scholarly journals Building a Community of Users for Open Market Energy

Energies ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 2330 ◽  
Author(s):  
Joao Ferreira ◽  
Ana Martins

Energy markets are based on energy transactions with a central control entity, where the players are companies. In this research work, we propose an IoT (Internet of Things) system for the accounting of energy flows, as well as a blockchain approach to overcome the need for a central control entity. This allows for the creation of local energy markets to handle distributed energy transactions without needing central control. In parallel, the system aggregates users into communities with target goals and creates new markets for players. These two approaches (blockchain and IoT) are brought together using a gamification approach, allowing for the creation and maintenance of a community for electricity market participation based on pre-defined goals. This community approach increases the number of market players and creates the possibility of traditional end users earning money through small coordinated efforts. We apply this approach to the aggregation of batteries from electrical vehicles so that they become a player in the spinning reserve market. It is also possible to apply this approach to local demand flexibility, associated with the demand response (DR) concept. DR is aggregated to allow greater flexibility in the regulation market based on an OpenADR approach that allows the turning on and off of predefined equipment to handle local microgeneration.

2021 ◽  
Author(s):  
Alberto Vannoni ◽  
Jose Angel Garcia ◽  
Weimar Mantilla ◽  
Rafael Guedez ◽  
Alessandro Sorce

Abstract Combined Cycle Gas Turbines, CCGTs, are often considered as the bridging technology to a decarbonized energy system thanks to their high exploitation rate of the fuel energetic potential. At present time in most European countries, however, revenues from the electricity market on their own are insufficient to operate existing CCGTs profitably, also discouraging new investments and compromising the future of the technology. In addition to their high efficiency, CCGTs offer ancillary services in support of the operation of the grid such as spinning reserve and frequency control, thus any potential risk of plant decommissioning or reduced investments could translate into a risk for the well-functioning of the network. To ensure the reliability of the electricity system in a transition towards a higher share of renewables, the economic sustainability of CCGTs must be preserved, for which it becomes relevant to monetize properly the ancillary services provided. In this paper, an accurate statistical analysis was performed on the day-ahead, intra-day, ancillary service, and balancing markets for the whole Italian power-oriented CCGT fleet. The profitability of 45 real production units, spread among 6 market zones, was assessed on an hourly basis considering local temperature, specific plant layouts, and off-design performance. The assessment revealed that net income from the ancillary service market doubled, on average, the one from the day-ahead energy market. It was observed that to be competitive in the ancillary services market CCGTs are required to be more flexible in terms of ramp rates, minimum environmental loads, and partial load efficiencies. This paper explores how integrating a Heat Pump and a Thermal Energy Storage within a CCGT could allow improving its competitiveness in the ancillary services market, and thus its profitability, by means of implementing a model of optimal dispatch operating on the ancillary services market.


2020 ◽  
Vol 4 (1) ◽  
pp. 76-89
Author(s):  
Aijaz Ali Khoso ◽  
Muhammad Shahbaz Manj ◽  
Abu Sufian Qazi Furqan Ahmad

Islam is a nonviolent and peaceful religion, everyone either Muslim and non-Muslim can get the safety in the shade of this religion. Allah (SWT) chose it for mankind. Its teachings are regarding the justice, equality, brotherhood, peace and harmony etc. Pakistan has been made on the name of Islam. Its rules and policies should be according to Islamic teachings, therefore. But, the present conditions are quite different. We have forgotten the sacrifices and real efforts of our elders (seniors) in getting this country, unfortunately. As well as, we also ignored the Islamic teachings, whereas our lives are entirely dependent on them. Islam advises for showing obedience concerning implemented rules of society. It needs to maintain peace and tranquil in society. But, we are not following the implemented rules. Due to which, we are facing the critical and misery situations in society, such as murder, injustice, robbery, harassment in different forms, domestic violence, acid throwing, wife beating, rape/gang rape, child harassment, child marriages and jealousy etc. Actually, due to breaking the rules, we are going towards ruin with the passage of time. However, we do not accept it and even, we are in this misconception that we are moving towards development. In reality, this thought is a reason to create an unpleasant environment in society. Although, we can eliminate disobedience only in this form that we follow the Islamic teachings strictly and give significance to the implemented rules of society. Then the creation of a pleasant atmosphere would be possible in society. The aim of this research work was to explain the circumstances of contemporary society in the light of Islamic teachings. The method of qualitative and quantitative have been used in this research work, for this purpose one hundred people of Peshawar have been taken and questionnaires have been filled by them to know their views. The majority of people gave their response that the disobedience of implemented laws of state is a main reason of violent environment in state. Therefore we should follow the implemented rules of state and strickly act upon on Islamic teachings, then we would be able to produce peace, harmony, brotherhood and justice in enironment of society. This research work may be significance due to its specific theme and field work for researchers and readers.


