Reserves
Generation reserves are the electricity supplies that are not currently being used but can be quickly available in the case of an unexpected loss of generation. Think of a spare tire – a backup when you need it. The types of reserves are:
Operating Reserve – The amount of power that can be received within 30 minutes. This power can be from:
- Generators that are synchronized (connected) to the power grid or offline
- Certain loads, designated as demand side response, which can be removed from the grid
Primary Reserve – The amount of power that can be received within 10 minutes. This power can be from:
- Generators that are synchronized to the power grid or offline
- Certain loads, designated as demand side response, which can be removed from the grid
Synchronized Reserve – The amount of power (connected to the grid) that can be received within 10 minutes. This power can be from:
- Generators that are synchronized to the power grid
- Certain loads, designated as demand side response, which can be removed from the grid
Quick Start Reserve – The amount of power that can be received within 10 minutes from generators that are offline
Supplemental Reserve – The amount of power that can be received within 10 to 30 minutes. This power can be from:
- Generators that are synchronized to the power grid or offline
- Certain loads, designated as demand side response, which can be removed from the grid