m55au

  You have: 1 diesel
  You want: Wh/L
   1 diesel = 10103.465 Wh/L

  You have: 40 MW/30% / (10722.2 W*hr/L)
  You want: L/hr
   40 MW/30% / (10722.2 W*hr/L) = 12435.259 L/hr

    a = 1
    def foo():
      x = a
      a = 2
    foo()

    > UnboundLocalError: local variable 'a' referenced before assignment