In a hybrid PV/battery storage project in Denville/Hackettstown, NJ, state‐of‐the‐art lithium ion batteries work with a commercial PV system, simultaneously generating PV power, providing frequency regulation for PJM, and providing emergency power capability.
No government involvement, no grants…the revenue from the frequency regulation services not only paid for the additional cost of the batteries, but paid for the inverter, too, actually reducing the cost of the system.