[orwin]

>> Add to that the fact that there is no fukushima style meltdown in a fusion power plant. If something goes wrong, it just stops.

Well, so does any gen3 fission reactor. That makes the gen 3.5 EPR "now with core-catcher" an over-engineered, useless and costly project.

>> Finally, contrary to fission, fusion power plants will be able to adjust their power output as fast as gaz power plants. It takes months to turn on or off a fission power plant.

No, it takes up to 6 hours on gen3, depending on design. Some French reactors can go from 100% to 0 in less than an hour, and from >0% to 100% in two (although this is very, very inefficient). A 5% change, in some cases, can be reached in 15s. The issue is that everytime a reactor is not running at 100%, you loose a lot since all the cost stay the same (fuel cost is less than marginal).

The main advantage of fusion is near-infinite available fuel at current energy consumption. That said, with Gen4 and all those new shiny research on surgenerating reactors, the same could be said of fission. I guess the main issue is our appreciation of risk.