Abstract
In the perspective of sustainable cities, urbanist and planners have to deal with a constantly increasing penetration of renewable energy systems (RES) in the urban structure: in tertiary sector, retail and supermarket stores as particularly energy-intensive compounds play a core role in this scenario, as they are often characterized by similar kinds of structures mostly, large surfaces and a single floor, and analogous composition of energy loads. Most of the current research focuses on energy efficiency, but these buildings are particularly interesting for a systematic application of PhotoVoltaic (PV) generation technology as the energy uses associated with them are mainly electrical, in connection with air conditioning and food cooling. This article analyses the energy consumption in the supermarket sector for the sale of food. After an analysis of the main energy consumption parameters, standard solutions for the sizing of PV systems are proposed based on different design objectives, highlighting the potential of each proposed solution. Results show that a high percentage of self-consumption can be achieved, and that a battery storage set at a mean daily PV potential production level (4 kWh/kW in the case) perfectly suits to reach a self-sufficiency between 50-70%. Retail and food stores have proven to be a perfect promoter for PV diffusion either in a high self-consumption configuration, or turning them into energy hub for mobility to building or energy sharing policies.
Highlights
The civil and residential sector is responsible for about 40% of the total final energy consumption and for about 30% of greenhouse gas emissions [1]
In the European countries, at least 15% of the final energy is today used in the commercial service sectors; in particular food stores and supermarkets are considered quite “high energy intensive” due to their relevant need for thermal comfort, refrigeration and lighting systems, with a relevant amount of electricity use
This paper provides work on the analysis of the energy performance of food retail stores and supermarkets basing on general analysis and on some real operational data
Summary
The civil and residential sector is responsible for about 40% of the total final energy consumption and for about 30% of greenhouse gas emissions [1]. The structures for the sale of food are among the most interesting candidates for the installation of PhotoVoltaic (PV) modules aimed at selfproduction of energy, because the relevant use of energy in phase with the solar energy availability, make it possible to avoid the problem of placing the surplus of energy produced into the electrical grid. In this perspective, the effective integration with the building of the variable, nonprogrammable RES, which will be the predominant energy source after 2030, appears to be really interesting in the perspective of a strategic diffusion of PV plants. In the literature different classification can be identified, but in general it is evidenced the difference in terms of sales floor area, as reported in Table 1, in which, basing on the classification proposed in [5] and rearranged by the authors of the present paper, four different typologies are identified
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
