# _Tegridy_

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**_Tegridy_**
t1_ixcv1by wrote

Reply to comment by **FourierXFM** in **How exactly is the "direction" of the flow of power measured in a alternating current system?** by **Landhund**

The real power is oscillating as well, it's just that the mean value of the real power is V*I*cos(theta).

There is a double frequency component of oscillating real power on top of it.

_Tegridy_t1_ixcz2at wroteReply to comment by

TrappedInASkinnerBoxinHow exactly is the "direction" of the flow of power measured in a alternating current system?byLandhundYes, that's what I was trying to get at. Power as such is oscillatory as well but when we talk of V I cos(theta), that's just the average real power over one cycle.