The use of local materials for low-energy service buildings in touristic island: The case study of Favignana island

Piras, Giuseppe; Pennacchia, Elisa; Barbanera, Federica; Cinquepalmi, F.

doi:10.1109/eeeic.2017.7977496

Cited by 10 publications

(8 citation statements)

References 19 publications

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“…Table 5 points out the number of dwellings that have undergone renovations, divided according to year of construction and type of intervention. The most frequent refurbishment intervention is the replacement of windows, carried out in 197 dwellings (47.0% of the total) [59]. Air leakage entailing heat losses and acoustic discomfort are the main reasons of such intervention [60].…”

Section: Description Of Dwellings and Energy Consumption Analysismentioning

confidence: 99%

Energy Retrofitting Effects on the Energy Flexibility of Dwellings

Mancini

Nastasi

2019

Energies

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Electrification of the built environment is foreseen as a main driver for energy transition for more effective, electric renewable capacity firming. Direct and on-time use of electricity is the best way to integrate them, but the current energy demand of residential building stock is often mainly fuel-based. Switching from fuel to electric-driven heating systems could play a key role. Yet, it implies modifications in the building stock due to the change in the temperature of the supplied heat by new heat pumps compared to existing boilers and in power demand to the electricity meter. Conventional energy retrofitting scenarios are usually evaluated in terms of cost-effective energy saving, while the effects on the electrification and flexibility are neglected. In this paper, the improvement of the building envelope and the installations of electric-driven space heating and domestic hot water production systems is analyzed for 419 dwellings. The dwellings database was built by means of a survey among the students attending the Faculty of Architecture at Sapienza University of Rome. A set of key performance indicators were selected for energy and environmental performance. The changes in the energy flexibility led to the viable participation of all the dwellings to a demand response programme.

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Section: Description Of Dwellings and Energy Consumption Analysismentioning

confidence: 99%

Energy Retrofitting Effects on the Energy Flexibility of Dwellings

Mancini

Nastasi

2019

Energies

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“…The ideal objective to reach is represented by the nZEB target [16]. In many cases the suitable retrofitting options have to be evaluated accurately; indeed, many research projects focused on identifying which were the most effective refurbishment strategies to improve the existing buildings performance [17][18][19] considering market and political context influence [20] as well as ecological aspects [21,22].…”

Section: Introductionmentioning

confidence: 99%

Energy Use in Residential Buildings: Impact of Building Automation Control Systems on Energy Performance and Flexibility

2019

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This work shows the results of a research activity aimed at characterizing the energy habits of Italian residential users. In detail, by the energy simulation of a buildings sample, the opportunity to implement a demand/response program (DR) has been investigated. Italian residential utilities are poorly electrified and flexible loads are low. The presence of an automation system is an essential requirement for participating in a DR program and, in addition, it can allow important reductions in energy consumption. In this work the characteristics of three control systems have been defined, based on the services incidence on energy consumptions along with a sensitivity analysis on some energy drivers. Using the procedure established by the European Standard EN 15232, the achievable energy and economic savings have been evaluated. Finally, a financial analysis of the investments has been carried out, considering also the incentives provided by the Italian regulations. The payback time is generally not very long: depending on the control system features it varies from 7 to 10 years; moreover, the automation system installation within dwellings is a relatively simple activity, which is characterized by a limited execution times and by an initial expenditure ranging in 1000 € to 4000 €, related to the three sample systems.

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“…In 2014, the renewable energy production reached the maximum value of 120.7 TWh (43.1% of national production), while in 2017 it was reduced to 113.1 TWh (38.2% of national production) [2]. In order to identify the current situation criticalities, analysing the electrical system not only in terms of energy, but also in terms of capacity [3][4][5][6][7][8][9], is required. Assaying the energy mix in terms of power capacity, it emerges that the Italian electricity system shows RES capacity of 53.3 GW and a variable power demand ranging in 20÷25 GW over the night time, while more than double peak values over the day time can be seasonally achieved.…”

Section: Introductionmentioning

confidence: 99%

Analysis on the potential of an energy aggregator for domestic users in the Italian electricity system

Santoli

Mancini

Basso

2019

Second International Conference on Material Science, Smart Structures and Applications: Icmss-2019

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This study is focused on the definition of an energy aggregator model for domestic users, offering the Demand Response (DR) optimization and additional services. The research project is based on the Italian electricity system analysis pointing out the renewables high contribution, the poor domestic users' electrification and the need to figure out those issues by a demand flexibility system implementation. Moreover, the characterization of Italian domestic users' energy loads allowed to identify the suitable strategies to get higher flexibility degree. Thus, three case studies have been considered to assess the achievable economic savings due to the DR implementation, accounting for the revenue for dispatching services as well as the intraday energy price variations on the Italian market. It emerged that the demand side flexibility implementation offers benefits to the Italian electricity system but entails small economic benefits for the endusers. Additionally, the adoption of such a system is quite complicated due to the lack of suitable and reliable automation devices. For that reason, a potential energy aggregator for domestic users will have to search funds for its own operation providing customers with additional services, such as energy saving and assisted-living, by using of ICT along with automation within each dwelling.

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The use of local materials for low-energy service buildings in touristic island: The case study of Favignana island

Cited by 10 publications

References 19 publications

Energy Retrofitting Effects on the Energy Flexibility of Dwellings

Energy Retrofitting Effects on the Energy Flexibility of Dwellings

Energy Use in Residential Buildings: Impact of Building Automation Control Systems on Energy Performance and Flexibility

Analysis on the potential of an energy aggregator for domestic users in the Italian electricity system

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