“ SAN DIEGO – An 11,000 pound metal flywheel caused an explosion this summer that injured four people at the warehouse of a Poway technology firm, state officials said this week.
The blast occurred June 10 at Quantum Energy Storage at 13350 Gregg St. The California Division of Occupational Safety and Health (Cal/OSHA) announced Wednesday it had fined Quantum $58,025 for 16 health and safety violations after determining the explosion was caused by an “out-of-control” 11,000 pound, seven-foot diameter metal flywheel.
One worker suffered a broken ankle and three others had abrasions caused by flying debris. None of the injuries were life-threatening.”
