Northpower hoped to restore power in stages – which could take up to three hours.
"Due to flooding we have had to isolate and area due to safety precautions," the spokesperson said. "Thanks for your patience while we undertake this work."
There are four planned outages scheduled in Northland today.
Mahuta Rd, Notorious West Rd, and Redhill Rd in Te Kopuru will experience power outages from 9am to 3pm while network maintenance takes place.
Network maintenance will also see a power outage affect a small part of Cove Rd in Waipū between 11.30am and 1.30pm.
Safety improvement work in Maungakaramea - along Tangihua Rd, O'Carroll Rd, and Bercich Rd - will see power switched off from 10am to 3pm.