EMS for Deye Inverter

[bioalf]

Hello,

I found your ha-deyecloud-bridge project and noticed that you already work directly with the Deye Cloud OpenAPI and the European Deye developer endpoint.

We are developing a paid EMS project for a:

Deye SUN-20K-SG05LP3-EU-SM2
~48 kWh low-voltage battery system
photovoltaic installation

We need to go beyond monitoring and use DeyeCloud Dynamic Control for battery charge/discharge and export control.

The EMS will later optimize energy arbitrage, PV usage and peak shaving.

We would first like to commission a fixed-price Proof of Concept:

authentication;
station/device discovery;
telemetry;
Dynamic Control capability discovery;
write/control validation;
command acknowledgement/result verification;
Python diagnostic tool.

Would you be interested in this freelance work?

If yes, please provide your fixed price and estimated delivery time for the PoC. We can send a complete technical specification.

[stmr]

@bioalf you posted a paid EMS PoC here and it is still unanswered, so I am offering as a remote EU contractor (GitHub stmr) rather than waiting on PetePeter.

Fixed price for the Proof of Concept you listed: USD 900, PayPal samik4184@gmail.com, 5 business days after you send the technical specification plus Deye Cloud access for the SUN-20K-SG05LP3-EU-SM2 / ~48 kWh LV battery.

Scope, matching your list:

1. Authentication against the European Deye developer endpoint.
2. Station/device discovery for that inverter and battery.
3. Telemetry read (power, SOC, charge/discharge, export).
4. Dynamic Control capability discovery — which write endpoints/modes this model actually exposes.
5. Write/control validation of one buyer-authorized command (charge, discharge, or export limit — you pick). I will not dispatch a live battery command without that written authorization.
6. Command acknowledgement / result verification against subsequent telemetry.
7. A Python diagnostic tool that runs those steps and prints a pass/fail report.

Not in this PoC: energy-arbitrage optimizer, peak-shaving policy, Home Assistant integration, or a production EMS.

Please send the complete technical specification you offered. I will not start until the spec, access method, the authorized write test, and PayPal timing are in. Crypto is optional, not required.

If a smaller first step is easier: USD 250 for auth + discovery + telemetry only (no writes), 3 business days after spec and access.

If you already hired PetePeter, ignore this.