Which nuclear plants are really "under construction"?

The term "under construction" is often used by the nuclear industry to inflate the numbers to make the new nuclear sector appear to be booming. After all Watts Bar-2 was "under constrution" for 43 years before it finally opened last year. The World Nuclear Industry Status Report has now launched "a fully interactive visualization on nuclear power reactor construction. How many of the 55 reactors currently under construction in the world are behind schedule? Which 13 countries are building nuclear power plants? Who are the technology providers? How long did it take for a specific reactor to be connected to the grid? For how long were the 90 units actually under construction before they were abandoned? 

If you wish to find out these and more details about any of the 754 nuclear reactors that have been under construction sometime between 1951 and 2017, explore the Global Nuclear Power Database now available on the website of the Bulletin of the Atomic Scientists.