Hello, I found out that in Czechia grid billing is based on arithmetic sum of consumption of each of 3-phases. Later I found that there is likely only single Energy Meter that supports this measuring - ET340. The problem is it's sample rate is very poor - 2000ms. Is there a way how to possibly reconfigure other more advanced meters to work in my country?
Is there direct impact of Energy Meter to overall ESS performance? Are the data from EM used by Multipluses for regulating of it's performance or is it just information used by VRM/Cerbo? Anyhow I am frustrated that I have only two options:
a) get wrong data because of use of phase sum instead of arithmetic sum.
b) get wrong data because of very slow sampling rate of ET340.