Estimation Methodology Summary
The three inertia estimation models shown in the table below provide static and historic views of system stability only. None offer a controllable, accurate and continuous view of inertia from transmission, distribution and demand – a view needed by grid operators to safely integrate greater amounts of renewable generation and maintain system resilience. An innovative direct and continuous inertia measurement methodology powered by Reactive technology now, for the first time ever, enables TSOs to have a real-time, accurate view of inertia.
|Enough data to understand inertia patterns||Accurate RoCoF
|Summing inertia across all synchronous generators||N/A||N/A
|Calculating RoCoF during large frequency excursions||
|Estimation based on power events throughout the day||
|Real-time inertia measurement||