Sir_Osis_of_Liver

Vogtle 3 & 4 are AP1000s. Construction started in 2013 (preliminary work had started before this, but a design change halted it). Unit 3 was originally supposed to complete commissioning in 2017, but only happened last year. Unit 4 should be online this year. The initial $12B budget went to $14B at the start of construction, but will end up somewhere over $30B.

V.C . Summer in South Carolina has a similar project with two AP1000s. The initial budget was $9B, but the project was cancelled while under construction when projections put the total cost over $23B.

There have been 6 EPRs built, Flamanville-3, Olkiluoto-3, Taishan-1 & 2, and Hinkley Point C (2 units).
All of them are/were massively over budget and behind schedule.

Olkiluoto started construction in 2005, was supposed to complete commissioning in 2010, but only came online last year. Costs went from €3B to somewhere over €11B, the contract ‘not-to-exceed’ amount.

Flamanville started construction in 2007, was supposed to complete commissioning in 2012, but is projected to complete commissioning late this year. Costs went from €3.3B to somewhere over €20B.

Hinkley Point C is still under construction. It’s difficult to put an actual start date because a pile of preliminary site prep work happened prior to real construction starting. Concrete was poured in 2016 though and it was supposed to be operational in 2023. They’re now estimating 2028 at the earliest. Costs have gone from £16B to and estimated £35B.

Taishan 1 & 2 started construction in 2009/10 and went online in 2018/19, roughly 5 years late. Unit 1 had to be taken offline for a year due to faulty fuel bundles. Both units have had reliability issues. Costs ended up at the equivalent of $7.5B, almost double the original estimate.

I was curious, so I checked to see the current longest ultra-high voltage dc transmission line:

The Changji-Guquan ultra-high-voltage direct current (UHVDC) transmission line in China is the world’s first transmission line operating at 1,100kV voltage.

Owned and operated by state-owned State Grid Corporation of China, the 1,100kV DC transmission line also covers the world’s longest transmission distance and has the biggest transmission capacity globally.

The transmission line traverses for a total distance of 3,324km (2065 miles) and is capable of transmitting up to 12GW of electricity.

As a general rule of thumb, HVAC lines will be somewhere around 5-6% line loss per 1000kms, and HVDC somewhere around 3%/1000kms

Electricity from HydroQuebec comes from hydro dams in the north (James Bay and Churchill, Labrador) of the province to interties at the US border. They’re using 735kV and 765kV AC for their long runs.

In my own province of Manitoba, there are three sets of high voltage direct current (450kVdc) lines that go between 900kms and 1300kms to population centres and the US border. The first one built in the early 1970s.

There are a number of HVDC lines in the US too, California has some that have been in service for 50+ years.

People keep saying this, but it’s not accurate.

An EPR is an EPR, the same with the AP1000. There are only very minor differences between installs, usually things that will help ease of construction or reliability on future builds. Both are GEN III+ designs, greatly simplified compared to previous generations, with fewer pump, valves and pipe-runs. They also shortened pipe runs where possible. They also have large, factory-built assemblies that are shipped to site, ready to “bolt” in, which should have reduced site construction time.

Where major changes do happen, it’s with the balance of plant infrastructure, which is site dependent. Location of access roads, where the switchyard is installed, where cooling water is accessed , etc will never be the same between sites. Nor will the geotech information. So a lot of mainly civil and structural design and fabrication will always be site specific.

The KLT-40S reactor is a variant of the KLT-40 reactors developed for and installed in the Taymyr icebreakers back in the late 1980s. It should have been cheap, as it’s a known quantity with a long track record.

The Akademik Lomonosov was supposed to cost the equivalent of $232M, but ended up somewhere north of $700M all for a net electrical output of 64MWe. In that respect, it follows a familiar path for nuclear projects.

On a cost/kW basis, it’s about three times the cost of wind installations. ($3625/kW vs $1300/kW)

The last co-gen plant I worked on had an output of 353MWe and cost about $450M, which was about $50M under budget.

The only other book I struggled with was Pirsig’s Zen and the Art of Motorcycle Maintenance. The travel-log sections were entertaining, and the relationship with his son was interesting, but the discussions on the nature of quality were completely lost on me.

I did get through Zen on the second attempt because I thought it was worth it. I saw no value in Atlas Shrugged at all.

Very early on in my career in consulting engineering, I had an architect tee-off on me for changing the ceiling heights of the office space she’d designed.

I’m electrical, all I was concerned with was circuiting her lights, that was it. I had documentation showing that I’d worked off of exactly the same ceiling heights she had sent me. Heights that she’d apparently changed somewhere along the line without informing the client, who was an international conglomerate, and notoriously picky to work for.

That could have blown over, had she not berated me over email while CCing the client, my management and just about anyone else involved with the project. I made sure to “reply all” showing where the change had happened. She was replaced on the project the following week.

After that I stuck to industrial projects, where the buildings were non-descript concrete and steel boxes with no architectural involvement.

I remember not picking up another book for some time after finishing Shogun. I wanted to hang onto it as long as I could. It’s epic.

Dad had an interesting career. Started as an office clerk for a railway with only high school education. Then he got into using an IBM 650 (IIRC) for doing freight rate calculations. How he managed that transition, I have no idea. He didn’t care for being cooped up all day flipping switches, dealing with punch cards and tapes.

He switched to marketing and got on there very well and retired after 37 years as a regional director.

He always has a book on the go, even now at 83. He has an eclectic pile of them that he kept, from Zane Grey to an early history of the Civil War written around 1870.

Back when I was in junior high in the early 1980s, I found a copy of Atlas Shrugged on my father’s bookshelf, and started reading it. I can’t remember how far I got into it, but I do remember thinking it was just awful in just about every way: story, writing, pacing, everything.

I asked Dad about it, “Oh, that. It’s terrible, isn’t it?” A friend had given it to him. Neither one of us finished reading it and after that it ended up at a book reseller.
On the plus side, he’d gone through his books and gave me James Clavell’s Shogun to read, which was an awesome novel.