All of Haines and Skagway went black for 13 minutes Monday as winter electricity demands maxed out power systems.

Darren Belisle, Alaska Power and Telephone manager of power operations for Upper Lynn Canal, said the Goat Lake hydroelectric system in Skagway does not produce enough power to keep up with the extra heating and Christmas light demands this time of year.

He said AP&T has been running a diesel engine in Skagway to make…