Hildebrand Glow, Home Assistant and MQTT - Getting visibility into my energy data

Posted on Wednesday October 13, 2021 • Read time 20 minutes

Since Home Assistant announced energy monitoring was being added, I've been super interested in what sort of data I could get out of my energy system. We have nothing fancy here. Just fairly standard dual-fuel (electricity and gas) system provided by the grid with a smart meter. No solar panels or batteries or returning power to the grid. My provider (E.ON Next) don't make that data easily accessible (or at least, they didn't when I looked).

So, I searched around and found Hildebrand and their Glow meter. Which was out of stock. Boo.

I signed up for stock alerts for the product and started wondering if I could write a bot to log in to my account on the E.ON website, then scrape the data and push it back into Home Assistant in the meantime.

But then I got an email...

Understanding MQTT: My Notes

Posted on Saturday August 28, 2021 • Read time 10 minutes

I've recently dived into MQTT. I got it working without really understanding some core concepts (yay easy-to-use UIs) but felt myself wanting to know more about what it was. I did some reading up on the various parts and decided to document them here for my own reference later on. Maybe it'll be useful to others too, who knows!

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