|Yes, the bounty of the sky! 30W!|
It was all over by 2 pm. Twelve solar panels securely fixed to our roof ("if the wind takes 'em, they'll be taking yer roof off too!") and an electricity generator's worth of new dials, meters and weird Wi-Fi stuff in our pantry.
It's late afternoon before I've managed to get into the portal, dug out the requisite Wi-Fi OWL monitor MAC number, created an account and finally turned up the display above.
At the moment in question we're consuming on the left 0.885 kW and producing from the sky - well .. 30W. So that's half a lightbulb then. I trust from an overcast January afternoon we can only do better.