That's what I read and it probably was the case, but still... they should have waited (when did he actually make this invention?). Then he probably wouldn't have won. It was probably a fine invention, but a Nobel price?, I think not.
But I'm still curious about what he exactly invented...
Gustaf Daléns Invention
He won the Nobel price for Physics for his invention.
"for his invention of automatic regulators for use in conjunction with gas accumulators for illuminating lighthouses and buoys"
How did his invention actually work?
You could hardly call it a mayor...