SANTA CLARA, Calif. & SAN DIEGO–(BUSINESS WIRE)–#energystorage–Green Charge, the largest provider of commercial energy storage in the U.S. today announced that San Diego’s Poway Unified School District has installed more than 6.3 MWh of energy storage. The Green Charge energy storage system is now deployed at 12 campuses including elementary, middle and high schools and is expected to save the district more than $1.6 million over the 10 year term of the contract with Green Charge. The Green Charge energy st