What is the preferable punctuation when using equivalently in the middle of a sentence in order to give an equivalent interpretation of something as illustrated below?
It minimizes the power consumption or equivalently the energy consumption of the system.
It minimizes the power consumption or, equivalently, the energy consumption of the system.
It minimizes the power consumption, or equivalently the energy consumption, of the system.
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Similarly, how is it with alternatively?
It can minimize the power consumption or alternatively the execution time of the system.
It can minimize the power consumption or, alternatively, the execution time of the system.
It can minimize the power consumption, or alternatively the execution time, of the system.
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