This leaves the Navajo Nation, which does observe the change, in a peculiar situation. The reservation is fully located within Arizona, and the smaller Hopi reservation is fully located within the Navajo Nation. The Hopi ignores DST like the rest of Arizona, making the Navajo Nation a Daylight...
However, this practice also reduces auxiliary power requirements, meaning that the plant efficiency does not necessarily decrease significantly. A further consideration is that gas firing usually increases the furnace exit gas temperature (FEGT) in the boiler and changes the heat transfer profile [20,...