Note that PV inverters may have a reactive load, thus show a "production" also when they most likely shouldn't, e.g. at night. This cannot be mitigated with a current clamp, just with a pulse counter.
Production you measure at output of the inverter directly.
What is sent to the grid is then "just" the difference to consumption, if all is on the same phase. Electrons are rather lazy.
See https://energyhacks.wordpress.com/2014/07/10/wire-to-measure/ for some more details. There is also a hack of the flm's firmware to add on-flukso display. See https://github.com/gebhardm/flmlocal - old by now, but still working.
ffuentes |
Thanks, I apply this firmware hack some time ago.
Thanks for the info!
Note that PV inverters may have a reactive load, thus show a "production" also when they most likely shouldn't, e.g. at night. This cannot be mitigated with a current clamp, just with a pulse counter.
Production you measure at output of the inverter directly.
What is sent to the grid is then "just" the difference to consumption, if all is on the same phase. Electrons are rather lazy.
See https://energyhacks.wordpress.com/2014/07/10/wire-to-measure/ for some more details. There is also a hack of the flm's firmware to add on-flukso display. See https://github.com/gebhardm/flmlocal - old by now, but still working.
Thanks, I apply this firmware hack some time ago.
Thanks for the info!