Renewable electricity grids, battery storage and missing money

Duan, Jun; Kooten, G. Cornelis van; Li, Xuan

doi:10.1016/j.resconrec.2020.105001

Cited by 17 publications

(8 citation statements)

References 14 publications

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“…Failures are, indeed, here modeled as "shock" events affecting all plants at the same time that may or may not fail under the shock received, depending on their fragility. For quantitative evaluation, the probability P γ,c (t|δ) of failure of the γ-th plant due to the δ-th natural event is calculated as: P γ,c (t|δ) = P(t, γ|δ) × P(δ) (13) where P(t, γ|δ) is the probability that the γ-th plant fails at time t due to the occurrence of the δ-th event (i.e., the fragility of the γ-th plant to the δ-th event), and P(δ) is the probability of δ-th event occurrence (e.g., a specific δ-th flooding level occurrence). P(t, γ|δ) is calculated using fragility curves that can be obtained by fitting failure databases.…”

Section: The Ies Reliability Modelmentioning

confidence: 99%

“…With respect to climate change, in [3][4][5][6], to name a few, the effects of temperature on the reliability of electric lines, the safety systems of a NPP, the availability of hydropower systems and the cooling water of power systems are analyzed, respectively; in [7,8], the impact of wind and lightning hazards on oil and gas processing plants are evaluated. On the other hand, this work considers "shock" events specifically, such as floods and earthquakes, whose frequency of occurrence and severity are increasing due to climate change [9][10][11][12][13][14] and call for a specific framework of analysis.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

2022

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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.

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Section: The Ies Reliability Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

2022

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“…Batteries and stored hydrogen are still desirable for a system like this, connected to both gas and electricity networks, providing greater redundancy whilst making a larger contribution to network security and reliability. Twenty four hours of storage is suitable for VRE penetration of 90 percent [75] and building this in to provide reserves will help deliver fast-responding power assets in the grid that are missing incentives [76]. To achieve the full potential of this approach, though, hydrogen should be enabled to act as a two-way resource as with the battery system.…”

Section: Replacing Engines and Turbinesmentioning

confidence: 99%

Healthy Power: Reimagining Hospitals as Sustainable Energy Hubs

et al. 2020

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Human health is a key pillar of modern conceptions of sustainability. Humanity pays a considerable price for its dependence on fossil-fueled energy systems, which must be addressed for sustainable urban development. Public hospitals are focal points for communities and have an opportunity to lead the transition to renewable energy. We have reimagined the healthcare energy ecosystem with sustainable technologies to transform hospitals into networked clean energy hubs. In this concept design, hydrogen is used to couple energy with other on-site medical resource demands, and vanadium flow battery technology is used to engage the public with energy systems. This multi-generation system would reduce harmful emissions while providing reliable services, tackling the linked issues of human and environmental health.

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“…However, there are often multi-objective conflicts in hybrid REs. 21,22 Such as Chu and Hawkes proposed an optimization model involving the objective of minimizing cost, residual load and portfolio output variability. 21 Moreover, it is necessary to match the power demand to reduce surplus electricity and resource waste.…”

Section: Introductionmentioning

confidence: 99%

Sustainable portfolio re-equilibrium on wind-solar-hydro system: An integrated optimization with combined meta-heuristic

Gan

Chen

et al. 2022

Energy & Environment

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Due to the intermittency of renewable energies, their acceptances in electricity market are lower than fossil energies. Therefore, it is necessary to overcome the development resistance through portfolio re-equilibrium. Balance supply and demand in markets involving different stakeholders to optimize return on investment. Compared with the past, this paper proposes an integrated optimization with combined meta-heuristic for wind-solar-hydro system. It investigates to coordinate the interactions of power stations and power grid with their internal conflicts respectively. Specifically, the investment profit, the investment volume and the investment risk are considered as the optimized objectives for wind-solar-hydro system. However, power grid takes operation efficiency, surplus electricity and carbon emissions into account to be the optimal objectives. They are composed to establish a bi-level programming model. Moreover, an improved particle swarm optimization is utilized to deal with the problem-orientated model with NP-hard complexity. Finally, to verify the feasibility of the proposed model, a case of wind-solar-hydro system from Panzhihua located in southwest China is conducted. The results showed that portfolio re-equilibrium strategies had the potential to push forward sustainable development. Secondly, generating capacity was positively affected by the initial investment volume. However, the investment profit did not absolutely rise with the grow of investment risk. Thirdly, profit-oriented strategies were conducive to carbon emissions reduction. But risk-oriented strategies can reduce surplus electricity and increase the stability of electricity purchase schemes.

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Renewable electricity grids, battery storage and missing money

Cited by 17 publications

References 14 publications

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

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

Healthy Power: Reimagining Hospitals as Sustainable Energy Hubs

Sustainable portfolio re-equilibrium on wind-solar-hydro system: An integrated optimization with combined meta-heuristic

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