Altair Nano Announces Successful Grid Interconnection & Operation Of 2MW Battery System

July 08, 2008 by Jeff Shepard

Altair Nanotechnologies Inc. announced the successful completion of a demonstration and validation program for a 2MW 500kW battery system purchased by AES Corp..

The program was developed and validated by KEMA, Inc. and executed by AES personnel and subcontractors. KEMA’s testing showed the battery system successfully met the program’s milestones, which was conducted to demonstrate the applicability of Altair’s large platform technology to frequency regulation, a key service currently provided by power plants to the electric grid. This demonstration also suggests that the technology could be used for several other utility applications.

"The positive AES results validate the immense opportunities in the utility sector," said Terry Copeland, President and CEO for Altair Nanotechnologies. "Our patented lithium titanate battery technology represents a significant advancement in frequency regulation and can provide utilities and generating companies with a valuable tool and resource in the growing challenge of grid management."

The 2MW battery system was installed and operated at a substation owned by Indianapolis Power & Light (IPL), an AES company. The system contained two 1MW battery storage units each consisting of one Altairnano 250 kilowatt-hour lithium titanate battery stack, ac-dc power conversion system, HVAC units, a control system and transformers to connect to the IPL grid. During the validation exercise the capacity of each unit was tested by repeatedly charging and discharging at 1MW for 15 minutes. In a second test, 2MW of power from each of the units were used to show the capability of paralleling two separate systems. Additional testing included simulated frequency regulation, which involved switching the units from charge to discharge at up to one megawatt of power every four seconds for several hours.

In August 2007 AES Corp. and Altair Nanotechnologies announced a joint development and equipment purchase agreement. Under the terms of the agreement, the companies will develop a suite of energy storage solutions. This first solution is a modular unit designed to deliver in excess of 1MW of power and 250 kilowatt-hours of energy per unit. Multiple units can be linked together in systems to provide both more power and more energy storage.