Power factor of CFLs

Compact fluorescent lights (CFLs) have been increasingly popular—or is it so by government mandate?—because they are supposed to generate more light than heat for the same amount of energy.  However, there is a downside: their power factor is not so great, about .57 in an experimented conducted by the author of the linked article.  That means there will be additional loss in the power grid, as the system needs to deliver the current demanded by the apparent power.