Based on scenario and energy systems modeling, the talk provides a perspecitve on the requirements and challenges for the future energy system and the role of energy sources such as nuclear, bio, solar and wind and the growth and development of energy carriers such as electricity, hydrogen and hydro-carbons. The talk provides a first principles perspective on resource costs, sustainability and reliability and highlights the trade-offs that different energy resources provide. The central role of energy technology research and innovation is highlighted.
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