In South Africa the citizens are facing a crises of such a service and its our electricity system. Predominately coal power plants, that are at end of life, and rolling blackouts is a common occurrence. It is necessary action, to avoid a blackout, given it would take weeks to get the system going again. Furthermore, high inequality and unemployment, makes it paramount to grow the economy, so these rolling blackouts have a huge impact socio-ecomically. It is a service that can't simply be restarted.

Transitioning risky services which can't be restarted, is clearly complicated, especially for complex systems. I wonder if there is body of knowledge with principles that could apply to not only to these massive nationwide scale, but to that of web-services and alike. Does anybody have resources in this respect?