I thought I'd just add another snippet of information.
I couldn't really understand the 'energy bucket' concept; as in, why not just use zero and some
S.O.T. upper-value, like 3600?
I'd tried a variety of values and apart from changing the ON/OFF timings, they all appeared to work equally well. In the end I stuck with Jeremy's original values for
upper
and
lower
(2700J & 900J).
As we transitioned into Winter and the amount of Solar power decreased, I noticed something: The ADE7555 was sometimes detecting "Export", when the "Anti-creep" function of the company meter wasn't (yet) active - it lagged some way behind.
The manual for the company meter, says that at some preset minimum current, the Impulse LED comes on and stays on (rather than giving a 20mS flash to indicate energy usage). I'd naively assumed that you got 'free' electricity, when consumption dropped this low
I think the company meter might do the same borrowing trick to even things up. The ADE7555 was adamant current was flowing to the grid, yet the company meter insisted that it wasn't.
The Import/export detection doesn't seem to be something I could influence through mis-calibration (only the
amount of import or export).
Either way, not using up all the exported energy in the bucket, seems to give the pair of them the chance to co-exist, when operating at the margins.