Heat pump as a key technology for the heat transition!

Without a heat transition, there is no energy transition. With a heat pump, efficient and environmentally friendly heating becomes possible with long-term economic benefits – and independence from fossil fuels increases!

Digital use case networking

Providers of heat pumps use digital connections defined in use cases. Based on the EEBUS standard, KEO provides the appropriate use case individually for each device.

Additional use cases that enable the use of dynamic tariffs or self-consumption optimization are also available for the HVAC application field from KEO.

Implementation of use cases in EEBUS:

Power Limitation (§14a EnWG)

  • Limitation of Power Consumption (LPC). A short-term power limitation is transmitted by the EMS or the grid connection point. Part of LPC also includes a failsafe functionality of the heat pump in case of a connection loss.
  • Monitoring of Power Consumption (MPC). The heat pump transmits the consumption, from current power to phase-specific values.

Dynamic Pricing

  • Incentive Table based Power Consumption Management (ITPCM). Incentives are received by the EMS. These are based on flexible electricity tariffs and local PV power generation. The heat pump can use this to proactively optimize its energy consumption.

Flexibility Provision

  • Incentive Table based Power Consumption Management (ITPCM). A household can make the flexibilities of its consumption units available to the grid operators.

Self Consumption Optimisation

  • Optimization of Self Consumption by Heat Pump Compressor Flexibility (OHPCF). In combination with a PV system, self-consumption of electricity is optimized.

Additional use cases for Monitoring & Control (EMS)

  • Monitoring and Control of Smart Grid Ready Conditions (MCSGRC). This use case is specifically designed to support the retrofitting of heat pumps. The system can read from or write to the “Smart Grid Ready” (SGReady) status of the heat pump.
  • HVAC Temperature Package. This collection of use cases enables the EMS to monitor and configure the temperatures of an HVAC system (room heating/cooling temperature, domestic hot water temperature, outdoor temperature monitoring).
  • HVAC System Function Package. This collection of use cases enables the EMS to monitor and configure the operating modes of an HVAC system (Auto, Eco, On, Off).

The technical product solution used here: the KEO UseCase API.

With the integration of the heat pump into the HEMS, control and automation as well as networking with the PV inverter and storage, wallboxes, and other IoT applications become possible. Advanced control by an EMS (Energy Management System) also takes into account factors such as dynamic electricity tariffs, surplus solar power, online weather forecasts, and much more.

According to §14a of the Energy Industry Act (EnWG), grid-oriented control of consumption devices must be possible. This applies to all controllable consumption devices (steuVE), including heat pumps.