91 research outputs found
Participation of Electric Vehicle Aggregators in Wholesale Electricity Markets: Recent Works and Future Directions
Electric Vehicles are key to reducing carbon emissions while bringing a revolution to the transportation sector. With the massive increase of EVs in road networks and the growing demand for charging services, the electric power grid faces enormous system reliability and operation stability challenges. Demand and supply disparities create inconsistency in the smooth delivery of electrical power. As a potential solution, EVs and their charging infrastructure can be aggregated to prevent the unwanted effects on power systems and also facilitate ancillary services to the power grid. When not need for transportation purposes, EVs can leverage their batteries for power grid services by participating in the electricity market via mechanisms coordinated by system operators. Hence, the market participation of EV infrastructure can help alleviate the power grid stress during peak periods. However, further research is needed to demonstrate the multiple benefits to both EV owners and power grid operators. This paper briefly overviews the existing literature on market participation of EV aggregators, discuss associated challenges and needs, and propose research directions for future research
Essays on the Demand-Side Management in Electricity Markets
This Ph.D. thesis focuses on the demand-side management in electricity markets and a
new player in the market { an aggregator of
exible demand. The thesis consists of three
independent chapters investigating the entrance of this new player in the power markets
from di erent angles: focusing on the aggregator, a large power consumer and a producer.
The rst chapter, \Aggregation of demand-side
exibility in electricity markets: the e ects
of portfolio choice", analyses the performance of the aggregator depending on its portfolio
choice. I have investigated several portfolios of di erent
exibility sources: electrical vehi-
cles, heat pumps and/or home appliances like washing machines, dryers and dish washers.
I have used Nord Pool power market data for Denmark's bidding area DK2 to identify the
e ects of the portfolio choice on the imbalance payments and compensations to consumers
that provide
exibility. The results show that di erent compositions of
exibility sources
lead to di erent imbalance payments and compensations to consumers. However, there is no
signi cant additional value of having an access to all types of
exibility sources unless there
is a xed contract cost. This suggests that the aggregator would choose to specialise in cer-
tain types of
exibility sources. Also, I nd that the incentives for consumers to participate
in demand-side management programs might be not su cient, since the compensation for
the provided
exibility is very low
Renewable Energy Communities and Public Private Partnership: the case of Montevarchi
Il presente elaborato tratta il tema del Partenariato Pubblico Privato applicato alle Comunità Energetiche Rinnovabili (CER) nel panorama italiano. A seguito dell'individuazione del progetto di CER nel Comune di Montevarchi (AR), interamente sviluppato in regime di PPP e coerente con il D.Lgs 199/2021, che da attuazione alla Direttiva RED II dell'Unione Europea, e allo studio della letteratura in merito alle CER, è stato possibile rispondere alla domanda di ricerca, ovvero se effettivamente il PPP è la migliore alternativa per implementare un CER nel Comune di Montevarchi, considerando gli interessi degli stakeholder promotori. Quindi è stata svolta la Multi-Actor-multi Criteria Analysis, che attraverso interviste semi-strutturate e questionari sottoposti al Sindaco del Comune e al privato proponente, è stato possibile valutare, relativamente ad altre modalità implementate da altre CER nel territorio italiano, che il PPP rappresenta la migliore alternativa che si propone di soddisfare maggiormente gli interessi delle parti. Fatti salvo i limiti che derivano principalmente che l'iniziativa è ancora in stato iniziale e l'incertezza normativa che caratterizza queste realtà innovative, la metodologia utilizzata viene proposta per future iniziative di CER in modo da coinvolgere il maggior numero di stakeholder già dalle fasi iniziali dell'iniziativa, oltre che sensibilizzare contestualmente i futuri utenti al tema dell'energia rinnovabile e condivisa, elemento senza il quale queste non potrebbero emergere ed operare.This thesis deals with the theme of the Public Private Partnership applied to the Renewable Energy Communities (RECs) in the Italian panorama. Following the identification of the CER project in the Municipality of Montevarchi (AR), entirely developed under the PPP regime and consistent with Legislative Decree 199/2021, which implements the European Union's RED II Directive, and the study of the literature on RECs, it was possible to answer the research question, as that whether the PPP is actually the best alternative to implement a REC in the Municipality of Montevarchi, considering the interests of the promoting stakeholders. Then the Multi-Actor-multi Criteria Analysis was carried out, which through semi-structured interviews and questionnaires