I don't quite understand how that discredits what im saying
Anyway the book is written by a physicist, i think he realises how much energy that is.
I don't think you realise the power levels that have been demonstrated in the movies, which is where they derive their figures from. A stardestroyer VAPOURISED an asteroid. That requires in excess of 200 gigatons. Unless you can somehow prove otherwise, which people have tried to do for years, and failed those figures stand.
I never said they shouldn't. The game doesn't specify where the Shield generator is beyond being in that tower. I was just correcting a common misconception on the part of Thon 77.