Review of real-time electricity markets for integrating Distributed Energy Resources and Demand Response

Wang, Qi; Zhang, Chunyu; Ding, Yi; Xydis, George; Wang, Jianhui; Østergaard, Jacob

doi:10.1016/j.apenergy.2014.10.048

Cited by 303 publications

(167 citation statements)

References 21 publications

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“…This view of political influence on an ESI is shared by Pittman and Zhang [13] when commenting on the Chinese ESI. There has been a lack of incentives to relinquish central control by the government.…”

Section: Theme 2 -Explaining the Perceptions Around The Lack Of Reformentioning

confidence: 98%

“…These notions are also built upon the "standard model of reform" which was developed to explain the evolutionary steps towards liberalisation of an ESI [9], as explained later. A liberalised energy market also aids the functioning of distributed generation when multiple sources of electricity technologies are available [13], [14]. Advanced reforms in electricity generation are consistent with more ambitious renewable energy policy, necessitating concessions to renewable energy constituencies with indications that the politics of power sector reform may encourage new renewable energy policies through the dynamic issue of linkage [15].…”

Section: Introductionmentioning

confidence: 99%

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Review of proposals for practical power sector restructuring and reforms in a dynamic electricity supply industry

Khan

Thopil

Lalk

2016

Renewable and Sustainable Energy Reviews

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South Africa's electricity supply industry (ESI) remains a vertically-integrated monopoly despite global trends towards restructuring. The monopolistic nature of the ESI could hinder the development of distributed power systems as penetration of renewable electricity increases. The research aims to rationalise South Africa's ESI evolution; propose practical power sector restructuring in the short-to-medium term; and to determine their potential impact. The research methodology included a single case study instrument, with embedded sub-units of analysis. Primary research data was gathered using semi-structured interviews with industry experts in addition to which secondary data from government documents and archival records were used for triangulation. Research results conclude that South Africa's ESI grew due to techno-economic industrialisation factors, while Apartheid-era policies influenced the ESI in only some specific respects. The vertically-integrated status quo was sustained in the post-transformation period due to government's focus on social imperatives; lack of regulatory & policy certainty; and conflicts in political ideology. South Africa didn't experience the pre-conditions that triggered global power sector reforms in the late 20 th century but these pre-conditions are now becoming evident. Privatisation of Eskom Generation and introduction of wholesale and retail competition are not practical in the short-to-medium term, proving the infeasibility of the standard model of reform locally. The introduction of an Independent System and Market Operator (ISMO) using a single-buyer model is seen as the most favourable and practical option, with the ISMO owning transmission infrastructure. The research suggests that ESI changes will increase system efficiencies, economic performance and private sector involvement, but will not reduce electricity tariffs. The scenarios, challenges and proposals identified in this research are also applicable to other countries in Africa and other developing regions of the world, that have similar social and political backgrounds, ensuring sustainable supply of electricity.

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Section: Theme 2 -Explaining the Perceptions Around The Lack Of Reformentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Review of proposals for practical power sector restructuring and reforms in a dynamic electricity supply industry

Khan

Thopil

Lalk

2016

Renewable and Sustainable Energy Reviews

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“…the desired forecasted probability density function, can be calculated through the total probability theorem as: 2 Prior parameter knowledge is expressed through corresponding prior distributions, whose parameters are usually called hyper-parameters, and they are denoted by an upper hyphen. The choice of prior distributions depends on the degree of prior confidence the forecaster puts into each parameter.…”

Section: Letmentioning

confidence: 99%

“…However, the integration of distributed energy resources into power networks is a challenging task in the view of their planning, management, and operation; thus, new research contributions are strongly encouraged in this area [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

A New Ensemble Probabilistic Method for Short-Term Photovoltaic Power Forecasting

Bracale¹,

Carpinelli²,

Falco³

2016

Sustainable Energy - Technological Issues, Applications and Case Studies

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The high penetration of photovoltaic (PV) systems led to their growing impact on the planning and operation of actual distribution systems. However, the uncertainties due to the intermittent nature of solar energy complicate these tasks. Therefore, high-quality methods for forecasting the PV power are now essential, and many tools have been developed in order to provide useful and consistent forecasts. This chapter deals with probabilistic forecasting methods of PV system power, since they have recently drawn the attention of researchers as appropriate tools to cope with the unavoidable uncertainties of solar source. A new multi-model probabilistic ensemble is proposed; it properly combines a Bayesian-based and a quantile regression-based probabilistic method as individual predictors. Numerical applications based on actual irradiance data give evidence of the probabilistic performances of the proposed method in terms of both sharpness and calibration.

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“…Electrical distribution networks that integrate generation near consumption centers, Energy Storage Systems (ESSs), and the active participation of the demand present challenges related to the operation, integration, and control of these resources, which are called DERs [1], [2]. This integration creates opportunities to define technical, regulatory, and economic strategies in order to guarantee a safe and reliable operation of isolated or interconnected microgrids [2]- [4], which enables the flexibility of the distribution network and allows the distribution system to provide ancillary services to the transmission system.…”

Section: Introductionmentioning

confidence: 99%

Integration of distributed energy resources in isolated microgrids: the Colombian paradigm

García

Arango-Manrique

Carvajal-Quintero

2018

TecnoL.

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The electrification of rural or isolated areas coupled with increasing environmental concerns have promoted the emergence of Distributed Energy Resources (DER) and the operation by isolated microgrids. However, the integration of such resources involves technical issues related to the reliability and continuity of the electricity supply. Indeed, the uncertainty of renewable generation sources and the reduced inertia of isolated microgrids are challenges for the operation of these distribution systems. One way to address them is by providing ancillary services through all the resources involved in the system’s operation (generation assets, demand share, and storage systems). Accordingly, this paper first presents a literature review of the challenges and potential benefits of integrating DERs into the operation of a distribution system. It also includes some common strategies to mitigate the vulnerability of the introduction of these technologies in microgrids. Afterwards, the current state of each type of resource in Colombia is assessed. Finally, some basic strategies that enhance the benefits of DER integration are outlined along with the overcoming of challenges of microgrid operation in said country. To that end, we consider isolated Colombian regions to be natural laboratories where the effects of DER integration and the requirements for the operation by local production units can be analyzed.

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Review of real-time electricity markets for integrating Distributed Energy Resources and Demand Response

Cited by 303 publications

References 21 publications

Review of proposals for practical power sector restructuring and reforms in a dynamic electricity supply industry

Review of proposals for practical power sector restructuring and reforms in a dynamic electricity supply industry

A New Ensemble Probabilistic Method for Short-Term Photovoltaic Power Forecasting

Integration of distributed energy resources in isolated microgrids: the Colombian paradigm

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