New and innovative applications in the field of energy supply and electromobility always require new solutions for the use of direct current systems. This also applies for building installations in which, for example, a DC power infrastructure could be installed in addition to the AC mains as a means of avoiding losses in individual parts of the network. These considerations were the starting point for initiating a standardization roadmap on "DC in low voltage systems" that is being developed by an expert group in the DKE with the participation of all interested parties.
Protection targets and concepts will feature prominently in the roadmap in addition to a general section on standardization. Basic safety and operation elements are being examined in detail. The economic and legal framework, including a consideration of potential markets, will be included as well as an examination of DC topologies and architectures. The different voltage levels, producers and energy storage facilities are also discussed.
A number of use cases and descriptions of project and research activities complete the content of the Standardization Roadmap. The resulting recommendations for action and the need for standardization will be particularly ground-breaking in terms of the standardization activities. Conceived as a reference section, the annex contains a list of all relevant standards, including brief descriptions of them.
While work was being carried out on the Standardization Roadmap, the IEC and the Bureau of Indian Standards (BIS) held a successful international workshop in New Delhi on the subject of "LVDC - Redefining Electricity" at the end of October 2015 which attracted more than 200 participants. The aim was to discuss and advance standardization in this field.
Publication of a first edition of the Standardization Roadmap is planned for the first quarter 2016 and - like all DKE standardization roadmaps - will be available free of charge to the public.