News for hackers. Stuff that matters.

A comment on Modeled impact of large-scale wind and solar farms in the Sahara. Parent comment

Re:Modeled impact of large-scale wind and solar farms in the... by xyzzyz on Thursday September 06, 2018 @05:33PM (#17929750)
Standard 800 kV DC line from Algeria to Berlin (2400 km) would incur less than 10% transmission loss.
[ Parent | on HN ]
Re:Modeled impact of large-scale wind and solar farms in the... by DoctorOetker on Friday September 07, 2018 @12:12PM (#17935425)
What's the maximum current carrying capability for this standard 800 kV DC line?
[ Parent | on HN ]
Re:Modeled impact of large-scale wind and solar farms in the... by tim333 on Friday September 07, 2018 @02:50PM (#17936702)
Not sure for a standard line but the record is "1100 kV voltage, a 3,000 km (1,900 mi) length and 12 GW of power". So presumably 11,000 amps or so for that one. I guess you can have as much current as you want by making the cable thicker.

Being built in China here approx https://www.google.co.uk/maps/dir/Guquan,+Putuo,+Zhoushan,+C...

It's quite an impressive looking thing (vid) https://www.youtube.com/watch?v=VZ2KfrP_R3s

[ Parent | on HN ]
Re:Modeled impact of large-scale wind and solar farms in the... by DoctorOetker on Friday September 07, 2018 @03:45PM (#17937106)
so transporting 1 TW would be a hundred of those in parallel
[ Parent | on HN ]
Re:Modeled impact of large-scale wind and solar farms in the... by xyzzyz on Friday September 07, 2018 @04:50PM (#17937523)
Yeah, but the average EU power consumption today is 0.35 TW, so with only a hundred of those in parallel (more likely spread around the Europe) you could literally satisfy 100% of EU power demand, and still have plenty of spare capacity.
[ Parent | on HN ]
Re:Modeled impact of large-scale wind and solar farms in the... by tim333 on Friday September 07, 2018 @04:16PM (#17937309)
I guess something like that. Probably beefier pylons and more cable on them.
[ Parent | on HN ]
Re:Modeled impact of large-scale wind and solar farms in the... by DoctorOetker on Saturday September 08, 2018 @09:47AM (#17940787)
could submarine power cables in the Medeterranian sea be thinner since the water keeps the cable cool?
[ Parent | on HN ]
Re:Modeled impact of large-scale wind and solar farms in the... by tim333 on Saturday September 08, 2018 @03:50PM (#17942425)
Dunno - bit beyond me that one.
[ Parent | on HN ]