A self-stabilising grid that fights back. Trigger a generator trip or demand surge and watch the response ladder — inertia → primary → secondary → tertiary reserve — arrest and restore frequency.
Trigger a grid event
Click an event below. The AI controller and reserve layers respond in real time.
Alert:
System frequency
Frequency
50.00
Hz · nominal
RoCoF
0.00
Hz/s rate of change
Power imbalance
0
MW gen − load
Reserve deployed
0
MW of headroom used
Reserve response ladder
Each layer responds at a different speed, buying time for the next. Trigger an event above to see which layers activate.
1
Inertial response · 0–2 sec
Spinning turbine mass + battery synthetic inertia instantly resist the frequency change. Buys precious milliseconds.
2
Primary reserve (FCR) · 2–30 sec
Governor droop on generators + fast battery injection automatically arrest the fall and stabilise frequency (not yet at 50 Hz).
3
Secondary reserve (AGC) · 30 sec–15 min
Automatic Generation Control ramps dispatchable plants to pull frequency back to exactly 50 Hz and relieve primary reserve.
4
Tertiary reserve · 15 min–1 hr
Operators dispatch additional plants via the balancing market to replenish used reserves and prepare for the next event.
5
Load shedding · last resort
If reserves are exhausted and frequency keeps falling, under-frequency relays automatically disconnect blocks of load to save the grid.
60-second frequency trace
Cyan = healthy band (49.9–50.05 Hz). Amber = warning. Red = emergency. The trace shows the dip and recovery after the event.
Normal operation: Frequency steady at 50.00 Hz. Supply matches demand. All four reserve layers armed and ready. RoCoF near zero — the grid is in equilibrium.