Author(s):  
S. Srinivasan ◽  
S. P. Alampalayam

Mobile ad hoc networks (MANET) present the opportunity to connect transient nodes to the internet without having central control. This very design supports new nodes to join and leave the network based on their proximity to the MANET. Concurrently, it creates many security challenges for authenticating nodes that are not present in a traditional wired network. Much of the existing work on MANET security has focused on routing and mobility. In this paper, the authors present an algorithm that considers the neighboring nodes’ status to determine if a particular node is malicious or not. The authors used NS2 simulation tool to test the algorithm and present the results in the paper. The major benefits of this research work are in military applications.


2011 ◽  
pp. 929-947
Author(s):  
Patrocinio Zaragoza-Saez ◽  
Enrique Claver-Cortes ◽  
Diego Quer-Ramon

Knowledge is one of the basic production factors owned by enterprises, and knowledge management is one of the main dynamic capabilities on which enterprises can base their competitive advantages. The creation, transfer, and later use of knowledge have become increasingly important, and multinational corporations (MNCs), being scattered in various places, constitute the appropriate environment to implement knowledge management processes meant to maximize their intellectual assets. This chapter has as its aim to answer three questions: (a) what actions do MNCs undertake in order to set knowledge management processes in motion; (b) what main variables impact on their knowledge creation capability; and (c) what main variables impact on their knowledge transfer capability? A qualitative research work based on a multiple case study has served to achieve that aim, allowing us to carry out an exploratory study of six MNCs which have shown their proactivity in the knowledge management area. The results of the analysis have led to eight propositions which highlight the most relevant variables facilitating the processes for the creation and transfer of knowledge within a MNC.


2020 ◽  
Vol 12 (9) ◽  
pp. 3862 ◽  
Author(s):  
Dimitrios Drosos ◽  
Grigorios L. Kyriakopoulos ◽  
Garyfallos Arabatzis ◽  
Nikolaos Tsotsolas

During the last decade, the demand for electricity has increased significantly, both for companies and consumers. Therefore, in every country, there are companies developing and functioning to provide various forms of electric energy. The quality of the services that they provide has been of major concern for these companies for the last few years. The objective of this study is to examine residential customers’ satisfaction of electricity providers in Greece regarding various factors, such as the products, services, customer service, and the pricing policy. The present research was conducted with the use of a specially developed website questionnaire; 689 questionnaires were collected from January to June, 2019. The results were analyzed with the multicriteria satisfaction analysis (MUSA) method, which is considered as an aggregation–disaggregation approach developed on the qualitative analysis regression. The results of the study showed that the residential customers were quite satisfied. More specifically, the average global satisfaction index of the residential customers was about 52.15%. Using the results of this study, electricity providers will have the chance to frame their future products and services so as to keep their industrial customers satisfied. This empirical study may serve as a reference for other electricity providers who desire to carry out similar studies in the future.


Sincronía ◽  
2021 ◽  
Vol XXV (80) ◽  
pp. 675-705
Author(s):  
Elizabeth Leticia Souza Mosqueda ◽  
◽  
Martín Moreno Reynaga ◽  
Angelica Jesús Ceceña Altamirano ◽  
Cynthia Ramírez Ramírez ◽  
...  

This research work develops the problem of the application of the legal framework of the right to water for its protection and reparation as well as to the environment, since this is closely related to the first mentioned right, when there is an affectation. For this, we study the case of the Santiago River, one of the most important bodies of water in Mexico and with the longest length.For this reason, when we talk about the Santiago River we will refer to the body of water located in the municipalities of Juanacatlán and Salto del State of Jalisco, which, for a long time, was contaminated by dumping various types of substances, without measures being taken to reduce said activity to date. This is done with the study of the national and international legal framework on the matter, to later develop the circumstances in which they caused the damage to the River, and like these, they encouraged the various authorities to issue resolutions trying to repair the damage. Despite the existence of such determinations, they are not sufficient for the protection of this right, so in the end we propose the creation of an environmental court that is capable of solving these types of problems.


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