submitted to the Mayor of the Municipality and to the private proponent, it was possible to evaluate, in relation to other methods implemented by other RECs in the Italian territory, that the PPP represents the best alternative that aims to better satisfy the interests of the parties. Without prejudice to the limitations that mainly derive from the fact that the initiative is still in an initial stage and the regulatory uncertainty that characterizes these innovative realities, the methodology used is proposed for future REC initiatives in order to involve the largest number of stakeholders right from the initial stages of the initiative, as well as simultaneously sensitizing future users to the theme of renewable and shared energy, an element without which they could not emerge and operate
Investigation on electricity market designs enabling demand response and wind generation
Demand Response (DR) comprises some reactions taken by the end-use customers to decrease
or shift the electricity consumption in response to a change in the price of electricity or a
specified incentive payment over time. Wind energy is one of the renewable energies which
has been increasingly used throughout the world. The intermittency and volatility of
renewable energies, wind energy in particular, pose several challenges to Independent
System Operators (ISOs), paving the way to an increasing interest on Demand Response
Programs (DRPs) to cope with those challenges. Hence, this thesis addresses various
electricity market designs enabling DR and Renewable Energy Systems (RESs) simultaneously.
Various types of DRPs are developed in this thesis in a market environment, including
Incentive-Based DR Programs (IBDRPs), Time-Based Rate DR Programs (TBRDRPs) and
combinational DR programs on wind power integration. The uncertainties of wind power
generation are considered through a two-stage Stochastic Programming (SP) model. DRPs are
prioritized according to the ISO’s economic, technical, and environmental needs by means of
the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) method. The
impacts of DRPs on price elasticity and customer benefit function are addressed, including
the sensitivities of both DR parameters and wind power scenarios. Finally, a two-stage
stochastic model is applied to solve the problem in a mixed-integer linear programming (MILP)
approach. The proposed model is applied to a modified IEEE test system to demonstrate the
effect of DR in the reduction of operation cost.A Resposta Dinâmica dos Consumidores (DR) compreende algumas reações tomadas por estes
para reduzir ou adiar o consumo de eletricidade, em resposta a uma mudança no preço da
eletricidade, ou a um pagamento/incentivo específico. A energia eólica é uma das energias
renováveis que tem sido cada vez mais utilizada em todo o mundo. A intermitência e a
volatilidade das energias renováveis, em particular da energia eólica, acarretam vários
desafios para os Operadores de Sistema (ISOs), abrindo caminho para um interesse crescente
nos Programas de Resposta Dinâmica dos Consumidores (DRPs) para lidar com esses desafios.
Assim, esta tese aborda os mercados de eletricidade com DR e sistemas de energia renovável
(RES) simultaneamente. Vários tipos de DRPs são desenvolvidos nesta tese em ambiente de
mercado, incluindo Programas de DR baseados em incentivos (IBDRPs), taxas baseadas no
tempo (TBRDRPs) e programas combinados (TBRDRPs) na integração de energia eólica. As
incertezas associadas à geração eólica são consideradas através de um modelo de
programação estocástica (SP) de dois estágios. Os DRPs são priorizados de acordo com as
necessidades económicas, técnicas e ambientais do ISO por meio da técnica para ordem de
preferência por similaridade com a solução ideal (TOPSIS). Os impactes dos DRPs na
elasticidade do preço e na função de benefício ao cliente são abordados, incluindo as
sensibilidades dos parâmetros de DR e dos cenários de potência eólica. Finalmente, um
modelo estocástico de dois estágios é aplicado para resolver o problema numa abordagem de
programação linear inteira mista (MILP). O modelo proposto é testado num sistema IEEE
modificado para demonstrar o efeito da DR na redução do custo de operação
Proceedings of the International Conference on Energising the SDGs through Appropriate Technology and Governance
This volume presents the papers presented at the international conference on Energising the SDGs through appropriate technology and governance. Papers were presented in eight sessions. In addition, there was a keynote speech, a panel discussion, a workshop on Sustainability Compass and a lunch-time poster session. This compendium provides a summary of the event and includes original papers and posters delivered at the conference. These covered various themes, including climate action plan in UK and Japanese cities and their alignment with the SDGs; sustainable energy access; contribution of renewable energies, urban design and sustainable development goals, tools for evaluation and monitoring of progress with the SDGs, and innovations and business models for various services
Can Upward Brand Extensions be an Opportunity for Marketing Managers During the Covid-19 Pandemic and Beyond?
