegian Hydro Reservoir by Balancing the North Sea Offshore Wind. EWEA Offshore 2011 . EWEA; Amsterdam. 2011-11-28 - 2011-12-01.