scholarly journals Production and use of Hydrogen – Regional Energy Systems Analysis of Oslo, Telemark and Rogaland

2009 ◽  
Vol 3 (1) ◽  
pp. 311-322
Author(s):  
Kari Espegren ◽  
Eva Rosenberg ◽  
Audun Fidje ◽  
Christoph Stiller
Energy and AI ◽  
2021 ◽  
pp. 100074
Author(s):  
Meisam Booshehri ◽  
Lukas Emele ◽  
Simon Flügel ◽  
Hannah Förster ◽  
Johannes Frey ◽  
...  

Energies ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 495
Author(s):  
Jessica Thomsen ◽  
Noha Saad Hussein ◽  
Arnold Dolderer ◽  
Christoph Kost

Due to the high complexity of detailed sector-coupling models, a perfect foresight optimization approach reaches complexity levels that either requires a reduction of covered time-steps or very long run-times. To mitigate these issues, a myopic approach with limited foresight can be used. This paper examines the influence of the foresight horizon on local energy systems using the model DISTRICT. DISTRICT is characterized by its intersectoral approach to a regionally bound energy system with a connection to the superior electricity grid level. It is shown that with the advantage of a significantly reduced run-time, a limited foresight yields fairly similar results when the input parameters show a stable development. With unexpected, shock-like events, limited foresight shows more realistic results since it cannot foresee the sudden parameter changes. In general, the limited foresight approach tends to invest into generation technologies with low variable cost and avoids investing into demand reduction or efficiency with high upfront costs as it cannot compute the benefits over the time span necessary for full cost recovery. These aspects should be considered when choosing the foresight horizon.


Energies ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 2263 ◽  
Author(s):  
Romano Wyss ◽  
Susan Mühlemeier ◽  
Claudia Binder

In this paper, we apply an indicator-based approach to measure the resilience of energy regions in transition to a case study region in Austria. The indicator-based approach allows to determine the resilience of the transition of regional energy systems towards higher shares of renewables and potentially overall higher sustainability. The indicators are based on two core aspects of resilience, diversity and connectivity. Diversity is thereby operationalized by variety, disparity and balance, whereas connectivity is operationalized by average path length, degree centrality and modularity. In order to get a full picture of the resilience of the energy system at stake throughout time, we apply the measures to four distinct moments, situated in the pre-development, take-off, acceleration and stabilization phase of the transition. By contextually and theoretically embedding the insights in the broader transitions context and empirically applying the indicators to a specific case, we derive insights on (1) how to interpret the results in a regional context and (2) how to further develop the indicator-based approach for future applications.


2021 ◽  
pp. 159-174
Author(s):  
Peter Hettich

AbstractAgainst the backdrop of an energy system moving from vertically integrated monopolies towards a decentral system with a multitude of actors in ever-changing roles, we observe a gradual strengthening of central governance mechanisms on the nation-state and on the European level. Such a top-down approach to the governance of the energy system might have been necessary to open up energy markets to competitive processes and innovation. With social goals shifting and security of supply and environmental concerns gaining importance, the governance of the energy system has to be reshaped anew, enabling, e.g., the optimization of regional energy systems by local actors. In particular, strict unbundling rules may hinder or preclude system-serving behavior, to the detriment of all market participants and consumers. Lawmakers and regulators should provide some leeway to cooperative approaches, such as the empowerment of local actors to devise their own energy regimes.


Author(s):  
Aleh Cherp ◽  
Farhad Mukhtarov

Energy security is a multidisciplinary field which overlaps with engineering and energy systems analysis, earth sciences, economics, technology studies, political science, international relations, and security and military studies. Though discussions of energy security have been around for most of the 20th century, a systematic “energy security science” has emerged only recently and is still a young and dynamic field. The structure and the borders of the area are widely debated and contested. Contemporary debates on energy security include dilemmas such as whether energy security is a “socially constructed concept” or an objective property of energy systems, whether it is primarily a national-level issue or whether it also exists at different scales (household, local, regional, and global), whether it relates only to conventional or also to “human security,” whether it is a generic or context-dependent idea, and how it relates to other energy policy issues (e.g., environmental and social impacts). The key outcomes of this debate include the idea that energy security relates to both shocks and stresses, includes both physical and economic aspects, and relates to the “vital energy systems” which underpin the stability and functioning of societies.


Energies ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 4437
Author(s):  
Thomas Betten ◽  
Shivenes Shammugam ◽  
Roberta Graf

With an increasing share of renewable energy technologies in our energy systems, the integration of not only direct emission (from the use phase), but also the total life cycle emissions (including emissions during resource extraction, production, etc.) becomes more important in order to draw meaningful conclusions from Energy Systems Analysis (ESA). While the benefit of integrating Life Cycle Assessment (LCA) into ESA is acknowledged, methodologically sound integration lacks resonance in practice, partly because the dimension of the implications is not yet fully understood. This study proposes an easy-to-implement procedure for the integration of LCA results in ESA based on existing theoretical approaches. The need for a methodologically sound integration, including the avoidance of double counting of emissions, is demonstrated on the use case of Passivated Emitter and Rear Cell photovoltaic technology. The difference in Global Warming Potential of 19% between direct and LCA based emissions shows the significance for the integration of the total emissions into energy systems analysis and the potential double counting of 75% of the life cycle emissions for the use case supports the need for avoidance of double counting.


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