## 3 Results  
MRI idle mode: power consumption and savings. Table 2 presents the idle mode parameters and associated costs, while Figure 3 illustrates the power consumption profiles for each of the modes identified in our analysis: \"Restart\", \"Shutdown\", and \"Forgotten\". \begin{table}
\begin{tabular}{c c c c} \hline  & **Forgotten** & **Shutdown** & **Restart** \\ \hline
**Active power parameters (kW)** & & & \\ Minimum–maximum & [6.78–13.65] & [7.13–9.94] & [6.69–9.75] \\ Mean & 7.62 & 7.49 & 6.81 \\ Median & 6.87 & 7.21 & 6.76 \\ Standard deviation & 2.06 & 0.83 & 0.38 \\ Variance & 4.23 & 0.68 & 0.14 \\ Interquartile range & 0.03 & 0.03 & 0.04 \\ Mode & 6.87 & 7.20 & 6.78 \\ Sum & 109.50 & 107.64 & 97.83 \\
**Total winter price (night standby)** & & & \\
**(EUR)** & & & \\
2021 & 6.2 & 5.4 & 5.3 \\
2022 & 22.4 & 18.1 & 14.1 \\
2023 & 46.5 & 43.2 & 37.5 \\ \hline \end{tabular}
\end{table} 
Table 2: Parameters and price of idle mode (6:30 p.m. to 8:50 a.m.). Figure 2: Example of hourly management based on daily price fluctuations in winter. The graph illustrates MRI energy consumption and price variations over a 24 h period during winter. The energy usage is divided into four categories: Idle (blue), Ready to scan (yellow), Scan (red), and Update (gray). The secondary \(y\)-axis (right) indicates daily price fluctuations in energy cost, represented by black dots. Peak hours are shown in the red-shaded area, and full hours are shown in the green-shaded area. Figure 3: Electricity consumption profiles of different idle modes: no action upon operator console, logout “forgotten” (**A**), powering off the computer “shutdown” (**B**), and exiting the application software “restart” (**C**). In the \"Shutdown\" mode, the system demonstrated excessive power usage for 92 min, averaging 9.9 kW. This level eventually dropped to a standby consumption of 7.2 kW, with no software updates being initiated. The \"Restart\" mode caused a brief spike in power consumption to 9.4 kW lasting for 5 min, after which it stabilized at an average of 6.8 kW. During this mode, a scheduled update at 3:05 a.m. resulted in an average energy expenditure of 9.6 kW over a period of 10 min. The \"Forgotten\" mode was characterized by the system maintaining excessive power consumption for 1.5 h, peaking at 13.2 kW in \"Ready-to-Scan\" mode before transitioning to a standby state with an average power draw of 6.9 kW. A notable event during this mode involved an update at 3:05 a.m., which consumed an average of 9.7 kWh over 10 min. The \"Shutdown\" mode consumed a total of 107.6 kW. The \"Restart\" mode had a slightly lower consumption at 97.8 kW. The \"Forgotten\" mode was the most energy-intensive, with a total consumption of 109.5 kW. Over the period, the annual costs associated with each idle mode varied due to fluctuations in electricity prices. The \"Shutdown\" mode incurred costs ranging from EUR 5.4 to EUR 43.2 per night according to annual prices. The \"Restart\" mode costs varied from EUR 5.3 to EUR 37.5, and in the \"Forgotten\" mode, the costs were higher, ranging from EUR 6.2 to EUR 46.5. MRI scan mode: power consumption and savings. Figure 4 displays the energy consumption of MRI protocols, comparing standard and optimized protocols. The energy consumption for standard protocols varied between 3.4 kW and 15 kWh per protocol. With the integration of AI-driven SmartSpeed acceleration and multiband diffusion, energy consumption for optimized protocols ranged from 2.3 kW to 10.6 kW per protocol. Specific energy consumption was lowest for musculoskeletal studies (knees and lumbar spine) and highest for neurodegenerative, epilepsy, and brain tumor protocols. Supplementary Data provide detailed contributions from each sequence. The cost calculations for each year are presented by protocol, with the details provided in Table 3. In the operational window encompassing peak and full hours, the cost of optimized protocols in 2021 was between EUR 0.15 and EUR 0.84 per scan, compared to EUR 0.22 and EUR 1.19 per scan for standard protocols.