Techno-economic system analysis of an offshore energy hub with an outlook on electrofuel applications

Thommessen, Christian; Otto, Maximilian; Nigbur, Florian; Roes, J.; Heinzel, Angelika

doi:10.1016/j.segy.2021.100027

Cited by 27 publications

(9 citation statements)

References 21 publications

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“…The assessments considered factors like location, types of RES, and infrastructure and often included different H2 production pathways. The most common pathway was the offshore platform with a centrally placed electrolyzer [8,13,20,22,29,42,44,63,72,76,[83][84][85][86][87][88][89][90][91]. Figure 3 illustrates three different H2 concepts: shoreline, platform, in-turbine.…”

Section: Business Case Driven Approach: Innovation and Commercial Per...mentioning

confidence: 99%

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Towards a comprehensive understanding and assessment of Offshore Energy Hubs with a hydrogen focus: An evolutionary perspective

Petersen,

Andreae,

You

et al. 2023

J. Phys.: Conf. Ser.

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Climate change has necessitated the reduction of CO2 emissions, particularly in hard-to-abate sectors. Offshore Energy Hubs (OEHs), powered by renewable sources, have been proposed as a potential solution for renewable build-out and cross-sectoral integration. This paper presents a comprehensive literature review examining the technical concept and assessment mechanisms of OEHs from multiple perspectives, including chronological, design, and assessment principles. The review reveals a shift in the technical concept and evaluation assessments, evolving from cost-driven to economically driven, with a trend towards harmonized assessments that incorporate both economic and societal values, such as environmental impact. The importance of societal assessments is emphasized, addressing a research gap, where further investigation is needed for a successful implementation of future large-scale OEH projects. The paper highlights the need to develop comprehensive and inclusive evaluation frameworks to ensure the sustainable implementation of OEHs for the ongoing energy transition.

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Section: Business Case Driven Approach: Innovation and Commercial Per...mentioning

confidence: 99%

“…According to the literature reviewed, the OEHs can provide a range of sustainability values, which benefits the overall society [14,[42][43][44]74,79,86,95,96,99]. Examples include job creation, increased RES to reduce dependency on fossil fuels, and decreased CO2 emissions.…”

Section: Sustainability Valuementioning

confidence: 99%

Towards a comprehensive understanding and assessment of Offshore Energy Hubs with a hydrogen focus: An evolutionary perspective

Petersen,

Andreae,

You

et al. 2023

J. Phys.: Conf. Ser.

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“…Using energy hubs for coping with wind power volatility was discussed in [56]. Energy hubs can become sustainable pillars by improving cost-competitiveness of wind power [50]. In addition, the energy hub concept was also used to increase the energy flexibility in buildings [41] and electricity markets [40].…”

Section: Offshore Energy System Decarbonisationmentioning

confidence: 99%

Modelling and analysis of offshore energy hubs

Zhang,

Tomasgard,

Knudsen

et al. 2021

Preprint

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Clean, multi-carrier Offshore Energy Hubs (OEHs) may become pivotal for efficient offshore wind power generation and distribution. In addition, OEHs may provide decarbonised energy supply for maritime transport, oil and gas recovery, and offshore farming while also enabling conversion and temporary storage of liquefied decarbonised energy carriers for export. Here, we investigate the role of OEHs in the transition of the Norwegian continental shelf energy system towards zero-emission energy supply. We develop a mixedinteger linear programming model for investment planning and operational optimisation to achieve decarbonisation at minimum costs. We consider clean technologies, including offshore wind, offshore solar, OEHs and subsea cables. We conduct sensitivity analysis on CO 2 tax, CO 2 budget and the capacity of power from shore. The results show that (a) a hard carbon cap is necessary for stimulating a zero-emission offshore energy system; (b) offshore wind integration and power from shore can more than halve current emissions, but OEHs with storage are necessary for zero-emission production and (c) at certain CO 2 tax levels, the system with OEHs can potentially reduce CO 2 emissions by 50% and energy losses by 10%, compared to a system with only offshore renewables, gas turbines and power from shore.

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“…To the best of our knowledge, this is the first design optimization study for green offshore ammonia that considers this level of detail. When preparing this manuscript, we learned about the recently published work by Thommessen et al who analyzed the potential of green offshore ammonia in the North Sea. While their work follows the same idea, it applies relatively simple single-period models and does not perform rigorous design optimization.…”

Section: Introductionmentioning

confidence: 99%

Harnessing the Wind Power of the Ocean with Green Offshore Ammonia

Wang

Daoutidis

Zhang

2021

ACS Sustainable Chem. Eng.

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Offshore wind is playing an increasingly important role in our energy mix as it provides the opportunity to increase the penetration of wind energy considerably beyond the current capacity of land-based wind resources. While most planned offshore wind projects consider constructing the wind farms relatively close to the coast, there is vast untapped potential over the open ocean where wind velocities are significantly higher. However, transmitting electricity generated far from shore to onshore demand points is a major challenge since using submarine power cables for long distances can be prohibitively expensive. To address this challenge, we consider using offshore wind energy to directly produce green ammonia that can then be transported to shore via ships or pipelines. This is technically feasible since electricity-based production of ammonia only requires water and air as input materials. We perform a comprehensive techno-economic analysis for such green offshore ammonia plants, determining the minimum achievable levelized costs of ammonia for various wind profiles, plant capacities, distances to shore, and water depths. Our results indicate that the proposed approach has the promise to be cost-competitive, especially when considering expected cost reductions in offshore wind turbines in the foreseeable future.

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Techno-economic system analysis of an offshore energy hub with an outlook on electrofuel applications

Cited by 27 publications

References 21 publications

Towards a comprehensive understanding and assessment of Offshore Energy Hubs with a hydrogen focus: An evolutionary perspective

Towards a comprehensive understanding and assessment of Offshore Energy Hubs with a hydrogen focus: An evolutionary perspective

Modelling and analysis of offshore energy hubs

Harnessing the Wind Power of the Ocean with Green Offshore Ammonia

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