jamesholden,
@jamesholden@mas.to avatar

Yesterday I let my bot manage the inverter charging and discharging for the entire day. It did quite well! Our entire electricity demand was met for less than zero cost with solar and automated load shifting on the Octopus Agile tariff.

bazcurtis,
@bazcurtis@mastodon.social avatar

@jamesholden If yesterday was good, tomorrow is going to be out of this world. I have been lucky enough to be in profit all week. It is only April!

jamesholden,
@jamesholden@mas.to avatar

@bazcurtis Also, what app is that in the screenshot? I’m a dev so I just wrote my own obviously 🫠

bazcurtis,
@bazcurtis@mastodon.social avatar

@jamesholden Octopus Watch. It is a very good app. I will be discharging the batteries early, then charging later.

jamesholden,
@jamesholden@mas.to avatar

@bazcurtis I wrote this a couple of days ago. The battery levels are projections based on pricing and historical data. It just finished boosting the battery because it was cheap rates. If I’d screenshotted it half an hour ago it would have had a 🪫icon.

bazcurtis,
@bazcurtis@mastodon.social avatar

@jamesholden That is very clever. I write my Home Assistant projects on my site. https://www.bazmac.me

I am no developer, no judgement 😀. I am not quite clear what it is showing. Is it how much the battery would charge for that price? It takes 6 slots to fully charge my batteries.

jamesholden,
@jamesholden@mas.to avatar

@bazcurtis Also I do need to look into Home Assistant. Most of my smart home stuff is in that janky Tuya app but I can’t do everything I want in it.

bazcurtis,
@bazcurtis@mastodon.social avatar

@jamesholden I am sure you would love it. I hope you have a lot of spare time😀

jamesholden,
@jamesholden@mas.to avatar

@bazcurtis Battery level shown here is the forecasted charge level, simplified to an icon. If it shows the lightning bolt, it intends to charge at that time. It forecasts taking into account the price, expected demand, and a solar forecast based on weather and time of year/day. Then decides on a threshold price that it will charge at. Currently working on a 12 hour sliding window.

bazcurtis,
@bazcurtis@mastodon.social avatar

@jamesholden Does your inverter not support Agile natively?

jamesholden,
@jamesholden@mas.to avatar

@bazcurtis Haven’t got a clue. It’s a Solax one. I’m quite happy with my own bit so far, as it has an idea of our own specific load profile, which I might make dynamic based on historical data.

bazcurtis,
@bazcurtis@mastodon.social avatar

@jamesholden That makes sense. This is my Home Assistant solar dashboard.

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