scholarly journals A Modeling and Analysis Framework for Integrated Energy Systems Exposed to Climate Change-Induced NaTech Accidental Scenarios

2022 ◽  
Vol 14 (2) ◽  
pp. 786
Author(s):  
Francesco Di Maio ◽  
Pietro Tonicello ◽  
Enrico Zio
Keyword(s):  
Climate Change ◽  
Nuclear Power ◽  
Power Flow ◽  
Energy Systems ◽  
Wind Farms ◽  
Combined Cycle ◽  
Extreme Weather Events ◽  
Production Plant ◽  
Integrated Energy Systems ◽  
Power To Gas

This paper proposes a novel framework for the analysis of integrated energy systems (IESs) exposed to both stochastic failures and “shock” climate-induced failures, such as those characterizing NaTech accidental scenarios. With such a framework, standard centralized systems (CS), IES with distributed generation (IES-DG) and IES with bidirectional energy conversion (IES+P2G) enabled by power-to-gas (P2G) facilities can be analyzed. The framework embeds the model of each single production plant in an integrated power-flow model and then couples it with a stochastic failures model and a climate-induced failure model, which simulates the occurrence of extreme weather events (e.g., flooding) driven by climate change. To illustrate how to operationalize the analysis in practice, a case study of a realistic IES has been considered that comprises two combined cycle gas turbine plants (CCGT), a nuclear power plant (NPP), two wind farms (WF), a solar photovoltaicS (PV) field and a power-to-gas station (P2G). Results suggest that the IESs are resilient to climate-induced failures.

Developing an Integrated Energy System Interface for Electricity-Hydrogen Hybrid Nuclear Operations

2020 ◽  
Vol 64 (1) ◽  
pp. 92-96
Author(s):  
Thomas A. Ulrich ◽  
Roger Lew ◽  
Ronald L. Boring ◽  
Torrey Mortenson ◽  
Jooyoung Park ◽  
...  
Keyword(s):  
Human Factors ◽  
Electricity Markets ◽  
Nuclear Power ◽  
Power Plants ◽  
Energy Systems ◽  
Energy System ◽  
Human Factors Engineering ◽  
Engineering Project ◽  
Early Integration ◽  
Integrated Energy Systems

Nuclear power plants are looking towards integrated energy systems to address the challenges faced by increasing competition from renewable energy and cheap natural gas in wholesale electricity markets. Electricity-hydrogen hybrid operations is one potential technology being explored. As part of this investigation a human factors team was integrated into the overall engineering project to develop a human system interface (HSI) for a novel system to extract steam for a coupled hydrogen production process. This paper presents the process used to perform the nuclear specific human factors engineering required to develop the HSI for this novel and unprecedented system. Furthermore, the early integration of the human factors team and the meaningful improvements to the engineering of the system itself in addition to the successful development of the HSI for this particular application are described. Lastly, the HSI developed is presented to demonstrate the culmination of the process and disseminate a potential HSI design for electricity-hydrogen hybrid operations that may be useful for others exploring similar integrated energy systems concepts.

Power-to-gas management using robust optimisation in integrated energy systems

2019 ◽  
Vol 236 ◽  
pp. 681-689 ◽  
Author(s):  
Chenghong Gu ◽  
Can Tang ◽  
Yue Xiang ◽  
Da Xie
Keyword(s):  
Energy Systems ◽  
Robust Optimisation ◽  
Integrated Energy Systems ◽  
Power To Gas

scholarly journals Systemic competitiveness of nuclear energy sources*

2018 ◽  
Vol 4 (4) ◽  
pp. 271-277
Author(s):  
Vladimir Usanov
Keyword(s):  
Nuclear Power ◽  
Nuclear Energy ◽  
Unit Cost ◽  
Energy System ◽  
Combined Cycle ◽  
Energy Sources ◽  
Public And Private ◽  
Electricity Cost ◽  
Integrated Energy Systems ◽  
The Cost

Possibilities are analyzed for improving the commercial attractiveness of nuclear electricity generation in market conditions. A model is presented in which a financially integrated electricity generating system comprising several units of one technological type, rather than a single unit, is subject to an economic analysis. Issues have been considered involved in the calculation of the electricity cost in such systems and their construction. It has been shown that the calculated unit cost of the electricity generated in a financially integrated nuclear energy system with the number of units being more than one, provided it is financed by shareholders and creditors, can be lower as compared with the cost of the electricity generated by power units, not integrated economically, of the same capacity under the same investment conditions.The effect is achieved thanks to the short-term crediting component in the electricity cost the funds on which can be returned, at a time, for a smaller number of units (even for only one), as electricity is produced by all units in the system. The results of the calculations for nuclear energy sources and combined-cycle plants using the developed model make it possible to conclude that the switch from economic models of individual nuclear units to models of integrated energy systems can bring the calculated economic performance of nuclear power closer to (or better) the performance of fossil-fuel energy sources. If achieved, this may increase the commercial attractiveness of nuclear power and contribute to a growth in the public and private investments in nuclear power business.

Urban Population Knowledge of Climate Change in Costa Rica and Nicaragua

2013 ◽  
pp. 55-76
Author(s):  
Sergio A. Molina Murillo
Keyword(s):  
Climate Change ◽  
Developing Countries ◽  
Costa Rica ◽  
Urban Population ◽  
Public Understanding ◽  
Extreme Weather Events ◽  
Negative Consequences ◽  
Weather Events ◽  
International Policies ◽  
General Concern

Most scenarios indicate that people in developing countries are more vulnerable and less capable of adapting to climate change. Since our public understanding of risk toward climate change in developing countries is limited, this article presents results from Costa Rica and Nicaragua, two countries which are socio-economically distinct, but which are expected to suffer similar extreme weather events. From October of 2008 until May 2010, a total of 1,047 respondents were surveyed in cities of both countries. The main results indicate that climate change is a widely known concept but other notions such as “carbon footprint” are foreign to most respondents. Despite the general concern with its negative consequences, respondents’ foremost concern is linked to their socioeconomic situation, and how it will be impacted by climate change in such aspects as poverty and social security. The results presented here contribute to advance national and international policies aiming to support mitigation or adaptation strategies in developing countries.

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