Multi meter multi charge multi inverters

Im in UK were we get tarrif back for energy charge
Digital meters currently we have 3 meters,
(1) the incomming, charge to us
(2) the high charge meter from 1 sunnyboy inverter from 12 panels
(3) The lower charge meter with 11 npower inverters
The electrical company wants to instal phase 2 smart meter the can read from their offices!

Anyone know if it will work? Or any knowldge of problems?