Protocol for uniformly measuring and expressing the performance of energy storage systems.

Ferreira, Summer Rhodes; Rose, David Martin; Schoenwald, David A.; Bray, Kathy; Conover, David; Kintner-Meyer, Michael Cw; Viswanathan, Vilayanur V.

doi:10.2172/1096455

Cited by 22 publications

(13 citation statements)

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“…This actual energy is multiplied by the loss rate to produce the amount of energy actually consumed by the storage device when providing reserve services. We assume the dispatch to contract ratio is 14% (Ferreira 2013) and the efficiency loss rate is 20%, based on a net roundtrip efficiency of 80%.…”

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confidence: 99%

Impact of Wind and Solar on the Value of Energy Storage

Denholm

Jorgenson

Hummon

et al. 2013

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Printed on paper containing at least 50% wastepaper, including 10% post consumer waste.iii ForewordThis report is one of a series stemming from the U.S. Department of Energy (DOE) Demand Response and Energy Storage Integration Study. This study is a multi-national-laboratory effort to assess the potential value of demand response and energy storage to electricity systems with different penetration levels of variable renewable resources and to improve our understanding of associated markets and institutions. This study was originated, sponsored, and managed jointly by the DOE Office of Energy Efficiency and Renewable Energy and the DOE Office of Electricity Delivery and Energy Reliability.Grid modernization and technological advances are enabling resources, such as demand response and energy storage, to support a wider array of electric power system operations. Historically, thermal generators and hydropower in combination with transmission and distribution assets have been adequate to serve customer loads reliably and with sufficient power quality, even as variable renewable generation, such as wind and solar power, have become a larger part of the national energy supply. While demand response and energy storage can serve as alternatives or complements to traditional power system assets in some applications, their values are not entirely clear. This study seeks to address the extent to which demand response and energy storage can provide cost-effective benefits to the grid and to highlight institutions and market rules that facilitate their use.The project was initiated and informed by the results of two DOE workshops: one on energy storage and the other on demand response. The workshops were attended by members of the electric power industry, researchers, and policymakers, and the study design and goals reflect their contributions to the collective thinking of the project team. Additional information and the full series of reports can be found at www.eere.energy.gov/analysis.This report is available at no cost from the National Renewable Energy Laboratory (NREL) at www.nrel.gov/publications. This analysis used a commercial grid simulation tool to evaluate several operational benefits of electricity storage, including load-leveling, spinning contingency reserves, and regulation reserves. A series of VG energy penetration scenarios from 16% to 55% were generated for a utility system in the western United States. This operational value of storage (measured by its ability to reduce system production costs) was estimated in each VG scenario, considering provision of different services and with several sensitivities to fuel price and generation mix. Overall, the results found that the presence of VG increases the value of energy storage by lowering off-peak energy prices more than on-peak prices, leading to a greater opportunity to arbitrage this price difference. However, significant charging from renewables, and consequently a net reduction in carbon emissions, did not occur until VG penetration was in the range of...

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confidence: 99%

Impact of Wind and Solar on the Value of Energy Storage

Denholm

Jorgenson

Hummon

et al. 2013

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“…6. The reactive power of each PCS is calculated based on the allowable maximum reactive power for PCS i,Q i , are as shown in (16).…”

Section: Reactive Power Control Strategy For Bessmentioning

confidence: 99%

“…There are also more applications of lithium-ion BESS in the United States, such as in the fields of renewable energy generations, distributed generations, micro grids, etc. The American Xtreme Power, Duke Energy, Altairnano, and AES Energy storage companies, for example, have conducted researches on energy storage technologies [16][17][18]. At present, existing applications of large-scale lithium, sodium-sulfur or redox flow battery have reached to tens of megawatts (MW) in power rating.…”

Section: Introductionmentioning

confidence: 99%

Optimal control and management of a large-scale battery energy storage system to mitigate fluctuation and intermittence of renewable generations

Yao

Dong

2016

J. Mod. Power Syst. Clean Energy

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Battery energy storage system (BESS) is one of the effective technologies to deal with power fluctuation and intermittence resulting from grid integration of large renewable generations. In this paper, the system configuration of a China's national renewable generation demonstration project combining a large-scale BESS with wind farm and photovoltaic (PV) power station, all coupled to a power transmission system, is introduced, and the key technologies including optimal control and management as well as operational status of this BESS are presented. Additionally, the technical benefits of such a large-scale BESS in dealing with power fluctuation and intermittence issues resulting from grid connection of large-scale renewable generation, and for improvement of operation characteristics of transmission grid, are discussed with relevant case studies.

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“…A 24-hour representative sample of the RegD signal is shown in Fig. 2 and was obtained by synthesizing the data provided in [13].…”

Section: Pjm Frequency Regulation Marketmentioning

confidence: 99%

Financial assessment of battery energy storage systems for frequency regulation service

Avendaño-Mora

Camm

2015

2015 IEEE Power &Amp; Energy Society General Meeting

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This paper presents a summary of the expected financial performance of battery storage systems providing market-based frequency regulation service for a regional transmission organization. The potential impact of system characteristics and market structure on the profitability of the project is also evaluated. The Discounted Cash Flow analysis was used to determine the benefit-cost ratio, net present value, internal rate of return, and payback period of energy storage projects. The results of this study indicate that larger systems (greater than 5 MW) with fewer battery replacements (up to 2) are expected to have the best financial performance. The findings of this paper add to a growing body of literature on financial analysis of utility-scale energy storage projects.Index Terms-batteries, cost benefit analysis, energy storage, net present value, frequency regulation I.

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Protocol for uniformly measuring and expressing the performance of energy storage systems.

Cited by 22 publications

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Impact of Wind and Solar on the Value of Energy Storage

Impact of Wind and Solar on the Value of Energy Storage

Optimal control and management of a large-scale battery energy storage system to mitigate fluctuation and intermittence of renewable generations

Financial assessment of battery energy storage systems for frequency regulation service

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