News on China's scientific and technological development.

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Overbom

Brigadier
Registered Member
Xinjiang is too far and it doesn't make economic sense.

Things could change though if China ropes in Middle East, Central Asia countries to connect in a unified power grid. I remember that there had been discussions about this in the past, but I don't know how much they have progressed
 
ZeEa5KPul

ZeEa5KPul

Colonel
Registered Member
AndrewS said:
It's technically possible, but you're looking at a much higher cost to build a much longer HVDC transmission line.
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Do you know for a fact that the added cost HVDC from Xinjiang would be sufficient to to render solar projects there unviable? Note that you don't have to connect Xinjiang to the east directly, but to the closest major connection. At worst, there would have to be a phased approach where cheaper lines are built closer, then new lines built in Xinjiang to connect to the older ones.
 
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gelgoog

Lieutenant General
Registered Member
HVDC is really expensive. Costs about as much as making a power plant (e.g. nuclear) with similar capacity.
If they get carbon nanotube ballistic conductors to work perhaps costs can be reduced.
But with current technology. Too expensive.
 
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wxw456

New Member
Registered Member
AndrewS said:
It's technically possible, but you're looking at a much higher cost to build a much longer HVDC transmission line.

There should be space for sufficient wind and solar capacity in Inner Mongolia and Outer Mongolia, which are much closer to Eastern/Central China
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ZeEa5KPul said:
Do you know for a fact that the added cost HVDC from Xinjiang would be sufficient to to render solar projects there unviable? Note that you don't have to connect Xinjiang to the east directly, but to the closest major connection. At worst, there would have to be a phased approach where cheaper lines are built closer, then new lines built in Xinjiang to connect to the older ones.
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You all realize that your information on operating HVDC lines in China is severely out of date right? China already built and operates HVDC lines from the Northwest to the East...
  • The Hami-Zhengzhou 8GW HVDC line (2210 km) has been operating since 2014.
  • The Jiuquan-Hunan 8GW HVDC line (2383 km) has been operating since 2017.
  • The Zhundong–Wannan 12GW HVDC line (3324 km) has been operating since 2019.
The next major expansion is offshore wind farms. The low distance from the offshore wind farms to the major coastal cities means very expensive HVDC lines will not be needed.
Another trend that most people here missed is that China is also massively expanding pumped storage hydroelectricity. China currently has 30.3 GW of operational pumped-hydro facilities. The plan is to reach 62 GW by 2025 and 120 GW by 2030. Roughly doubling power capacity every 5 years.
  • The world's largest pumped hydro station was commissioned in Hebei in January:
 
FairAndUnbiased

FairAndUnbiased

Brigadier
Registered Member
Hyper said:
Look at the graph carefully. EU's share is recovering and increasing . Most likely due to scientists from eastern Europe and Russia. No institute in the world comes close to IAS , IHES and Bonn (all thanks to Peter Scholze).
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are we looking at the same graph? Russia is neutral. No gain, no loss, in both 2015 and 2020. The EU source gain is not Russia.
 
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Weaasel

Senior Member
Registered Member
Back in 2021 from July to September there was much coverage of the Thorium Molten Salt experimental reactor underdevelopment in the Gobi Desert and it was stated that China was on the verge of completing the construction of the facility and then engaging on the test phase. But since then coverage had greatly dwindled... Does anyone have any updates dating recently and at any time this year with regards to the Thorium MSR?
 
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