← Is it safe, and will it last?

Question 3 of 10

Is there a fire risk?

There is no electrolyte and no thermal runaway, so there is no battery-style fire. It is designed to meet UL 9540, with certification still to come.

Michael Pratt, CEO · Pulsar demo, 23 Sep

The full answer

The energy is stored mechanically, so there is no electrolyte and no thermal-runaway chemistry to catch fire. Pulsar is being designed to meet the UL 9540 requirements for energy storage systems, which should make fire-safety review and permitting simpler than for large lithium-ion banks. Formal certification and site permitting still have to be completed.

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