How long can a power plant continue to generate electricity without maintenance by people?

The situation is as follows: there is a city with different districts, each provided with electric power from a different power plant:

• Thermal power plant
• nuclear power plant
• Hydroelectric power plant
• Wind power plant
• Solar power plant

All the people have disappeared at the same time, in the middle of the day, so now nobody maintains the power plants anymore.

1. Will power plants continue to produce and deliver electricity to the houses?
2. How long it will be possible to use the electrical energy to the abandoned houses of this city?
3. How soon will each type of power station break down?
4. Does disaster happen (like the explosion of a nuclear reactor)?
5. Which stations will last longer?

posted almost 8 years ago

Exerion‭

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