Point 1:
There are 5 damaged fuel rods in the Taishan Unit 1 core, in accordance with EDF statement yesterday and general commentary/predictions from nuclear industry tweeps. Well below design basis for continued operations of the reactor, so no shutdown expected.
Point 2:
An increase in radioactivity in the primary loop is indeed very different from a release outside of the plant. As long as that is the case, this is an operations issue for plant personnel, not a public safety concern.
Point 3:
NNSA denies CNN's allegation (via of as-yet unseen Framatome memo) that the "off-site dose limits" have been doubled. They state the doubling for the radioactivity level of inert gas used in plant chemistry procedures in the primary loop.
(Point 3 continued)
These are indeed two very different things. Impossible if failure of communication is from Framatome, the person who leaked the memo to CNN, the CNN reporting itself, or something else.
If true, it's a very serious thing to have gotten wrong.
Final Point:
This press release is good, but should have come yesterday. EDF statements yesterday left us lamenting the industry's generally woeful lack of PR savvy. NNSA making a good and strong statement after allowing 24+ hours of speculation is only a slight improvement IMO.
1) Taishan is a Chinese plant built with French technology with a large French equity stake and Framatome is a French MNC offering technical services everywhere around the world (including the USA).
2)
Taishan is owned by CGN, which is on the US Entity List. Thus it would normally be forbidden to transfer US-derived technical information or data to CGN. A waiver may be obtained, however, for reasons of "operational safety", which is what Framatome is applying for.
3) They're likely applying because either A. the information they are preparing to transfer originated in the US, or B. they don't want to impact their business in the US by doing work with CGN without full transparency. Probably both actually.
Nice article in Caixin Global today about Chinese power rationing. It's paywalled, so I will summarize the key points for the curious with notes in parentheses. (1/15 thread).
2
Power rationing was implemented in several provinces in China from mid-December. Affected provinces included Hunan (esp. Changsha) and Zhejiang (esp. Yiwu). (Jiangxi is not mentioned but should be true there too according to other reports, with conditions similar to Hunan).
3
Article first cites overall high consumption as part of post-covid industrial stimulus plan. November 2020 power consumption was up 9.4% YoY and 2.5% YoY overall.
(Does not mention their own reporting from earlier this year about artificial electricity consumption in ZJ).
China is building the world's most advanced UHV grid right now.
UHV lines are good for carrying power over long distances. The high voltage level reduces line loss. But they are very expensive to build.
China's UHVDC Network now:
2/14
In the rest of the world, UHV lines have generally been used sparingly. Submarine power cables (e.g. connecting UK to mainland Europe) and some huge hydropower projects in Quebec are some notable exceptions.
China is building UHV lines on a scale never seen before.
3/14
So why is China different? Geography plays a huge role. China's load centers are in the coastal East and South, while the best wind, solar, and hydro resources are in the North, Northwest, and Southwest. Power (esp. RE) is being generated far from where it's needed most.
China Power Sector For Dummies- Part 1: Grids and Dispatch - Getting Smarter
1/10
First, Chinese doesn't have a national grid, at least not in the way that small countries do. There are 6 regional grids (N, NE, NW, E, C, S). State Grid runs 5 of them and Southern Grid runs 1.
2/10
These grids are somewhat interconnected with Ultra High Voltage (UHV) lines. UHV DC lines are used for long-distance connections and UHV AC lines for shorter distances. So power can be moved around the country, but at a cost, and lines have load limits.
3/10
The overall balance of China's power sector is indeed of oversupply, but this is not true on a regional basis. The East and South grids specifically have very tight local supply and are net importers of power from other grids. Meanwhile the NW and NE grids have a huge glut.