  The nuGeN experiment is aimed to investigate neutrino properties using
antineutrinos from the reactor of the Kalinin Nuclear Power Plant. The
experimental setup is located at about 11 meters from the center of the 3.1
GWth reactor core. Scattering of the antineutrinos from the reactor is detected
with low energy threshold high purity germanium detector. Passive and active
shieldings are used to suppress all kinds of backgrounds coming from
surrounding materials and cosmic radiation. The description of the experimental
setup together with the first results is presented. The data taken in regimes
with reactor ON (94.50 days) and reactor OFF (47.09 days) have been compared.
No significant difference between spectra of two data sets is observed, i.e. no
positive signals for coherent elastic neutrino-nucleus scattering are detected.
Under Standard Model assumptions about coherent neutrino scattering an upper
limit on a quenching parameter k < 0.26 (90 \% C.L.) in germanium has been set.
