Market sounding: State Estimator for MCCS NextGen

The current situation in the energy world is characterized by numerous political, social, and technical challenges and changes. The energy system is transforming and requires a higher and better integration of renewables. This also implies the increase of measurable and controllable units and at the same time the need to deal with rapidly growing data. There is a need for new complex functionalities, and likewise an increasing need for system monitoring, system state analysis, decision support and automation to deal with the volume of events and actions in the electrical system.

With MCCS NextGen, 50Hertz plans to completely replace all application software systems and integration technologies in its system operation, including SCADA, EMS, LFC, CMS, scheduling, etc., as well as adding or enhancing relevant capabilities such as dynamic system analysis, dynamic voltage management, topology optimization, online analytics and more. Associated with MCCS NextGen is a strict focus on modularization of applications, loose data- and event-driven coupling of modules, and flexible integration of modules.

MCCS NextGen will be shared by 50Hertz as a vision, architecture, and reference solution with peers (e.g., other international TSOs) in a MCCS NextGen community, becoming a blueprint for 50Hertz and other TSOs and community partners to quickly respond to the increasing change needs in electric (and other) infrastructure management applications.

For further information about MCCS please check: https://www.50hertz.com/en/Grid/MCCSNG

One module of MCCS will be the online “State Estimation” as part of the Grid Analysis Suite. This market sounding aims to identify potential vendors for a State Estimation solution that fits within the modular approach of MCCS.

As can be seen in the illustration below, we are not necessarily aiming to procure all necessary parts of a State Estimation, but focus on the core calculation capabilities. Since MCCS has its own unified user interface, the State Estimation does not necessarily need to be delivered with an inbuild UI. Also, the Topology Processing is needed for various MCCS modules and therefore does not necessarily have to be part of the State Estimation Module, as it will be provided by MCCS.

Given the size, complexity and importance of the project, 50Hertz is interested in exploring current market solutions for State Estimation solutions. 50Hertz would like to use this market sounding to assess the feasibility of its specific requirements as well as the integrability of State Estimation solutions. Therefore, we would like to ask you to answer the questions in the document "Market Sounding State Estimation.xlsx" by 09. February 2024 for our market evaluation.

The document covers the following topics:

• Industry Knowledge and Experience
• General Requirements
• Topology Processing & Plausibility Check
• Observability Analysis
• State Estimation Solution
• Bad Data Handling
• User Interface
• Additional functionalities

IT- & Architecture topics:

• Modularity, Programming Interfaces and IT-Services
• IT-Support

We would appreciate broad participation and ask that you submit your response files in English. Please send them as a pdf document to pmo_mccs_nextgen@50hertz.com.