Sandia Evaluates Powerful Batteries for Modular Grid Energy Storage

October 29, 2014 By Karen Henry

gridsaver-energy-manageSandia National Laboratories has begun lab-based characterization of TransPower’s GridSaver, the largest grid energy storage system analyzed at Sandia’s Energy Storage Test Pad in Albuquerque, NM.

Sandia will evaluate the 1 MW, lithium-ion grid energy storage system for capacity, power, safety and reliability. The lab also will investigate the system’s frequency regulation, which grid operators need to manage the moment-to-moment differences between electrical supply and demand.

Additional tests will help validate Sandia’s grid energy storage characterization protocols, which have been developed jointly by industry and the national labs as pre-standards to measure and express energy storage system performance.

National, state and local policies that push for a cleaner, more secure electric grid are driving significant increases in variable renewable generation. Storage helps to mitigate that variability.

The US Department of Energy’s (DOE) Office of Electricity Delivery and Energy Reliability has identified four challenges to the widespread deployment of energy storage: the cost of energy storage technologies (including manufacturing and grid integration), validated reliability and safety documentation, an equitable regulatory environment and industry acceptance. Third-party evaluation of large systems can help break down the barriers to grid energy storage proliferation, according to Sandia.

GridSaver was commissioned by the California Energy Commission’s Public Interest Energy Research (PIER) electric program. Sandia’s work is funded by DOE’s Office of Electricity Delivery and Energy Reliability.

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