24,273 research outputs found
An Exchange Mechanism to Coordinate Flexibility in Residential Energy Cooperatives
Energy cooperatives (ECs) such as residential and industrial microgrids have
the potential to mitigate increasing fluctuations in renewable electricity
generation, but only if their joint response is coordinated. However, the
coordination and control of independently operated flexible resources (e.g.,
storage, demand response) imposes critical challenges arising from the
heterogeneity of the resources, conflict of interests, and impact on the grid.
Correspondingly, overcoming these challenges with a general and fair yet
efficient exchange mechanism that coordinates these distributed resources will
accommodate renewable fluctuations on a local level, thereby supporting the
energy transition. In this paper, we introduce such an exchange mechanism. It
incorporates a payment structure that encourages prosumers to participate in
the exchange by increasing their utility above baseline alternatives. The
allocation from the proposed mechanism increases the system efficiency
(utilitarian social welfare) and distributes profits more fairly (measured by
Nash social welfare) than individual flexibility activation. A case study
analyzing the mechanism performance and resulting payments in numerical
experiments over real demand and generation profiles of the Pecan Street
dataset elucidates the efficacy to promote cooperation between co-located
flexibilities in residential cooperatives through local exchange.Comment: Accepted in IEEE ICIT 201
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Introducing Competition in the French Electricity Supply Industry: The Destabilisation of a Public Hierarchy in an Open Institutional Environment
The French electricity supply industry is characterized by a vertically integrated monopoly and public ownership and when the government introduced market rules, it was with the aim of preserving the integration of the public incumbent as a national champion. This had two paradoxical effects in favour of competition development and the building of safeguards for entrants
Setting Standards for Fair Information Practice in the U.S. Private Sector
The confluence of plans for an Information Superhighway, actual industry self-regulatory practices, and international pressure dictate renewed consideration of standard setting for fair information practices in the U.S. private sector. The legal rules, industry norms, and business practices that regulate the treatment of personal information in the United States are organized in a wide and dispersed manner. This Article analyzes how these standards are established in the U.S. private sector. Part I argues that the U.S. standards derive from the influence of American political philosophy on legal rule making and a preference for dispersed sources of information standards. Part II examines the aggregation of legal rules, industry norms, and business practice from these various decentralized sources. Part III ties the deficiencies back to the underlying U.S. philosophy and argues that the adherence to targeted standards has frustrated the very purposes of the narrow, ad hoc regulatory approach to setting private sector standards. Part IV addresses the irony that European pressure should force the United States to revisit the setting of standards for the private sector
Fueling Fair Practices: A Road Map to Improved Public Policy for Used Car Sales and Financing
Examines inequalities in the used car sales and financing market and recommends federal and state reforms to protect buyers from abuse, dangerous cars, and arbitrary repossession and ensure the strongest protections
Cloud provider capacity augmentation through automated resource bartering
© 2017 Elsevier B.V. Growing interest in Cloud Computing places a heavy workload on cloud providers which is becoming increasingly difficult for them to manage with their primary data centre infrastructures. Resource scarcity can make providers vulnerable to significant reputational damage and it often forces customers to select services from the larger, more established companies, sometimes at a higher price. Funding limitations, however, commonly prevent emerging and even established providers from making a continual investment in hardware speculatively assuming a certain level of growth in demand. As an alternative, they may opt to use the current inter-cloud resource sharing systems which mainly rely on monetary payments and thus put pressure on already stretched cash flows. To address such issues, a new multi-agent based Cloud Resource Bartering System (CRBS) is implemented in this work that fosters the management and bartering of pooled resources without requiring costly financial transactions between IAAS cloud providers. Agents in CRBS collaborate to facilitate bartering among providers which not only strengthens their trading relationships but also enables them to handle surges in demand with their primary setup. Unlike existing systems, CRBS assigns resources by considering resource urgency which comparatively improves customers’ satisfaction and the resource utilization rate by more than 50%. The evaluation results verify that our system assists providers to timely acquire the additional resources and to maintain sustainable service delivery. We conclude that the existence of such a system is economically beneficial for cloud providers and enables them to adapt to fluctuating workloads
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