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The original was posted on /r/homeassistant by /u/Reikan-Ysora on 2026-07-19 19:09:08+00:00.
Good evening everyone :)
It has been a little while!
I am happy to announce that I have just released, ahead of schedule, version 2026.8.0 of Helios, by far the most complete version of both my card and my forecast (both are available right now).
I will be honest with you: these last three weeks have been one of the biggest marathons of my life as a developer. I tried, and I hope I managed, to answer every one of your messages, whether they were support requests or words of encouragement, and they helped me step back and rethink what my card should really offer.
I believe this version finally strikes the right balance between performance and readability. And my Forecast has become considerably more accurate too.
But first, two questions and answers:
What are Helios and Helios Forecast?
Quite simply: a card and an integration for Home Assistant. The card started out dedicated to solar (hence the name), but it has grown, and it is now useful to anyone who wants to understand, analyse and improve the way they consume energy, whether you produce your own or not.
My goal from the start was to make energy "tangible" and "understandable", so that you can actually act on it, either to save money or to reduce your footprint.
Helios Forecast, on the other hand, is still entirely dedicated to solar, and works differently from other forecasts with a "local data" approach.
Why the August version on 19 July?
Well, as I said above, I have spent several hundred hours on this version, polishing every feature, every pixels, and above all making sense of 100% of the Home Assistant Energy dashboard, so that Helios works out of the box, stays simple to use, privacy, and can still be made entirely your own down to the smallest detail.
To celebrate this release, I decided to go all out:
- A trailer, which you can see above this post, and which also marks the start of the content I will be publishing on YouTube around Helios (and not only Helios).
- A brand new website that explains EVERYTHING: every configuration detail of Helios, how it works, how transparent it is with your data, and how my forecast actually operates. There is also a section answering the questions I have been asked most often, to help you go further with the card. You will find the full roadmap there too, along with the support I have received and the feedback from the community.
Anyway, I really do hope you will like all of this. Without getting too personal, I have been through a rather difficult period recently, and I want to thank every one of you, because working on this project gave me a purpose again, and slowly helped me rebuild my confidence.
Thank you to those who installed it, to those who starred it on GitHub, to those who sent me an email or a direct message, to those who bought me a coffee (and God knows I drank plenty of them :p), and even to those who gave me negative feedback.
It is thanks to all of you that this version ships today, and that I am, after all, a little proud of myself :)
In short, here is what this new version brings:
- An even lighter engine.
- A fully configurable basemap: every detail, roads, zones, woodland, water areas, everything can be themed so you can make the map your own.
- Full support for EVERY entity configured in your Energy dashboard: multiple grids, multiple solar arrays, multiple batteries. All of your entities can be spread across four groups, with no limit on how many, so you can keep an eye on your car charging, your water heater, your oven, and really your whole home.
- The ability to show or hide every area, every reading, every chip, so you can turn it into a wall tablet, or simply keep it readable on your phone.
- A completely rethought curve mode. No more "modes": everything is now built in. A click on a chip shows its consumption in the timeline, a double tap wraps that same curve around your home, and by dragging the cursor along the timeline you can pinpoint instantly, and precisely, what consumed energy and when, so you can act on it and improve the way you use it.
Anyway, those of you who have read my previous posts know they are always very long, and I will not insult you by apologizing, because I am simply incapable of being brief.
I will let you judge for yourselves. And I invite you to explore my new website, still at https://helios-ha.org/.
I am also working on a longer video for my channel, to explain in detail what this new version has to offer.
Thank you all, and see you very soon on GitHub / YouTube or ... whatever :)
Cheers ;)
ReikanYsora / Jérôme