Cloud HEMS vs. lokales HEMS - Welche Vor- und Nachteile gibt es?

The second part of our Energy Management Day 2025 focused on the HEMS system architecture and its components. Ingo Mauser and Armin Golla from EnBW Energie Baden-Württemberg AG highlighted the differences between a cloud-based and a local HEMS and demonstrated the advantages and disadvantages of each option in which use cases or installations. They also provided insights into the various business models offered by providers and explained how and where a local HEMS can be installed – for example, directly in the battery storage system, in the inverter, or as a separate gateway on the DIN rail. Another focus was the importance of a powerful API interface. This is crucial for flexibly connecting both cloud and local HEMS systems to various components such as wall boxes, electric vehicles, heat pumps, air conditioning systems, PV inverters, or battery storage systems. Finally, the two discussed the implementation of Section 14a of the German Energy Industry Act (EnWG) with a HEMS and explained how these requirements can be met with both a cloud HEMS and a local HEMS. 00:00 Intro 00:54 Speaker Introduction 01:29 Differences in System Architecture 03:51 Cloud HEMS - Local HEMS 09:55 Local Components 13:50 Implementation Examples 15:45 How Important is the API Interface? 17:06 Summary 18:22 Explanation of EnWG §14a 19:25 EnWG §14a Technical Perspective 20:55 Network Fee Reduction 22:18 Direct Control - EMS Control 25:01 EnWG §14a with HEMS 28:40 Why the Control Box is Necessary More about the EnBW Energy Community: YouTube:    / energiegemeinschaft   LinkedIn:   / enbw-energiegemeinschaft   Website: https://www.enbw-eg.de Instagram:   / energiegemeinschaft   #HEMS #EnergyManagement #CloudHEMS #DynamicTariff #EnWG14a #ControlBox