News for hackers. Stuff that matters.

A comment on Pre-built solar homes could make renewable energy almost 50% cheaper. Parent comment

Re:Pre-built solar homes could make renewable energy almost ... by pjkundert on Sunday September 29, 2019 @02:45PM (#21108850)
Any high voltage DC distribution system would require every load to have a single run, with intelligent connectors paired with remote switches to shut off the circuit at detection of any detected alteration of the circuit (eg. Ground fault, capacitance change, etc.)

High voltage DC is spectacularly more dangerous than high voltage AC.

[ Parent | on HN ]
Re:Pre-built solar homes could make renewable energy almost ... by woliveirajr on Sunday September 29, 2019 @08:49PM (#21110802)
Could you give more details of this danger?
[ Parent | on HN ]
Re:Pre-built solar homes could make renewable energy almost ... by maxdamantus on Sunday September 29, 2019 @09:00PM (#21110851)
An arc on AC is more likely to be extinguished since the current drops to zero many times every second (so eg, on 50 Hz AC, an arc is not likely to last more than 1/100 of a second). DC switches and circuit breakers are designed with greater concern for arcs.
[ Parent | on HN ]