## 2 Materials and Methods
### Analysis Methodology
#### 2.4.2 Methodology Application Feasibility  
With the aim of assessing the potential energy savings, with reference to a real context, it was decided to select two agritourisms situated in the Sicilian province of Palermo, considered as representative of the whole regional agritourism context regarding the size, the provided services, and more importantly for the purpose of the proposed methodology object of the present work, in terms of energy consumption. Apart from these physical and energy features, both agritourisms were selected thanks to their wide offer of services, which are representative of these kind of farms, and due to the fact that they operate in the two climatic zones where agritourisms are mainly sited in \begin{table}
\begin{tabular}{c c c c} \hline \hline
**ARERA Technical** & **EU Ecolabel** & **EU Ecolabel** & **Energy Consumption** \\
**Data Sheet N.** & **Criterion N.** & **Achievable Points** & **Category 1** \\ \hline
5 & 33 & 4 & HVAC \\
7 & 39, 40, 41 & 3.5 & RES \\
8T & 6 & 2 & DHW \\
15T & 6, 7 & 1.5 & HVAC \\
19T & 7 & 3.5 & HVAC \\
27T & 6 & 1.5 & DHW \\
6 & - & - & HVAC \\
20T & - & - & \\ \hline \hline \end{tabular} 1 HVAC—Heating, Ventilation, and Air Conditioning; DHW—Domestic Hot Water; RES—Renewable Energy Source.  
\end{table} 
Table 1: Correspondence between the Italian Regulatory Authority for Energy Networks and Environment (ARERA) datasheets and the EU Ecolabel energy criteria. Sicily. Specifically, the two agitourism are _Villa Dafne_, sited in Alia and belonging to climatic zone D, and _Bergi_, located in Castelbuono and classified as climatic zone C. Both agitourisms fall into solar belt 3. Table 2 describes the main general characteristics of the two structures. In Table 3 is reported the information relative to the energy characteristics of interest for the conducted study, which were obtained by on field surveys and interviews with the owners of the two businesses, thanks to which it was possible to reconstruct the energy consumption relative to an entire year of operation of the structures. In particular, the data regarding the energy consumption were distributed between four main categories and accordingly broken down into percentages, and corresponding toe/year, also with reference to the corresponding energy sources. As for the energy sources' average costs, the following values were used:  
- 0.19 \(\xi\)/kWh for electricity;  
- 1.17 \(\xi\)/Sm\({}^{3}\) for natural gas;  
- 0.90 \(\xi\)/lt. for diesel oil. Subsequently, it was hence possible to obtain the achievable energy savings (AES), in terms of percentage of electricity consumption covered by the datasheets proposed interventions on an annual basis, by comparing the values obtained from Equations (A1) to (A8), and the total energy consumption (Table 3), by means of the following equation:  
\[AES_{i}=\frac{R_{i}}{T\sigma.\ cons._{j}}\ [\%] \tag{1}\]  
where: \begin{table}
\begin{tabular}{c c c} \hline \hline \multicolumn{1}{c}{**Characteristic**} & _Villa Dafne_ & _Bergi_ \\ \hline Covered surface (m\({}^{2}\)) & 1000 & 1400 \\ Glazed surface (m\({}^{2}\)) & 236 & 305 \\ Opaque surface (m\({}^{2}\)) & 2768.5 & 2791.75 \\ Surface/Volume ratio (-) & 0.62 & 0.5 \\ N. of seats in the dining area & 150 & 180 \\ N. of rooms & 35 & 34 \\ \hline \hline \end{tabular}
\end{table} 
Table 2: General characteristics of the two selected agitourisms.