National Grid ESO, the electricity system operator tasked with keeping the lights on in the UK, is looking to enable multiple application stacking for providers of a new frequency response service that also participate in the national Balancing Mechanism.

Two grid-scale battery energy storage projects, one just completed in Texas and one just announced in California, give an indication of the growing market opportunities in the US’ regional grid operators’ service areas.

A large-scale energy storage project to be built in Texas will take advantage of the system’s flexibility to deliver multiple services, as opportunities grow in the state’s Electricity Reliability Council of Texas (ERCOT) market.