I’m lucky enough to live one of these areas of eastern England, where #OctopusEnergy and #UKPowerNetworks are running a trial where electricity is free for specific periods of peak renewable generating capacity. We’re in the middle of the first such 2-hour window right now, so we’ve turned everything we can on. We’ve been managing to draw about 18 kW from the grid for the first hour, on top of roughly 2 kW we’re generating from our own solar array.
If you live in one of these areas and want to sign up, or just want to read more about it, there’s more info here: https://octopus.energy/power-ups/ (oh, and here’s a referral link to get even more money off: https://share.octopus.energy/dusk-boar-319 )
Octopus Power-ups | Free green electricity in East England

Get free electricity when there's spare green electrons in your area

Octopus Energy
Final results are in: we managed to pull 34.1 kWh from the grid. Yum yum. To be clear, that’s energy that we would otherwise either have consumed at a less beneficial time, or which we have effectively time-shifted so we can export it at other times instead.
@benavison Got half an hour free here, before the battery was fully charged and the water heated and the sun came sort-of out-ish and we were back to exporting.
@benavison ditto apart from the PV (we will be getting PV ASAP)