Owen Duffy wrote:
Perhaps "power is present" is an avoidance of the somewhat tautological
form "power flows to the load".

Want to muddy the waters even more? Ramo & Whinnery say:
"Another very important case is that of a perfect conductor,
which by definition must have a zero tangential component
of electric field at its surface. Then ^P^ [Poynting vector]
can have no component normal to the conductor and there can
be no power flow through the perfect conductor."
--
73, Cecil http://www.w5dxp.com