Will to Power and Know-How

In #19 of Beyond Good and Evil, Nietzsche distinguishes Will as the issuer of a command, from Power as an awareness that "accompanies all success".  But, 'success' entails more than an accidental correlation of outcome to command.  In other words, the awareness of Power is one of Ability.  Thus, in this passage, at least, Will and Power are distinguished as Command and Know-How.