More than 500 households in Glenorchy and parts of Queenstown remain without power after wild weather brought down lines overnight.
A tree that had fallen across powerlines at Bobs Cove on the Queenstown-Glenorchy Rd has cut power to the southern lake settlement and blocked the road in both directions.
Emergency services worked late into the night to remove the tree while crews began repairing the lines.
The road reopened just before 2am.
This morning a Delta spokesman said power remained out to all of Glenorchy and the Queenstown suburbs of Fernhill and Sunshine Bay.