Abstract
In the final version of the Climate and Energy Strategy, the Austrian Federal Government postulated an ambitious target for the domestic expansion of renewable energy sources (RES) in June 2018: The goal is to generate electricity by 2030 to the extent that the national total electricity consumption is covered 100% (at a yearly balance) from renewable energy sources. This chapter provides information on how the transformation to an Austrian electricity system based almost exclusively on renewable energy generation can function and look like from a technical and economic point of view. Apart from that, we shed light on some of the requirements to and impacts of achieving this transition: On the one hand, a comprehensive economic reassessment of the expansion of renewable electricity supply in Austria by 2030 and the corresponding investment and support expenditures is presented. Apart from economic impacts, we also shed light on the impacts concerning supply security that come along with the strong uptake of renewables, specifically due to the massive expansion of volatile electricity generation from variable renewables like wind, solar and run-of-river hydropower. In conclusion, it should be noted that although the #mission2030 goal for the expansion of renewable energies appears extremely ambitious, it can nevertheless be classifiable as feasible. Massive investments in renewable technologies would occur, causing only a moderate increase in electricity prices since support expenditures would remain at a politically and socially acceptable level. Concerning supply security, it can be stated that expected increase in consumption due to the development of new consumption poses major challenges for the entire energy system. The model analysis shows that these are however manageable, but it requires considerable effort and proactive action. Rapid political action is consequently needed in order to be able to follow the ambitious path in a timely manner so that the planned increases in the generation stock as well as in necessary flexibility provision are available both in the early years after 2020 and later.
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Notes
- 1.
The authors gratefully acknowledge the financial and intellectual support provided by Oesterreichs Energie. For details on both studies we refer to https://oesterreichsenergie.at/the-world-of-electricity.html.
- 2.
According to the Austrian Climate and Energy Strategy #mission2030 of June 2018 balancing and balancing energy, flexibility necessary for operation of the network as well as the provision of guaranteed power shall continue to be provided in accordance with the technical and economic feasibility to ensure security of supply will be provided. Consequently, balancing and balancing energy to stabilize grid operation should not be included in the calculation of the 100% renewable electricity supply. Furthermore, the generation of own power from fossil fuels in the production of goods should continue to be possible for reasons of resource efficiency—and this is therefore not included in the calculation of the share of renewable energy to achieve the target.
- 3.
On closer analysis, the comparatively high demand growth according to the OE core scenario turns out to be extremely realistic, especially considering new consumption. The main reason here is the rapid increase in e-mobility, ie the replacement of combustion engines based on fossil fuels by modern electric drives. Such a development seems to serve the purpose of decarbonising the entire energy system and especially of the mobility sector, or from today's point of view almost without alternative. The interlinking of electricity and transport alone therefore requires an increase in electricity demand of around 7 TWh in the period from 2016 to 2030. For the development of consumption in the other sectors, however, a conservative trend is continued in the core OE scenario—and accordingly, in general growth rates in line with history (6-year average).
- 4.
Particularly for biogas and according to the model analysis also for industrial biomass utilization, a significant reduction in production compared to today is to be expected due partly to expiring subsidies and due to the assumed persistently low energy price level. This sum totals 1.5 TWh comparing electricity generation from other renewables (i.e., biogas, sewage gas, landfill gas, geothermal, biogenic fraction of household waste and industrial biomass use) in 2016 and 2030.
References
Bundesministerium für Nachhaltigkeit und Tourismus (BMNT) (2018) #Mission2030 – Endfassung der österreichischen Energie- und Klimastrategie 2030. Bundesministerium für Nachhaltigkeit und Tourismus, Juni 2018. http://www.mission2030.bmnt.gv.at#Mission2020
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Resch, G., Totschnig, G., Suna, D., Schöniger, F., Geipel, J., Liebmann, L. (2020). Assessment of Prerequisites and Impacts of a Renewable-Based Electricity Supply in Austria by 2030. In: Uyar, T. (eds) Accelerating the Transition to a 100% Renewable Energy Era. Lecture Notes in Energy, vol 74. Springer, Cham. https://doi.org/10.1007/978-3-030-40738-4_4
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DOI: https://doi.org/10.1007/978-3-030-40738-4_4
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