Power was lost to 1100 Hamilton homes near Waikato University today.
The outage affected homes between Nottingham Dr and Knighton Rd.
Power was lost at 12noon and restored at 12.28pm.
Wel Networks control systems manager Alan Harrop said the power fault was caused when a person clearing vegetation took out a powerline.
Mr Harrop said the incident highlighted the importance of using professionals to clear vegetation around live powerlines.