Search results for " small Island"
showing 10 items of 13 documents
Impact of Demand Response Control Logic on Isolated Island's Distribution Networks
2019
The work presents the results of a study regarding the impact of some Demand Response control logics on an isolated distribution network. The proposed control is divided into precise steps in which the coordination between the general aggregator controller and the single local Energy Management Systems is developed and illustrated with details. The control is applied to the flexible loads and to the storage systems of photovoltaic plants installed at the end-users' houses and connected to the network. The study is carried out delivering a suitable network model of the island's system, with the implementation of load profiles for all the loads of the network for a total simulation time of 24…
Desalination by sea wave in small islands: The case of study of Lampedusa (Italy)
2018
The paper analyses the theme of water energy nexus, investigating a specific industrial process: desalination. In particular, the paper reports a case of study, applied in the small island of Lampedusa, located at south of Sicily (Italy). As the many small islands in the middle of the Mediterranean Sea, Lampedusa presents a small electrical grid, not connected to the mainland. The electrical production is entrusted to old diesel engines, consuming fossil fuel, transported by boat from Sicily. Besides, the renewable energy sources are extremely underdeveloped in this territory, since the environmental constraints make complex the use of technologies, like wind turbines or photovoltaic panels…
Assessing the feasibility of cogeneration retrofit and district heating/cooling networks in small Italian islands
2017
Sustainability of energy supply strategies in small islands has been emerging as a severe issue, due to the large margins for improvement and rationalization of the most frequently adopted solutions. In most of the European islands, large amounts of heat are wasted by the operation of engine-based power plants; conversely, heat is produced by boilers (supplied by liquid fuels) or by electric equipment for a number of different uses, like domestic hot water production or space heating in winter. In this paper a techno-economic analysis is proposed to assess the feasibility of CHP-retrofit of the existing power plants and the possible utilization of the recovered heat to supply, via a distric…
Near zero energy islands in the Mediterranean: Supporting policies and local obstacles
2014
Abstract Based on a recent technical–economical analysis on the island of Pantelleria, a policy feasibility study for a complete upgrading of the energy system of this Mediterranean Island is carried out. Pantelleria, situated between Sicily and Africa, owns a large potential in terms of renewable energy resources, although there are some obstacles in turning it into a Near Zero Energy system. Starting from a deep energy system audit, the study proposes the project for a near zero energy island, through the efficient transformation of the different existing natural energy resources into electrical energy and heat: the solar, the wind-based and the geothermal systems. In this way, the island…
Mapping Seasonal Variability of Buildings Electricity Demand profiles in Mediterranean Small Islands
2023
In communities with a high tourist influx and warm climate, such as Mediterranean small islands, the energy demands for space cooling and domestic hot water are expected to significantly increase during summer. Considering the current energy context, for succeeding energy transition and reducing the dependency on not endogenous fossil fuels, it is paramount to increase the deployment of renewable sources of energy, especially wind and solar which, however, are aleatory and unpredictable. Hence, to reduce the high costs for energy supply in these contexts, the analysis of the variation of energy consumption is fundamental. Moreover, mapping the spatial distribution of energy profiles can be …
Sulla presenza di Erctella mazzullii (De Cristofori & Jan, 1832) (Gastropoda: Helicidae) nella Riserva Naturale di Isola delle Femmine (Palermo, Sici…
2021
[On the presence of Erctella mazzullii (De Cristofori & Jan, 1832) (Gastropoda: Helicidae) in the Nature Reserve of Isola delle Femmine (Palermo, Sicily, Italy)] The presence of a living population of Erctella mazzullii (De Cristofori & Jan, 1832) (Gastropoda: Helicidae), endemic species of the coastal strip of the Palermo Mountains (Sicily), from Isola delle Femmine or Isola di Fuori (Isola delle Femmine Nature Reserve) is confirmed
An Economic Approach to Size of a Renewable Energy Mix in Small Islands
2022
The importance of renewable energy exploitation reduces the energy dependence on fossil fuels. Despite technological progress, in several remote areas and small islands the energy production is nowadays dominated by the utilization of fossil fuels. With new, increasingly stringent laws on polluting emissions and the need to lower production costs, it is necessary to exploit as many renewable sources as possible. In order to implement these considerations, it was decided to study renewable energy production. The study was carried out by estimating the energy production on a monthly and annual basis considering a mix of three plants, namely marine, solar, and wind. Simulations on wave product…
Wave Energy Assessment and Performance evaluation in Mediterranean Sea
2020
The paper proposes a revolutionary device for the utilization of a new entry of renewable energy sources: sea wave. This technology is based on linear generators, able to converts directly a linear motion into electrical output, limiting to minimum the chain of energy conversion. A preliminary feasibility assessment considers a case study applied in Lampedusa, a small island in the Mediterranean Sea. Economic and environmental evaluations are here reported.
A sustainable energy production: Sea Wave in the small island of Ustica (Italy)
2018
Nowadays the electrical energy production is based on fossil fuels in the greatest part of smaller islands in the Mediterranean Sea. Despite the availability, the renewable energy sources are practically unused, as landscape constraints. So, the paper presents the case of study of Ustica, a small island located at north of Sicily, in the middle of Mediterranean Sea. Starting with the analysis of the electrical energy consumption of public buildings, the paper suggests an energetic scenario, based on solar and sea wave. In particular, in order to use this new resource, the paper presents an innovative wave energy converter. Finally, the energetic and economic evaluations encourage the realiz…
The Viticulture of Lampedusa, a heritage which is disappearing before being known.
2010
The study is focused on the viticulture of the island of Lampedusa, located in the strait of Sicily 113 km from the African coast and 205 km from the Sicilian coasts. It is a study that has no previous recorded documentations. The research was conducted on the island to a various number of vineyard farmers in order to describe cultivation techniques and the grape germplasm utilized. Viticulture is present on several tens of hectares but in recent years is vanishing quickly and currently survives thanks to a small number of old farmers who still practice agriculture. Moreover, the strong competition for land use strongly linked to tourism, makes the survival of farming in general even more p…