Author Topic: Worlds largest Solar farm HVDC transmission ??  (Read 18 times)

0 Members and 0 Guests are viewing this topic.


Offline Caleb

  • Hero Member
  • *****
  • Posts: 1009
Re: Worlds largest Solar farm HVDC transmission ??
« Reply #1 on: October 23, 2020, 06:38:36 am »
What could go wrong?

Offline CG

  • Administrator
  • Hero Member
  • *****
  • Posts: 2513
Re: Worlds largest Solar farm HVDC transmission ??
« Reply #2 on: October 23, 2020, 09:45:03 am »
I just wondered why they chose to transmit it as DC rather than traditional AC. Can't use transformers on that. But then again the farm would generate the power as DC and then have to be put through an inverter or motor/generator to get AC.
It's a toss-up, I guess.
Pretty big project. I would think they would want to use it themselves, but it may be the "end user" is  just renting the land for "their" project.

Offline Caleb

  • Hero Member
  • *****
  • Posts: 1009
Re: Worlds largest Solar farm HVDC transmission ??
« Reply #3 on: October 25, 2020, 10:48:39 am »
I think inductive losses get quite high when a transmission line is so long like that. 

Offline CG

  • Administrator
  • Hero Member
  • *****
  • Posts: 2513
Re: Worlds largest Solar farm HVDC transmission ??
« Reply #4 on: October 25, 2020, 12:28:27 pm »
1 mile of 0000 copper is 0.2588 ohms, I thought it would be higher.
But copper may be too expensive. 100 miles = 25.88 ohms .724.64 ohms for the 2800 miles.  Aluminum is 0.3985 ohms. 100 miles would be 39.85 ohms.
« Last Edit: October 25, 2020, 04:52:50 pm by CG »