Earth Notes: On Website Technicals (2026-10)

Updated 2026-10-05 13:12 GMT.
By Damon Hart-Davis.
Tech updates: Export Margin...
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Speeding through the equilux, observing how my anticipatory adjustments to the on- and off- grid energy systems work out...

: Variable Eddi Export Margin

It is (now) possible to vary the Eddi's Export Margin via the app, ie remotely, but MyEnergi will not even informally publish that part of the API for the rest of us.

If I had the facility, rather than the current fixed 300W, I think I would lower the margin to 100W, or as low as reasonably possible (maybe 50W), to play nicely with the Enphase battery:

  1. During a pasteurisation cycle, to maximise the chance of it completing.
  2. When the grid is super-green (or pricing negative) ie has excess renewables.
  3. When the heat battery is very cold and the grid carbon intensity not red.

I might also raise the Export Margin above 300W when the heat battery is nearly full to aim to just fill it by peak time.

~180 words.