SETTING AN INNOVATIVE MASTER DEGREE ON ENERGY SUPPLY FOCUSING ON ISOLATED AREAS – THE MESfIA ERASMUS+ PROJECT

International audienceMastering Energy Supply focusing on Isolated Areas (MESfIA) Erasmus+ Capacity Building project, aims to provide high quality postgraduate education on energy supply systems for engineers and graduates from science departments, aiming to have activity or to be employed in projects in countries with many isolated areas and insular systems. It is a transnational cooperation activity between Europe and SouthEast Asian Countries (namely in our case Thailand, Vietnam and Indonesia) to improve capacity of Postgraduate Students in S.E. Asian Universities. Energy efficiency is among the items to be addressed in this training

Reducing solar dish park production volatility utilizing lithium-ion batteries

Summarization: Solar dish-Stirling technology is the Concentrated Solar Power (CSP) technology that can be more easily integrated into Distribution networks due to its small size. However, a disadvantage of this technology is that features shorter thermal inertia and thus, the output is more volatile compared to large scale CSP plants. In this paper, the production of a solar dish-Stirling plant connected to a battery bank forming a Hybrid plant is studied, in order to determine up to what extent the production stabilization can be achieved. A modelling approach of the electricity output of a solar dish system integrated to a lithium-ion battery, is developed. A methodology based on the minimization of the mean square error between the actual and the proposed stabilized production is presented, in order to optimally size the battery bank. Results from the application of the Hybrid plant for typical days of various seasons prove the output capability of such a configuration and the guaranteed power amount of the relevant plant, along with the addition of volatility decrease.Presented on: Periodica Polytechnica Electrical Engineering and Computer Scienc

A methodology exploiting geographical information systems to site a photovoltaic park inside a sustainable community

Summarization: This paper describes a methodology for applying geographical information systems (GIS) tools to site a photovoltaic (PV) park inside a sustainable community, in order, not only to meet all siting restrictions, such as environmental protection, but also to operate a PV park more efficiently reducing the shading effect erection and cabling cost. Additionally, the PV operation impact on the grid is investigated, integrating GIS maps into power systems analysis software, such as the PowerWorld® Simulator. In other words, this paper also stresses the importance of GIS for the design, installation and monitoring of power systems. A case study considering the Campus of the Technical University of Crete has been performed showing that siting properly a PV installation meeting 20% of the demand can gain significant savings in both peak and regular energy demands, especially on peak summer days.Presented on: International Journal of Sustainable Energ

Improving reliability indices of the autonomous power system of Crete Island utilizing extended photovoltaic installations

Summarization: Renewable energy sources (RES) have significantly helped in meeting the electricity demand of Crete, with their share in the energy balance to account for about 25% of the annual electricity production for the past five years. The contribution of photovoltaics (PVs) has been especially significant for the past three years, offering 10% in the peak demand, during summertime. This paper investigates what the capacity credit would be, i.e., up to what extent increasing existing PV capacity by about 20% can be considered as certain, to avoid installing thermal power units. In order to do so, probabilistic techniques have been applied to quantify the load that the installed thermal units in the Cretan power system should be able to meet at any time. In addition, the effect of the additional PV capacity to power system’s reliability is evaluated, introducing a new reliability index and taking into account actual data, regarding the planned and unplanned thermal units’ maintenance. Two scenarios have been examined using actual hourly data for load demand, PV, and wind production from the island power system of Crete. In the first scenario, the calculations were carried out considering the operation of the Cretan power system in its current state, while in the second scenario it was assumed that the PV production has been increased by 20%. Furthermore, we examine how the maximum value of capacity credit can be achieved as the PV installations are extended. In this regard, there is an upper limit of the additional PV capacity that leads to the maximum value of capacity credit.Παρουσιάστηκε στο: Energie

Impact of the Euro-Asia interconnector project on the economic operation of Crete and Cyprus power systems

Summarization: The paper focuses on the potential impact (economic and operational) and potential required upgrades due to interconnection of Cyprus and Crete. Actual data from both island power systems for year 2010 have been used to analyze : The expected flow between the island power systems,the change in committed units and thus operational costs. A preliminary assessment of upgrades required for the Transmission Network and voltage analysisΠαρουσιάστηκε στο: 2nd Conference on the Power Options for the Eastern Mediterranean Regio