Early COVID-19 research has guided current managerial practice by introducing
more products across different product categories as consumers tried to avoid
perceived health risks from food shortages, i.e. horizontal brand extensions. For
example, Leon, a fast-food restaurant in the UK, introduced a new range of ready
meal products. However, when the food supply stabilised, availability may no
longer be a concern for consumers. Instead, job losses could be a driver of higher
perceived financial risks. Meanwhile, it remains unknown whether the perceived
health or financial risks play a more significant role on consumers’ consumptions.
Our preliminary survey shows perceived health risks outperform perceived
financial risks to positively influence purchase intention during COVID-19. We
suggest such a result indicates an opportunity for marketers to consider
introducing premium priced products, i.e. upward brand extensions. The risk-as�feelings and signalling theories were used to explain consumer choice under risk may adopt affective heuristic processing, using minimal cognitive efforts to
evaluate products. Based on this, consumers are likely to be affected by the salient
high-quality and reliable product cue of upward extension signalled by its
premium price level, which may attract consumers to purchase when they have
high perceived health risks associated with COVID-19. Addressing this, a series of
experimental studies confirm that upward brand extensions (versus normal new
product introductions) can positively moderate the positive effect between
perceived health risks associated with COVID-19 and purchase intention. Such an
effect can be mediated by affective heuristic information processing. The results
contribute to emergent COVID-19 literature and managerial practice during the
pandemic but could also inform post-pandemic thinking around vertical brand
extensions
Kreative acts of strategy (kaos): a business plan for a new type of small consultancy
M310: Marketing
Z100: Cultural Economics; Economic Sociology; Economic AnthropologyThe proposed business is designed as a small Creative Brand Consulting and Collaborative
Innovation firm that caters to Small-to-Medium sized (SME) consumer goods/services
producing enterprises. It derives its innovative approach from a proprietary framework, which
is implemented as an analysis tool to audit a client’s business in a strategically new way. The
ASP framework draws its pillars, Authenticity, Sustainability, and Product Functionality from
the condensation of contemporary discourse about these topics. All of the pillar traits can be
found in many of today’s successful, global brands, which encourages to manifest them as a
strategically applicable tool. The overall goal is hereby to reduce so-called negative
externalities, that is, to reduce environmental/societal harm and to enhance outcomes’
functional value to eventually create a more friendly but efficient co-living environment. It is
believed that doing so increases a brands’ intrinsic value through claiming a socially
beneficial purpose apart from the purpose to grow infinitely. Apart from offering
Management Consulting services for small businesses within the respective context, the
proposed plan stipulates a risk diversification through the offer of additional business
services. The innovative approach focuses on a lean business structure, which entails to form
a “temporary” enterprise by collaborating with contractors only when needed, that is, project
based. The proposed business aims to grow slowly and organically, as it is demanded by its
values and its mission to successfully shape a consumption environment that both grows and
produces positive societal outcomes.O negócio proposto é designado como uma pequena consultoria criativa de marca e firma de
inovação colaborativa que presta serviços a pequenas e médias empresas (PME) produtoras de
bens consumíveis (englobando também, nesta categoria, bens perecíveis) e/ou serviços.
