7. Conclusion

Whatever the commercial rules and organization of the electricity sector, generation and grid form a technically inseparable whole.

This system can be faced with a widespread incident at any time. To limit the number of such incidents and their consequences, the network operator has a number of levers at his disposal, which correspond to the cost/risk trade-off he is prepared to make.

• Preventive measures make it possible to keep the residual risk of collapse as low as possible, through good design and maintenance of structures, protection systems and control systems. This applies in particular to production facilities, automatic control systems and protection systems, which must act with caution and safety: neither too early nor too late, nor untimely.

• Curative...