Princeton, N.J., December 2, 2011 — Grid-tied inverters from Princeton Power Systems are now being used as a power resource for the PJM Regulation Market.
The inverters, in conjunction with lead carbon and lithium-iron phosphate batteries, will participate in two locations as 100 kW resources to enhance reliability and increase the efficiency of the grid.
The energy storage system delivered is capable of 100 kW of power and 26 kW hours, which are the minimum power and energy levels required to participate in PJM's frequency regulation market. The system includes the inverters, lithium-iron phosphate batteries, and the communications required to interface with PJM.
The inverters are a unique aspect of the system as they are capable of working with several types of batteries and capable of multiple communication options, including the DNP3 protocol used by PJM. While the recent FERC regulation allows for a minimum of 100 kW, the inverters can be configured for anywhere as much as 1 MW or more.