A
system and method for collecting, at a central
station, utility consumption data from a plurality of sites, by a meter unit and a booster unit for each site. The meter unit includes a measuring device for measuring the utility consumption at the respective site; a storage device for storing the measured utility consumption during successive relatively-short time intervals; and a short-range
transceiver. This booster unit includes a short-range
transceiver for communication with the short-range
transceiver of the meter unit at the respective site via a short-range
transmission channel; and a long-range
transmitter for transmitting utility consumption data to the central
station via a long-range
transmission channel. The
system further includes a
control system periodically activating the booster unit from a relatively
long sleep state, to a relatively short
active state during which the booster unit receives from its respective meter unit, via the short-range
transmission channel, the utility consumption data stored therein during the preceding
sleep state of the booster unit; and transmits the received utility consumption data to the central
station via the long-range transmission channel.