Chema Hernández Gil on Nostr: About a decade ago, San Francisco still had a small direct current (DC) power grid ...
About a decade ago, San Francisco still had a small direct current (DC) power grid for elevators which PG&E was dismantling. Seems like a real missed opportunity given the recent growth of other types of electric conveyances like cars, bikes, and scooters now.
https://spectrum.ieee.org/san-franciscos-secret-dc-gridPublished at
2024-04-21 23:11:48Event JSON
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