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Network Manager MMS

Market Management System (MMS)

A market management system for modern electricity markets

MMS includes a set of advanced applications and a modern, service-oriented IT platform that supports various market-related functions performed by Market/System operators including Independent System Operators, Transmission System Operators, Market Operators, and Regional Transmission Organizations.

MMS optimizes market clearing and congestion management for nodal and zonal markets – whether required a day or week ahead, in real-time, or at periods throughout the day. Hitachi Energy's market management solutions have enabled operations for leading transmission and market operators around the globe such as NYISO (New York), ERCOT (Texas), SEMO (Ireland), ECGC (China) and IMOWA (Australia).

Key features

MMS is built on a modern and open enterprise architecture, with built-in flexibility to support various market designs and environments. It includes:

  • Advanced applications:
    • Security constrained unit commitment – providing field proven MIP and LR methodologies
    • Security constrained economic dispatch
    • Resource and network modelling
    • Nodal, zonal and single price mechanisms
    • Smart grid features like demand response and renewables
  • Market trading infrastructure:
    • Wholesale trading – energy, ancillary services, transmission rights, capacity
    • Participant registration
    • Market rule administration
    • Real-time publishing
    • Dispatch messaging
  • ENTSO-E systems and protocols
  • Enterprise integration/system services
  • Market surveillance
  • Meter data management
  • Commercial reconciliation (settlements, prudential risk, accounting, billing, contract management)
Market Management System (MMS) architecture


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