T&D World Magazine

PJM Accepts First Grid-Scale, Battery Energy Storage System

Altair Nanotechnologies Inc.'s 1 MW, 250 kWh battery storage system met requirements to participate in the PJM Regional Transmission Organization (RTO) control area. This milestone marks the first commercial acceptance of an advanced Lithium-Titanate battery to provide grid regulation services in one of the largest electricity markets in the United States.

Altairnano has a joint development agreement with AES Energy Storage LLC, a subsidiary of The AES Corp., to develop grid-scale energy storage applications.

AES Energy Storage LLC completed the standard acceptance testing for regulation service within the PJM service territory earlier this week. The tests were completed by a one MW energy storage unit incorporating Altairnano's advanced Lithium-Titanate cells. This unit was part of an earlier AES technology validation effort in Indiana. The unit is now available for commercial operation as a qualified market participant for regulation service by AES Energy Storage.

"Open power markets, like the PJM Interconnection, value grid stability services and encourage the deployment of technologies to efficiently serve these needs," said Chris Shelton, President of AES Energy Storage LLC. "By completing the requirements to compete in the PJM Regional Transmission Organization, we are enabling energy storage technologies that can help to make the electric grid smarter and more responsive today."

AES is working with industry leaders to selectively deploy energy storage solutions to improve the capacity and efficiency of its existing thermal, renewable, and distribution facilities. AES is one of the world's largest global power companies, with operations in 29 countries, including a platform of more than 120 power facilities and 12 million distribution customers.

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