Defining and Evaluating the Capacity Value of Distributed Generation

Dent, Chris; Hernandez-Ortiz, Alex; Blake, Simon; Miller, David; Roberts, David

doi:10.1109/tpwrs.2014.2363142

Cited by 24 publications

(11 citation statements)

References 14 publications

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“…Based on the previously calculated variables, The LIC to a transmission grid supply point is calculated in this paper by considering both the effective capacity ECN and the network effects NEN on the power output of the DGN under analysis: 𝐿𝐼𝐶 𝑁 = 𝐸𝐶 𝑁 − 𝑁𝐸 𝑁 (7) The difference in equation (7), i.e. the LICN, represents the incremental impact on the GSP interface from a particular DG unit (measured in MW) for the correct planning and assessment, other than the model from standard ER P2 [20], of network security, reliability and DG penetration.…”

Section: Locational Incremental Contributionmentioning

confidence: 99%

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DG Locational Incremental Contribution to Grid Supply Level

Hernando‐Gil¹,

Zhang²,

Ndawula³

et al. 2022

IEEE Trans. on Ind. Applicat.

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Due to decarbonisation and decentralisation of energy sectors, the rise of distributed generation (DG) will modify generation and demand patterns at grid supply points (GSPs), where the interface between distribution and transmission systems takes place. With the increasing penetration of such devices, methodologies able to evaluate its contribution to both local distribution network and transmission system become crucial. This paper proposes an analytical method to evaluate the DG locational incremental contribution (LIC) to the interface with the transmission grid. Accordingly, the original model of the UK engineering recommendation P2 is enhanced by studying the impacts from high-voltage distribution networks (i.e. ≤ 132 kV) under normal and contingent conditions. This approach enables a more accurate network security assessment, especially when considering contingencies such as distribution system faults. To illustrate the proposed method, the original P2 model is compared against different enhanced approaches on three basic distribution networks, followed by a case study and a sensitivity analysis on a revised IEEE 14-bus GSP system. The proposed LIC method produces results that assess a wider range of conditions including DG penetration, concentration, and system reliability. Furthermore, it provides an increased DG visibility for transmission planning and operation.

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Section: Locational Incremental Contributionmentioning

confidence: 99%

“…Considerable work was undertaken at power distribution levels to weigh the influence of DG to local network adequacy [7]- [12]. These studies have proposed methods to determine DG's ability to satisfy network's peak demand during normal operations.…”

mentioning

confidence: 99%

DG Locational Incremental Contribution to Grid Supply Level

Hernando‐Gil¹,

Zhang²,

Ndawula³

et al. 2022

IEEE Trans. on Ind. Applicat.

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“…In fact, in existing research, there are two commonly used evaluation indicators, the equivalent firm capacity and the equivalent conventional capacity (ECC). These two indicators can operate well in a wide range of applications (Keane et al, 2011;Dent et al, 2015;Ding and Xu, 2017;Zeng et al, 2020a,b). To keep the description uniform, in this article, the same method is used to present the capacity value.…”

Section: Capacity Value Metricsmentioning

confidence: 99%

Comprehensive Benefit/Cost Analysis of Utilizing PEV Parking Lots as Virtual Energy Storage for the Energy Supply Sustainability of Future Distribution Systems

Zeng

Sun

et al. 2021

Front. Energy Res.

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The proliferation of plug-in electric vehicles has led to increased public charging infrastructure in cities worldwide. Grid-connected parking lot spaces are the most common charging option due to their technological readiness and convenience of adoption. Since the batteries aggregated by parking lots can be regarded as virtual energy storage, grid-connected parking lots are expected to provide many benefits to the urban distribution grid. This paper proposes a comprehensive methodological framework to evaluate the potential benefits and costs of utilizing grid-connected parking lot infrastructures to promote energy supply sustainability in future power distribution grids. Capacity-value-based and cost-effectiveness indexes are developed, which quantify the potential contribution of parking lots to power supply reliability and the associated economic implications. To realistically describe the available generation capacity of parking lot resources, a comprehensive model is presented, which explicitly considers the impact of external stimuli (incentive rates) on the behavioral patterns of lot users. Vehicle user responsiveness to incentive grades is derived from social field surveys. To conduct the evaluation, a hybrid algorithm based on Monte Carlo simulations is employed. The proposed methodology is illustrated on a real distribution grid in Beijing. The results confirm the effectiveness of our proposed approach and support practical policy suggestions.

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“…The extent to which an asset (generator, storage facility, interconnector) participates in these capacity mechanisms is determined by its capacity value, which expresses the effect of the asset on the security of supply in the 'common currency' of an equivalent change in firm load or generation level [2]. There has been substantial interest in defining capacity values for different assets, including tidal barrages [3], wind power [4], solar power [5], energy storage [6] and distributed generation [7].…”

Section: Introductionmentioning

confidence: 99%

Capacity Value of Interconnection Between Two Systems

Tindemans

Woolf

Štrbac

2019

2019 IEEE Power &Amp; Energy Society General Meeting (PESGM)

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Concerns about system adequacy have led to the establishment of capacity mechanisms in a number of regulatory areas. Against this background, it is essential to accurately quantify the contribution to security of supply that results from interconnectors to neighbouring systems. This paper introduces a definition of capacity value for interconnection between two systems in the form of a capacity allocation curve. Four power flow policies are proposed to encompass the full range of possible market outcomes that may affect the capacity value. A convolution-based method is presented to efficiently compute and compare capacity allocation curves, and it is applied to a model system that is inspired by Great Britain's interconnection with the continental Europe. The results indicate areas of interest for the coordination of capacity mechanisms.

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Defining and Evaluating the Capacity Value of Distributed Generation

Cited by 24 publications

References 14 publications

DG Locational Incremental Contribution to Grid Supply Level

DG Locational Incremental Contribution to Grid Supply Level

Comprehensive Benefit/Cost Analysis of Utilizing PEV Parking Lots as Virtual Energy Storage for the Energy Supply Sustainability of Future Distribution Systems

Capacity Value of Interconnection Between Two Systems

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