A commission ordered by Gov. Cuomo to investigate power companies after Sandy wants to know if the utilities responded fast enough to outages that affected public transportation.

The Moreland Commission issued letters yesterday to the MTA and Port Authority seeking answers about Con Ed and LIPA. The commission issued subpoenas to both authorities earlier this week.

“You have firsthand information about the preparation and response of the . . . utilities to the recent storms that is critical to the analysis being performed by the commission,” the letters said.