Every story and comment from the Hacker News API, in a layout borrowed from 2001.
A comment on Switzerland’a new hydro plant charges 400K vehicles simultaneously.
* 80% efficient when “charging”
* 900MW/20 GWh capacity
* <5 minutes to switch from full pumping mode to full power generation.
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* 80% efficient when “charging”
* 900MW/20 GWh capacity
* <5 minutes to switch from full pumping mode to full power generation.