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A comment on Show HN: We built a Plug-in Home Battery for the 99.7% of us without Powerwalls.

Re:Show HN: We built a Plug-in Home Battery for the 99.7% of... by cantrecallmypwd on Tuesday March 11, 2025 @08:33PM (#43338716)
As far as I know, backfeeding is illegal and not allowed by the NEC because of how dangerous it is to linepeople without a disconnect switch. A local transformer when energized by backfeed creates high voltage on lines that should be deenergized.
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Re:Show HN: We built a Plug-in Home Battery for the 99.7% of... by borisk on Tuesday March 11, 2025 @08:38PM (#43338754)
My guess is the battery will come with some sort of remotely controlled switch that disconnects the house from the grid, before the battery starts supplying power.
[ Parent | on HN ]
Re:Show HN: We built a Plug-in Home Battery for the 99.7% of... by chadconway on Wednesday March 12, 2025 @12:52AM (#43340065)
Pila can only back feed on-grid. Pila has a built in Microgrid Interconnect Device (MID). When an outage is detected, like Powerwall Pila opened the MID and continues to power downstream loads that are plugged into Pila.
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