Short-Term Trading for a Wind-PV Power Producer in an Electricity Market

This paper deals with the problem of coordinated trading of wind and photovoltaic systems in order to find the optimal bid to submit in a pool-based electricity market. The coordination of wind and photovoltaic systems presents uncertainties not only due to electricity market prices, but also with wind and photovoltaic power forecast. Electricity markets are characterized by financial penalties in case of deficit or excess of generation. So, the aim o this work is to reduce these financial penalties and maximize the expected profit of the power producer. The problem is formulated as a stochastic linear programming problem. The proposed approach is validated with real data of pool-based electricity market of Iberian Peninsula.

Un mercado beneficial: la mercantilización de beneficios eclesiásticos en Castilla y Portugal

Thanks to some classical and recent studies, we know the main features of the huge structure that served as financial support to the secular clergy in the Ancien Régime, the system of benefices. However, almost nothing has been said yet about the process that made possible the conformation around these benefices of a market of transnational nature, controlled by the Holy See, to which outflowed a great amount of capital from the Iberian Peninsula. So these pages are intended to sketch a research line, that of the commodification of ecclesiastical benefices, virtually unattended so far. It will be examined the instruments of this market, its practices and the comparative evolution of the phenomenon in cathedrals of Castile and Portugal.

Empregabilidade e inserção no mercado de trabalho das comunidades ciganas em Portugal e Espanha

A investigação desenvolvida é sobre a empregabilidade e inserção no mercado de trabalho da comunidade cigana portuguesa. Deste ponto de vista, a investigação recai sobre o processo desenvolvido de integração social nas últimas décadas onde se questiona, os Planos de Ação para a Inclusão das Comunidades Ciganas e o seu impacto na vida socioprofissional das mesmas. Para o efeito, será realizado um estudo comparado entre Portugal e Espanha no que concerne ao processo de integração social das comunidades ciganas. Estudos recentes do Instituto Português de Administração e Marketing (IPAM) referem que o emprego é mais difícil de conseguir para pessoas deficientes e pessoas ciganas (os cegos lideram a tabela com 71,6 por cento, seguindo-se a etnia cigana com 47,3).1 Um dos principais obstáculos que se tem verificado em relação à inserção no mercado de trabalho é consequência do problema da discriminação institucional (direta ou indireta)2, relutância por parte das próprias entidades responsáveis pela implementação do desenvolvimento dos programas de emprego. Devido à importância do exercício da cidadania no processo de integração social, realizar-se à uma parte empírica dedicada ao movimento associativo em Portugal e Espanha, de modo a perceber qual o seu envolvimento na definição da política social e respetivas prioridades em relação ao emprego e defesa dos direitos humanos. No quadro da compreensão, será desenvolvido uma investigação qualitativa e quantitativa, com recurso à aplicação de inquérito junto de dirigentes/representantes de ONG´S Ciganas nos dois países, no que concerne à participação/representação das mesmas, na definição de estratégias de intervenção social tendo em conta a politica social nacional e as orientações da União Europeia como é exemplo, a Estratégia Nacional Para a Integração da Comunidade Cigana; EMPLOYABILITY AND INTEGRATION IN THE LABOUR MARKET OF THE GYPSY IN PORTUGAL AND SPAIN Abstract: The research carried out is on employability and inclusion in the Community Portuguese Gypsy labor market. From this point of view, the investigation lies with the developed process of social integration in recent decades where it questions the Action Plans for Inclusion of Roma communities and their impact on the socio-professional life of the community Gypsy. For this purpose, a comparative study between Portugal and Spain regarding the process of social integration of Roma will be held. Recent studies of the Portuguese Institute of Administration and Marketing (IPAM), indicate that employment is more difficult to achieve for disable people and Roma people (the blind lead the table with 71.6 percent, followed by 47%). One of the main obstacles that has been seen in relation to the insertion in the labor market is a result of the problem of institutional discrimination (direct or indirect), reluctance by the very entities responsible for implementing the development of employment programs. Because of the importance of citizenship in the social integration process, carried out the empirical part dedicated to the associative movement in Portugal and Spain, in order to understand what their involvement in the definition of social policy and respective priorities in relation to employment and defense of human rights. In the context of understanding, a qualitative research will be developed, using the application survey of leaders / representatives of NGOs Roma in both countries, with respect to participation / representation of the same in the definition of social intervention strategies taking into account national social policy and the guidelines of the European Union as example, the national Strategy for the Integration of Roma Community.

Optimal Wind Bidding Strategies in Day-Ahead Markets

This paper presents a computer application for wind energy bidding in a day-ahead electricity market to better accommodate the variability of the energy source. The computer application is based in a stochastic linear mathematical programming problem. The goal is to obtain the optimal bidding strategy in order to maximize the revenue. Electricity prices and financial penalties for shortfall or surplus energy deliver are modeled. Finally, conclusions are drawn from an illustrative case study, using data from the day-ahead electricity market of the Iberian Peninsula.