How do you avoid electrocuting a linesman? Don't products like a powerwall have ... | Hacker News

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		nikau on March 12, 2025 \| parent \| context \| favorite \| on: Show HN: We built a Plug-in Home Battery for the 9... How do you avoid electrocuting a linesman? Don't products like a powerwall have a disconnect relay to ensure there is no backfeed? I can't see how this product can backfeed to the household circuit safety/legally unless there is some technology I'm not aware of?

chadconway on March 13, 2025 [–]

Can back feed when the grid is up. Can't back feed when the grid is out. It has an onboard relay to disconnect from the grid when there is an outage.

nikau on March 17, 2025 | [–]

how can a device connected to a power point disconnect from the grid?

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