On an associated topic, does the 787 APU also have air start facility like the 777?
I have had to divert into airports that had very limited GSE, one time we had our APU out and the airport could not provide the 2 air start machines needed to crank a PW4000. I am sure multiple GPU's were available as they are common in demand for normal usage.
It took me 30 minutes to convince the people to do a hot refule with #2 running on the MD-11, thinking back I should have given in and gone to the hotel as we were in the Dominican Republic. There is nothing like an ice cold Presedente Beer to set the mood right.
Screw the APU, worthless as an operational requirement when you can crank engines with electrial power.
On the gate at a hub even, no need to drag a huffer cart out for an inop APU. The theory is sound.