[Feature] Multi-phase / multi-CT (Shelly 3EM) support with per-Hyper grouping

[KikaLule]

Describe the feature

Hello,

I’m using Zendure Hyper / SolarFlow devices with Home Assistant in a real three-phase installation and a Shelly Pro 3EM (one CT per phase).

Currently, the integration only allows one single “P1 sensor for smart coupling”, which means:

• all Hyper devices follow the same global power measurement
• no distinction between phases
• no way to assign Hyper devices to a specific phase / CT

This works for mono-phase setups, but it is not optimal nor physically correct for three-phase systems, especially when Hyper devices are distributed per phase.

Requested feature :
Add support for multiple fuse / power groups, for example:

• Allow defining multiple “power measurement groups”
• Each group is linked to one power sensor (CT) (e.g. Shelly Pro 3EM Phase A / B / C)
• Allow assigning one or more Hyper devices to each group

Example use case:

• Group Phase 1 → Shelly CT A → Hyper P1-A, Hyper P1-B
• Group Phase 2 → Shelly CT B → Hyper P2-A
• Group Phase 3 → Shelly CT C → Hyper P3-A

Each group would regulate only based on its own phase power, avoiding:

• cross-phase compensation
• unwanted injection on individual phases

Benefits :

• Proper support for three-phase installations
• More accurate power regulation
• Better compliance with electrical reality
• No impact on existing mono-phase users (feature can be optional)

What device is this for?

Hyper2000

Other Information

No response

[harrymayr]

I'm not sure if I really see a benefit. I see more disadvantages. In cases one phase need more power than a single Hyper can deliver, but the other phases have only little demand, than you will not be able to regulate the total power to 0. And that's the main goal of this integration.
And in the end, the total power which you need to buy from the public grid is that what matters.

[KikaLule]

I fully understand the global energy-based approach and agree it makes sense for many setups.

My use case is specifically about three-phase electrical constraints rather than energy billing. In my installation, injection per phase matters (grid rules, inverter limits, electrical balance), even if the total power is close to zero.

I’m not asking to replace the current global logic, but to optionally support an advanced mode where power regulation is phase-aware, for users with per-phase CT sensors and per-phase battery systems.

This would keep the current simple mode untouched, while allowing advanced users to handle real three-phase electrical constraints more accurately.

[MacdiverOne]

I‘m currently driving two distinguished grid connections (house/car) with different („P1“) meters and different contracts (fixed price/flexible Price). Each grid accesspoint got it‘s own SF800Pro with batteries. OK, the fixed one got 2 SF800Pro…

Challenge: ZA-HA allows only one P1 and no second instance on HA. So I‘m currently on ZA-HA with one fusegroup for the fixed tariff and NodeRed for the second P1 / SF800Pro (thanks to surfer1964 and his work!).

To put long story short: different P1 (P1-1, P1-2, P1-x) which could be assigned to fusegroups would do the trick for me (maybe for others too (think about heatpumps etc.).