Interlinking the Renewable Electricity and Gas Sectors: A Techno-Economic Case Study for Austria

Sejkora, Christoph; Lindorfer, Johannes; Kühberger, Lisa; Kienberger, Thomas

doi:10.3390/en14196289

Cited by 4 publications

(3 citation statements)

References 32 publications

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“…A mix of wind and PV levelised cost of electricity (LCOE) values are applied. Electricity grid tariffs and charges are based on an Austrian framework from 2020 [42].…”

Section: General Framework Conditions For 2040mentioning

confidence: 99%

Cost-Driven Assessment of Technologies’ Potential to Reach Climate Neutrality in Energy-Intensive Industries

Nagovnak,

Rahnama Mobarakeh,

Diendorfer

et al. 2024

Energies

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Efforts towards climate neutrality in Europe must prioritise manufacturing industries, particularly the energy-intensive industry (EII) subsectors. This work proposes a novel approach to assessing transformation options for EII subsectors. At the center of this approach we position a potential analysis of technologies’ impact on subsector decarbonisation—an approach only known so far from the investigation of renewable energy potentials. These so-called technical climate neutrality potentials, supplemented by a set of indicators taking into account energy consumption, capital and operational expenditures, and GHG taxation programs per technology and subsector, enable cross-sector comparisons. The indicators allow the reader to compare the impact on GHG emission mitigation, energy demand, and cost for every considered technology. At the same time, we keep an open mind regarding combinations of technological solutions in the overall energy system. This ensures that the technology pathways with the greatest climate neutrality potential are easily identified. These focal points can subsequently serve in, e.g., narrative-driven scenario analyses to define comprehensive guides for action for policymakers. A case study of Austria for the proposed potential analysis demonstrates that bio-CH4 and electrolysis-derived H2 are the most economical green gases, but GHG certificate costs will be necessary for cost-competitiveness in high-temperature applications. Electrification offers advantages over conventional technologies and CO2-neutral gas alternatives in low-to-mid temperature ranges. Under the given assumptions, including GHG emission certificate costs of 250 EUR/t CO2, alternative technologies in the identified climate neutrality pathways can operate at total annual costs comparable to conventional fossil-based equivalents.

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“…A mix of wind and PV levelised cost of electricity (LCOE) values are applied. Electricity grid tariffs and charges are based on an Austrian framework from 2020 [42].…”

Section: General Framework Conditions For 2040mentioning

confidence: 99%

Cost-Driven Assessment of Technologies’ Potential to Reach Climate Neutrality in Energy-Intensive Industries

Nagovnak,

Rahnama Mobarakeh,

Diendorfer

et al. 2024

Energies

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“…Thus, in cooperation with the industry, politicians and government authorities are responsible for making this transition happen by adopting necessary legal and tax regulations. In the long term, supply security, job security and affordability can only be guaranteed by moving towards a sustainable economy [47,48].…”

Section: Literature Reviewmentioning

confidence: 99%

Forecasting Development of Green Hydrogen Production Technologies Using Component-Based Learning Curves

et al. 2023

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Hydrogen energy is expected to become one of the most efficient ways to decarbonize global energy and transportation systems. Green hydrogen production costs are currently high but are likely to decline due to the economy of scale and learning-by-doing effects. The purpose of this paper is to forecast future green hydrogen costs based on the multicomponent learning curves approach. The study investigates the learning curves for the main components in hydrogen value chains: electrolyzers and renewable energy. Our findings estimate the learning rates in the production of PEM and AE electrolyzers as 4%, which is quite conservative compared to other studies. The estimations of learning rates in renewable energy electricity generation range from 14.28 to 14.44% for solar-based and 7.35 to 9.63% for wind-based production. The estimation of the learning rate in green hydrogen production ranges from 4% to 10.2% due to uncertainty in data about the cost structure. The study finds that government support is needed to accelerate electrolysis technology development and achieve decarbonization goals by 2050.

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“…Like the electricity price, the natural gas price time series 2020 with the quarter-hourly resolution is scaled to represent the price situations in 2030 and 2040. For this purpose, calculations based on literature data [74,75] were performed. In addition, these calculations are based on an energy mitigations scenario (MGS) of the Federal Environment Agency Austria (WEM scenario [76]) as part of a transition path to reach climate neutrality.…”

Section: Day-ahead Energy Markets Frequency Restoration Reserve and A...mentioning

confidence: 99%

Analysing sector coupling technologies for Re‐purposing coal‐fired power plants–Case study for the ENTSO‐E grid

Traupmann

Greiml

Steinegger

et al. 2022

IET Energy Syst Integration

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The high emission intensity of coal-fired power plants (CFPP) leads to the inevitable next step towards energy transition, the coal phase-out. One challenge is the subsequent use of still-functioning assets. Re-purposing these assets avoids value loss and creates new opportunities for coal regions. Therefore, this study considers the sector coupling technologies Power-to-Gas (PtG) and Gas-to-Power (GtP) as re-purposing options. First, a multi-variable Mixed-Integer Linear Programming optimisation model is established. This model includes the participation of the plant in the current (2020) and future (2030, 2040) electricity and natural gas spot-markets and the balancing power market while fulfilling existing contracts, and allows for determining the re-purposing technologies' operating profiles. By applying a techno-economic analysis, investment recovery periods of the considered re-purposing technologies are assessed, which range between two (GtP) and over ten (PtG) years. A sensitivity analysis accounting for current energy prices and technological advancements reveals capital expenditure has the highest impact on this Return-On-Investment period. Additionally, a case study considering the Austrian energy grids is performed to account for the grid impact of integrating these technologies at former CFPP sites. Thus, it is found that the investigated sector coupling technologies have the potential to compensate for grid congestions even in profit-optimised operation. K E Y W O R D Scoal phase-out, combined cycle gas turbine, energy markets, mixed-integer linear programming, power-to-gas | INTRODUCTIONCoal represents the most common fossil fuel resource and is the largest source for electricity generation, providing about 37% of the global electricity demand [1]. Additionally, coal electricity generation is considered reliable and cost-effective [2]. However, since coal is also the most carbon-intensive fossil fuel, currently accounting for more than 30% of global CO 2 emissions [3], coal-fired electricity generation is under political and economic pressure [2]. Therefore, the coal phaseout [4] is an inevitable next step for European countries to rapidly achieve climate neutrality of the electrical energy system [4]. To remain within the carbon budget of the Paris Agreement [5], 72% of the CFPPs operating in 2020 within the European Union (EU) have to be shut down by 2025 [4, 6]. While more than 30% of the European countries already have coal-free power generation, the coal phase-out is not even under discussion in 24% of the European countries. A more detailed description of the coal phase-out trends in Europe can be seen in Figure 1. According to the individual national phaseout plans, 63% of the European countries are expected to generate coal-free electricity by 2030 [7].The coal phase-out, however, leads to the early closure of existing coal-fired power plant (coal-fired power plants (CFPP)) sites before they reach end-of-life. Thus, the coal phase-out entails the risk of leaving valuable assets (e.g. infr...

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Interlinking the Renewable Electricity and Gas Sectors: A Techno-Economic Case Study for Austria

Cited by 4 publications

References 32 publications

Cost-Driven Assessment of Technologies’ Potential to Reach Climate Neutrality in Energy-Intensive Industries

Cost-Driven Assessment of Technologies’ Potential to Reach Climate Neutrality in Energy-Intensive Industries

Forecasting Development of Green Hydrogen Production Technologies Using Component-Based Learning Curves

Analysing sector coupling technologies for Re‐purposing coal‐fired power plants–Case study for the ENTSO‐E grid

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