Levelized cost of energy from private and social perspectives: The case of improved alkaline water electrolysis

Kuckshinrichs, Wilhelm; Koj, Jan Christian

doi:10.1016/j.jclepro.2018.08.232

Cited by 34 publications

(19 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Instead, the natural gas price increment rate is fixed to 1%/year. Previous studies [33,39] consider higher increase rate for energy prices than this study.…”

Section: Electricity and Natural Gasmentioning

confidence: 66%

“…The price of energy is generally difficult to predict because it is widely volatile [15]. Recent projections state an increase in energy price due to several factors [33,[39][40][41]. Concerning electricity, the increase is mainly due to capital cost and governmentally influenced cost components, such as taxes on fuels and ETS (emissions trading system) payments [39].…”

Section: Electricity and Natural Gasmentioning

confidence: 99%

See 1 more Smart Citation

Economic Analysis of Hydrogen Household Energy Systems Including Incentives on Energy Communities and Externalities: A Case Study in Italy

et al. 2021

View full text Add to dashboard Cite

The building sector is one of the key energy consumers worldwide. Fuel cell micro-Cogeneration Heat and Power systems for residential and small commercial applications are proposed as one of the most promising innovations contributing to the transition towards a sustainable energy infrastructure. For the application and the diffusion of these systems, in addition to their environmental performance, it is necessary, however, to evaluate their economic feasibility. In this paper a life cycle assessment of a fuel cell/photovoltaic hybrid micro-cogeneration heat and power system for a residential building is integrated with a detailed economic analysis. Financial indicators (net present cost and payback time are used for studying two different investments: reversible-Solid Oxide Fuel Cell and natural gas SOFC in comparison to a base scenario, using a homeowner perspective approach. Moreover, two alternative incentives scenarios are analysed and applied: net metering and self-consumers’ groups (or energy communities). Results show that both systems obtain annual savings, but their high capital costs still would make the investments not profitable. However, the natural gas Solide Oxide Fuel Cell with the net metering incentive is the best scenario among all. On the contrary, the reversible-Solid Oxide Fuel Cell maximizes its economic performance only when the self-consumers’ groups incentive is applied. For a complete life cycle cost analysis, environmental impacts are monetized using three different monetization methods with the aim to internalize (considering them into direct cost) the externalities (environmental costs). If externalities are considered as an effective cost, the natural gas Solide Oxide Fuel Cell system increases its saving because its environmental impact is lower than in the base case one, while the reversible-Solid Oxide Fuel Cell system reduces it.

show abstract

“…Instead, the natural gas price increment rate is fixed to 1%/year. Previous studies [33,39] consider higher increase rate for energy prices than this study.…”

Section: Electricity and Natural Gasmentioning

confidence: 66%

Section: Electricity and Natural Gasmentioning

confidence: 99%

Economic Analysis of Hydrogen Household Energy Systems Including Incentives on Energy Communities and Externalities: A Case Study in Italy

et al. 2021

View full text Add to dashboard Cite

show abstract

“…0% 10% 20% 30% 40% 50% <10 [10][11][12][13][14][15][16][17][18][19][20] [20-30) [30][31][32][33][34][35][36][37][38][39][40] Figure 3a shows that LH 2 allows to temporally disentangle hydrogen production from demand. On average, production is high during hours when (renewable) electricity is abundant and, thus, cheap.…”

Section: Use Patterns Of Hydrogen Production and Storage Indicate Dif...mentioning

confidence: 99%

Optimal supply chains and power sector benefits of green hydrogen

Stockl,

Schill,

Zerrahn

2020

Preprint

View full text Add to dashboard Cite

Green hydrogen can help to decarbonize transportation, but its power sector interactions are not well understood. It may contribute to integrating variable renewable energy sources if production is sufficiently flexible in time. Using an open-source co-optimization model of the power sector and four options for supplying hydrogen at German filling stations, we find a trade-off between energy efficiency and temporal flexibility: for lower shares of renewables and hydrogen, more energy-efficient and less flexible small-scale on-site electrolysis is optimal. For higher shares of renewables and/or hydrogen, more flexible but less energy-efficient largescale hydrogen supply chains gain importance as they allow disentangling hydrogen production from demand via storage. Liquid hydrogen emerges as particularly beneficial, followed by liquid organic hydrogen carriers and gaseous hydrogen. Large-scale hydrogen supply chains can deliver substantial power sector benefits, mainly through reduced renewable surplus generation. Energy modelers and system planners should consider the distinct flexibility characteristics of hydrogen supply chains in more detail when assessing the role of green hydrogen in future energy transition scenarios.

show abstract

“…This economic metric is extremely convenient to analyze system integration and optimization of new technologies and to assess their economic competitiveness. Levelized costs are widely used for the comparison of electricity generation technologies and has been generalized to a variety of other energy technologies as for instance hydrogen production [32] or energy storage [33]. First estimates of the levelized costs of SNG appeared around 2015 and only few other studies followed.…”

Section: Technical and Economic Assumptions And Researchmentioning

confidence: 99%

Site-dependent levelized cost assessment for fully renewable Power-to-Methane systems

Morgenthaler¹,

Ball²,

Koj³

et al. 2020

Preprint

Self Cite

View full text Add to dashboard Cite

The generation of synthetic natural gas from renewable electricity enables long-term energy storage and provides clean fuels for transportation. In this article, we analyze fully renewable Power-to-Methane systems using a high-resolution energy system optimization model applied to two regions within Europe. The optimum system layout and operation depend on the availability of natural resources, which vary between locations and years. We find that much more wind than solar power is used, while the use of an intermediate battery electric storage system has little effects. The resulting levelized costs of methane vary between 0.24 and 0.30 e/kWh and the economic optimal utilization rate between 63 % and 78 %. We further discuss how the economic competitiveness of Power-to-Methane systems can be improved by the technical developments and by the use of co-products, such as oxygen and curtailed electricity. A sensitivity analysis reveals that the interest rate has the highest influence on levelized costs, followed by the investment costs for wind and electrolyzer stack.

show abstract

Levelized cost of energy from private and social perspectives: The case of improved alkaline water electrolysis

Cited by 34 publications

References 33 publications

Economic Analysis of Hydrogen Household Energy Systems Including Incentives on Energy Communities and Externalities: A Case Study in Italy

Economic Analysis of Hydrogen Household Energy Systems Including Incentives on Energy Communities and Externalities: A Case Study in Italy

Optimal supply chains and power sector benefits of green hydrogen

Site-dependent levelized cost assessment for fully renewable Power-to-Methane systems

Contact Info

Product

Resources

About