1,721,044 research outputs found
Towards a Distributed Autonomous Organisation for Financing, Governing and Disbursing Revenues of a Battery Energy Storage System
Get PDFThe 2022 IEEE 1st Global Emerging Technology Blockchain Forum: Blockchain & Beyond (iGETblockchain), Irvine, California, United States of Ameria, 7-11 November 2022This paper presents a framework for a blockchain-based decentralised autonomous organisation that mediates the financing, governance, and revenue dispersal for a battery energy storage system fully controlled by remote token holders. In the proposed framework, the participants can buy a fractional share of an energy storage asset, embodied as a blockchain token, with corresponding rights and privileges enforced by smart contracts. The token holders continually vote to govern the battery’s operation (charge/float/discharge); these votes are autonomously aggregated by the smart contract, which is also empowered to directly dispatch the battery’s mode of operation by issuing physical control signals. Furthermore, the smart contract itself maintains a financial payment channel with the electricity market, transacting stable coins back and forth as it buys and sells energy from the spot market, per the token holders’ consensus wishes. This paper presents a case study simulation of this radical conception of asset ownership and control, whereby token holders vote based on the real-time price of electricity, their particular electricity price forecast, and the current state of charge of the battery.Science Foundation Irelan
On-demand energy flexibility market via smart contracts to help reduce balancing costs in Great Britain
Get PDFThe large deployment of renewable generation required to reach net-zero carbon emission requires significant investments in transmission network infrastructure to reduce grid congestion, as well as costly investments in dispatchable assets to manage the intermittency of renewable energy. The provision of flexibility services to system operators represents an additional method that could help solve these issues. However, this requires the engagement of a large number of small users, such as households and small commercial firms, that usually cannot directly participate in electricity markets due to their limited size. Blockchain technologies leveraging smart contracts can provide an autonomous, cost-saving and transparent tool to help engage these users in the provision of flexibility services to the grid. The aim of this paper is to design a new market layer for the on-demand provision of flexibility services by using smart contracts fully integrated with existing national-scale electricity markets. We demonstrate how this model can co-exist with the current electricity market architecture in Great Britain (GB), providing a whole-system least-cost solution to solve grid congestion and energy imbalances. Simulations based on a high-fidelity network of GB highlight the potential benefit that the proposed approach could create at the national scale
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Towards a blockchain implementation of a governance & revenue dispersal mechanism for investments in battery energy storage systems
Get PDFThe 2023 IEEE Belgrade PowerTech, Belgrade, Serbia, 25-29 June 2023The rapid onboarding of renewable generation has led to many difficulties for both generators and the grid due to volatile output and market conditions. Battery energy storage systems have begun to alleviate these issues. However, such systems face many financial challenges in their deployment and operation. This paper demonstrates the use of advanced distributed ledger technology with smart contracts to design a decentralised autonomous organisation (DAO) to manage the investments in these systems and optimise their operations. In this paper, a series of smart contracts have been designed, deployed, and tested to demonstrate the effectiveness of such a DAO framework for battery management. The interconnected smart contracts can manage the financing, governing, and revenue-sharing mechanisms, allowing investors to coordinate investment and vote on the battery energy storage system’s operation (charge/float/discharge) for a given period. This interconnected smart contract design implementation demonstrates a novel and effective strategy for managing battery energy storage systems, decreasing barriers to entry for investors, thus, allowing a greater adoption of such technology.Science Foundation Irelan
Cuffe, Paul, Letter.
Get PDFLetter, New Bedford to Perry Locke. States he (Cuffee) is going to Washington to apply to Congress for aid to get to Africa.https://dh.howard.edu/og_corres/1059/thumbnail.jp
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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