Your inverter is smart. Is it interoperable?

EEBUS is the open standard for local energy management. With the KEO UseCase API, manufacturers of PV systems and home storage solutions can integrate their devices into any EEBUS environment – ​​quickly, in compliance with standards, and future-proof.

Interoperability via EEBUS

One standard. All devices. One ecosystem.

Those who build PV inverters or home storage systems must integrate them into an energy management system – with wallboxes, heat pumps, HEMS, and the grid. EEBUS is the common language for this.

Direct control by network operators

Your PV system or storage unit can be controlled directly from a control box or a smart meter gateway (SMGW). This entitles your users to a reduced grid fee.

Connect energy managers

Your inverter or storage system will be recognized and controlled by any EEBUS-certified energy manager – without proprietary integration work on either side.

Integrate heatpumps

Do you handle energy management yourself? Integrate EEBUS heat pumps reliably, even in existing installations.

Integrate wallboxes

Charging with excess PV power is also possible with connected EEBUS wallboxes.

Minimum standard

With EEBUS you meet the minimum standard for the digital interface to the grid connection point.

Third-party portfolio

Expand your portfolio with EEBUS devices. Remain interoperable regardless of the manufacturer.

Future-proof

EEBUS is based on flexible use cases instead of fixed data points. This ensures long-term compatibility.

EEBUS is the answer to regulatory requirements as well

The German Energy Industry Act, the Renewable Energy Sources Act, technical connection conditions, and the EU Cyber ​​Resilience Act are just some of the standards and laws that define the capabilities of connected PV devices. EEBUS is the communication standard that puts these requirements into practice – and KEO provides the compliant implementation.

§14a EnWG §9 EEG §12 EnWG EU Cyber Resilience Act VDE-AR-E 2829-6 VDE-AR-N 4105 (April 2026) EU CoC Energy Smart Appliances VDE-AR-N 4100 (March 2026)

Interested in how the KEO UseCase API implements these regulations?

EEBUS Stages

Stages of EEBUS energy management

  • Stage ZERO | Grid-friendly operation
    Your device complies with short-term limitations of the network operator, your customers are rewarded with a reduced network fee.
  • Stage ONE | Ad-hoc Optimierung
    The energy management device monitors current electricity production and stores excess energy in the electric car’s battery or in the form of heat.
  • Stage TWO | Forecast-Based Energy Management
    The energy management device is aware of flexible electricity tariffs and the PV system’s own production. Energy flows are proactively orchestrated by intelligently integrating the battery.
Our products for inverter manufacturers

From the first EEBUS connection to series production readiness

KEO covers the entire development cycle – with a tailor-made EEBUS API for your device and an interactive test tool that enables your test environment to be equipped with a flexible EEBUS counterpart.

UseCase API

EEBUS communication for your device

Ready-made, standards-compliant EEBUS implementation as a software interface. No deep dive into the EEBUS specification is required.

  • Out-of-the-box: all use cases for PV surplus charging, self-consumption optimization, flexible tariffs
  • Compatible with all EEBUS-certified devices and HEMS platforms
  • Meets the new technical connection requirements according to VDE-AR-N 4105 (April 2026)
  • EEBUS implemented according to VDE-AR-E 2829
  • Automatic controllability check §12 EnWG
  • BSI-certified security and CRA-ready
  • Fast integration: Weeks instead of months time-to-market

→ Go to the UseCase API

Ktest StiX

Your EEBUS counterpart for development

Interactive test tool that displays individual EEBUS devices or even an entire house – for a quick start and reliable integration.

  • Switchable roles: control box, EMS, heat pump, wallbox, …
  • Send and receive use case data at the touch of a button
  • Transparent display of all incoming EEBUS messages
  • LPC/LPP scenarios can be tested interactively – compliance with Section 14a of the German Energy Industry Act (EnWG) and Section 9 of the German Renewable Energy Sources Act (EEG) can be verified.
  • Can be used during development from the first day of EEBUS integration.
  • Accelerates preparation for EEBUS certification tests

→ Go to Ktest StiX

Your PV device, ready for the EEBUS ecosystem

Talk to us – we’ll show you how quickly the integration works and what you can gain in terms of market share and compliance.