A comparison of PV resource modeling for sizing microgrid components

Newman, S.; Shiozawa, Kaymie; Follum, Jim; Barrett, Emily; Douville, Travis; Hardy, Trevor; Solana, Amy E.

doi:10.1016/j.renene.2020.08.074

Cited by 8 publications

(5 citation statements)

References 12 publications

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“…It was found that individual AI models had accuracies of around 10%, whereas hybrid models achieved accuracies near 5% of error in exchange for more computational resources and more extensive datasets. When considering storage also, the computational cost substantially increases for both the sizing of the components [215] and control of the energy flow [212,213], especially if the system considers more than one type of storage [216,217].…”

Section: Discussionmentioning

confidence: 99%

Assessing the Role of Energy Storage in Multiple Energy Carriers toward Providing Ancillary Services: A Review

2022

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Renewable energy power plants and transport and heating electrification projects are being deployed to enable the replacement of fossil fuels as the primary energy source. This transition encourages distributed generation but makes the grid more weather-dependent, thus reducing its inertia. Simultaneously, electrical network operators face voltage, frequency, and stability challenges at the distribution level. Networks were not designed to manage the stochasticity of renewable energy sources or the congestion caused by the new transport and heating demands. Such challenges are commonly addressed through infrastructure reinforcements. This review studies how energy storage systems with different carriers can provide a collaborative solution involving prosumers as ancillary services providers at the distribution level. We focused on the European urban context; thus, we analyzed renewable energy sources, batteries, supercapacitors, hydrogen fuel cells, thermal energy storage, and electric vehicles. A thorough review of successful implementations proved that including storage in one or more carriers benefits the distribution system operators and the prosumers, from both technical and economic perspectives. We propose a correlation between individual energy storage technologies and the ancillary services they can provide based on their responses to specific grid requirements. Therefore, distribution system operators can address network issues together with the prosumers. Nevertheless, attractive regulatory frameworks and business models are required to motivate prosumers to use their assets to support the grid. Further work is recommended to describe the joint operation of multiple storage technologies as multicarrier systems, focusing on the coupling of electrical and thermal energy storage. Additionally, how ancillary services affect the energy storage system’s aging should be studied.

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Section: Discussionmentioning

confidence: 99%

Assessing the Role of Energy Storage in Multiple Energy Carriers toward Providing Ancillary Services: A Review

2022

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“…The ability of different renewable resources to meet Moloka'i's electrical load is evaluated using the Microgrid Component Optimization for Resilience (MCOR) tool, developed at PNNL [22]. MCOR uses a statistical model to simulate PV resources under a wide range of potential grid outage conditions, simulates microgrid operation for each of those profiles, and returns several different combinations of resources (including PV, batteries, and diesel generators) that can meet a site's electrical loads under all simulated outage conditions.…”

Section: B Microgrid Simulationmentioning

confidence: 99%

“…MCOR uses a statistical model to simulate PV resources under a wide range of potential grid outage conditions, simulates microgrid operation for each of those profiles, and returns several different combinations of resources (including PV, batteries, and diesel generators) that can meet a site's electrical loads under all simulated outage conditions. The details of the MCOR PV profile generation algorithm and microgrid operation simulation are discussed in detail in [22]. As MCOR is designed to evaluate PV resources, considering wind and wave required some modifications, which are discussed in II-C.…”

Section: B Microgrid Simulationmentioning

confidence: 99%

Evaluating the resilience benefits of marine energy in microgrids

Newman

Bhatnagar²,

O’Neil³

et al. 2022

Int. J. Mar. Ene.

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Marine energy resources could promote clean energy and resilience of coastal and island microgrids, and thus, these applications are a key future market for marine energy development. To demonstrate these benefits, this paper illustrates how inclusion of wave resources into energy resilience solutions can improve overall grid efficiency and sustainability, as well as maintain electricity supply during grid outages. The paper describes a case study evaluation of the potential to add wave energy to the Moloka'i grid as Hawaii strives to meet a 100% clean energy target. The Microgrid Component Optimization for Resilience tool is used to simulate operation in off-grid conditions and size different combinations of wave, solar photovoltaic (PV), wind, storage, and fuel resources required to meet resilience objectives. This research investigates how including wave resources in a microgrid contributes to reducing or eliminating biofuel generation, producing a zero-greenhouse gas emission profile in the latter case, and avoiding the over-sizing of PV and battery systems to accommodate periods of unavailability or high demand. Insight from this paper supports the value proposition of wave resources for future markets and informs the relationship between marine generators and microgrids or isolated grids.

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“…This has led to the many new approaches to assist in both power system planning and operations that would enable greater system resilience. These include the development of new metrics [9], [10]; new analytical methods for outage prediction [9], [12]; optimal placement, sizing, and design of microgrid systems [13]- [15]; evaluating the vulnerability of generation supply mix to different extreme weather conditions [16]- [18]; and the development of new methods to model the impact of natural hazards on power system infrastructure [19]. Related to hurricane threats in particular, work has been done to characterize power system fragility and simulate cascading faults caused by strong winds [20], [21].…”

Section: Introductionmentioning

confidence: 99%

A Risk-Based Framework for Power System Modeling to Improve Resilience to Extreme Events

Barrett

Mahapatra

Elizondo

et al. 2023

IEEE Open J. Power Energy

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The extent of the damage to Puerto Rico from Hurricane Maria in September 2017 led to outages in electricity service that persisted for months. Power system operators attempting to restore critical facilities faced challenges on almost every front, from supply chain interruptions to the inaccessibility of key assets. After a disaster of this magnitude, it is critical, but challenging, to prioritize how limited resources are directed toward rebuilding and fortifying the electric power system. To inform these decisions, the U.S. Department of Energy funded efforts investigating methodologies to identify critical vulnerabilities to the Puerto Rican power system, and to provide data-driven recommendations on how to harden and operate the system for greater resilience. This work presents the Risk-based Contingency Analysis Tool (RCAT), a framework developed as a part of that resilience initiative. The framework can qualitatively and quantitatively describe the most critical system vulnerabilities with an understanding of both likelihood of occurrence and impact. It evaluates the effectiveness of candidate remediation strategies in reducing overall risk to the system from future hurricane events. This paper will describe RCAT, with an emphasis on how different modeling capabilities have been integrated along with probabilistic methods and analytical metrics to better describe risk.

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A comparison of PV resource modeling for sizing microgrid components

Cited by 8 publications

References 12 publications

Assessing the Role of Energy Storage in Multiple Energy Carriers toward Providing Ancillary Services: A Review

Assessing the Role of Energy Storage in Multiple Energy Carriers toward Providing Ancillary Services: A Review

Evaluating the resilience benefits of marine energy in microgrids

A Risk-Based Framework for Power System Modeling to Improve Resilience to Extreme Events

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