  We have investigated the effects of AGN outflows on the amplitude of the
matter power spectrum in a simple model of spherically symmetric outflows
around realistically clustered AGN population. We find that two competing
effects influence the matter power spectrum in two opposite directions. First,
AGN outflows move baryons from high to low density regions, decreasing the
amplitude of the matter power spectrum by up to 20%. Second, high clustering of
the AGN transfers the power from small to larger scales. The exact balance
between these two effects depends on the details of outflows on small scales,
and quantitative estimates will require much more sophisticated modeling than
presented here.
