The six-wheeled vehicle was ordered to conserve power before being awakened.

This means the radios can be off much of the time, and thus conserve power.

It may operate at less than the maximum clock speed to conserve power.

The first and second floors once were large rectangular panel windows, but have shrunk to conserve power and energy.

The craft had only two days of battery power, so systems were powered off, including the radio, to conserve power.