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A123 Energy Solutions, a developer and manufacturer of advanced energy storage systems, has announced the commissioning of its Grid Storage Solution for Red Electrica de Espana (REE), the Spanish transmission system operator.

According to A123, the system is rated at 1 MW for three hours, includes power conversion and controls, and was installed and commissioned at the Carmona substation near Seville in late December 2013.

The energy storage project, named Almacena, was led by REE and co-financed by the European Regional Development Fund, the company notes. A123 provided a turnkey solution to REE, performing all site preparation, installation, final commissioning and maintenance of the system.

A123 says the battery will be used to store energy for later use, helping to improve the effectiveness of renewable generation and providing reactive power, frequency regulation and voltage regulation in mixed mode operation.

At the core of the installation, A123 adds, is the Long Duration Grid Battery System.

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