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Raymond Trejo, left, and Walter Ellard manufacture cabinet-sized batteries

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Energy Storage System Looks to Leave Grid in Backup Role

ENERGY: Co. Designs Software, Hardware for Battery-Based System

In a reflection of the opportunity facing the home energy storage industry, a San Diego battery manufacturer formed in August says it has signed five contracts totaling more than $4 million and is already planning an expansion to meet domestic and international demand.

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