Energy Storage

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  Basically, energy storage systems are configured in one of two ways: a power configuration or an energy configuration, depending on their intended application. In a power configuration, the batteries are used to inject a large amount of power into the grid in a relatively short period of time, which requires a high inverter-to-battery ratio. A typical application would be to simulate a turbine ramp up for frequency regulation, spinning reserve, or black start capacity. For an extended amount of time, the batteries are used to inject a steady amount of power into the grid. This application has a low inverter-to-battery ratio and would typically be used for addressing issues in which power demand changes are occurring over a period as long as several hours, or shifting curtailed PV production to later in the day. This is accomplished by adjusting the ratio of inverters to batteries in the system.