As estratégias inovadoras, na qual os serviços propostos neste negócio são baseados, derivam
de um framework da empresa que é implementado como uma ferramenta de análise, de modo
a auditar o negócio do cliente duma nova forma estratégica, na qual foi dada a definição de
ASP framework. O ASP framework cria os seus pilares, Autenticidade, Sustentabilidade, e
funcionalidade do Produto, como um resultado da condensação de discursos contemporâneos
referentes aos mesmos. Todas as características dos pilares podem ser encontrados em
inúmeras marcas globais de sucesso, pelo que encoraja a manifestá-las como uma estratégia
aplicável.Tendo por base de aplicação o meio retratado precedentemente, o objetivo é reduzir
as negatividades externas, ou seja, reduzir perigos ambientais e sociais de modo a aprimorar o
valor funcional (resultados) com o intuito de criar um ambiente eficiente de coabitação
societal e, eventualmente, mais amigável. A sua aplicação é espectável na medida que
contribui para um incremento no valor intrínseco da marca, reivindicando uma proposta de
benefício social e contrariando a proposta comum de crescimento infinito. Para além de
oferecer consultoria de gestão de serviços para pequenas empresas (PE), englobadas no
respetivo contexto, o plano proposto estipula uma diversificação de riscos através duma oferta
adicional de serviços de negócios. Esta aproximação inovadora foca-se numa estrutura de
aprendizagem do negócio, que consiste na formação de uma empresa temporária, colaborando
com contratantes apenas quando preciso consoante o projeto. Em suma, o negócio proposto
procura um crescimento vagaroso e orgânico, tal como é exigido através dos seus valores e
missão para moldar, com sucesso, um ambiente de consumismo que não só cresce mas
também contribui positivamente para resultados sociais
Three Empirical Studies in Market Design
Market design is the development of mechanisms that improve market efficiency and build on an understanding of the interaction between human behavior and market rules. The first chapter considers the sale of a charitable membership where the charity poses the market design question of how to price these memberships to capture the maximum value from donors' altruism. Using an online natural field experiment with over 700,000 subjects, this chapter tests theory on price discounts and shows large differences in donation behavior between donors who have previously given money and/or volunteered. For example, framing the charity's membership price as a discount increases response rates and decreases conditional contributions from former volunteers, but not from past money donors. This chapter thereby demonstrates the importance of conditioning fundraising strategies on the specifics of past donation dimensions.
The second chapter examines an auction used to solve the assignment and price determination problems where price depends on the propensity to own or farm the land, a non-market good. This chapter studies bidder behavior in a reverse auction where landowners compete to sell and retire the right to develop their farmland. A reduced form bidding model is used to estimate the role of bidder competition, winner's curse correction, and the underlying distribution of private values. The chapter concludes that the auction enrolled as much as 3,000 acres (12 percent) more than a take-it-or-leave-it offer (i.e., non-auction program) would have enrolled for the same budgetary cost.
Finally, the third chapter considers the online advertising word auction. The pricing determination and assignment problem must occur for over 2,000 consumer searches each second. Theory is developed where asymmetric advertisers compete and an advertiser-optimal equilibrium bidding strategy is presented that is robust to this asymmetry. Within this rich strategy space, it is shown that advertiser subsidization can be revenue increasing for the search engine. Using a novel dataset of more than 4,500 keyword bids by three firms on four search engines, a simulation of the auction environment illustrates that bidder subsidization is indeed revenue positive and can be improved upon by imposing bid caps or fixed bids on the subsidized bidder
Solving Multi-objective Integer Programs using Convex Preference Cones
Esta encuesta tiene dos objetivos: en primer lugar, identificar a los individuos que fueron víctimas de algún tipo de delito y la manera en que ocurrió el mismo. En segundo lugar, medir la eficacia de las distintas autoridades competentes una vez que los individuos denunciaron el delito que sufrieron. Adicionalmente la ENVEI busca indagar las percepciones que los ciudadanos tienen sobre las instituciones de justicia y el estado de derecho en Méxic
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