Elgar original reference
Edited by Hugh Dyer and Maria Julia Trombetta
Chapter 7: Securing energy supply II: diversification of energy sources and carriers
The world energy supply is largely based on fossil fuels: oil, gas and coal. Several scenarios for the future energy supply distribution have been made and reported by official institutions, such as the International Energy Agency. Depending on assumptions, a faster or slower growth of renewable energies is depicted. These pictures are overall scenarios for the world energy supply. However distinctions have to be made between global and local, centralized and decentralized systems. Moreover a distinction also has to be made between electricity supply and other forms of energy needed such as heat and transport fuel. It should also be kept in mind that there is a competition on fossil fuels for use as an energy source and for use as a bulk chemical in the chemical process industry. All these issues are relevant in the transition to a more sustainable energy system. However, in the process of restructuring the energy system the security of supply has top priority. It is rather like when renovating a shop the owner puts up a sign which says: “Business as usual during renovation”. In this chapter we will explore the renovation of the energy sector, what kind of innovations are taking place and can be expected, and how that could improve the security of supply, while taking into account issues of scale and different time horizons.
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