Balance solar, battery, and diesel against a full day's demand — and keep the grid frequency at 50 Hz. Miss the balance for too long and the lights go out.
● Grid down
🌙00:00
Grid Frequency50.0 Hz
Demand0 MW
Supply0 MW
Battery Charge65%
Grid Stability100%
Solar
0 MW
Battery
65%
Diesel
OFF
Battery dispatch
◀ ChargeIdleDischarge ▶
Genset ControlSTOPPED
Desktop: ↑/↓ battery · S start · X stop · Space start/pause
How to play
Run the grid for one day
Keep the white marker in the green zone (≈50 Hz) by matching supply to demand.
Solar is free but only shines midday — bank the extra by charging the battery.
Spend that stored energy in the evening peak. Start the diesel genset only when you must — it hurts your score.
If grid stability hits zero, the city goes dark. Survive to midnight to win.