To ensure a continuous power supply during maintenance of a power plant, utilizing power grids is essential as they can reroute electricity from other sources. Tie lines and sub-transmission lines play important roles in this process, allowing for sharing and distributing power effectively. Overall, power grids provide a reliable solution for maintaining service during repairs. ;
The best way to ensure continuous power supply during maintenance of a power plant is through the use of power grids, which connect different power sources allowing for electricity to be rerouted. Tie lines and sub-transmission lines also support this process by facilitating the sharing and distribution of electric power. Therefore, the correct choice is A. Power grids.
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