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blog! “eInk Display for Octopus's Agile Energy Tariff”
I'm a little bit obsessed with building eInk displays. They're pretty cheap second hand. They're low energy, passive displays, with good-enough performance for occasional updates. Here's a new one which shows me what the current cost of my electricity is: Background After installing solar panels, a …
Read more: https://shkspr.mobi/blog/2023/12/eink-display-for-octopuss-agile-energy-tariff/
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#battery #eink #HowTo #php #solar
Apparently I didn't properly code my eink screen for *negative* pricing 
On the plus side, right now electricity is costing me zero pounds, zero shillings, and zero pence.
Might roast some potatoes just for the hell of it 
(We both get £50 if you join Octopus https://share.octopus.energy/metal-dove-988)
Holy shit!
Most of tomorrow is going to be NEGATIVE pricing for electricity.
Literally being paid to soak up extra electrons. Might cook Xmas dinner a day early 
Tumble dryer on.
Croissants cooking in the oven.
Kettle boiling.
Battery charging.
At -2p/kWh it won't quite pay for an Xmas present - but certainly fun to see what sort of odd behaviours it drives.
Our 4.8kWh battery took advantage of the negative electricity pricing yesterday.
It charged when power cost ≤ £0.00 and discharged the rest of the time.
Basically filled and emptied twice.
@Edent we made 77p profit on the leccy yesterday. And we used more electric heating so our gas bill was cheaper too.