  We show a new mechanism to extract energy from non-equilibrium fluctuations
typical of periodically driven non-Hermitian systems. The transduction of
energy between the driving force and the system is revealed by an
\emph{anomalous} behavior of the susceptibility, leading to a diminution of the
dissipated power and consequently to an improvement of the transport
properties. The general framework is illustrated by the analysis of some
relevant cases.
