This read-write integer enables or disables the Dc1 plant's energy management feature, which appears to dynamically turn rectifiers on or off to run the plant more efficiently under partial load. An admin toggles this based on whether they prioritize energy efficiency or prefer all rectifiers running for maximum redundancy margin. For example, an admin operating a plant with ample spare rectifier capacity might enable this feature to reduce running rectifiers during light-load periods and save energy.