Entegrus crews will be working on upgrading the utility’s systems in Chatham, which will mean a dark few hours for some residents.

Roughly 170 customers in north-east Chatham will be affected from 10am to 6pm on Tuesday.

The utility says all affected customers have been notified by an automated voice message.

Among the streets included in tomorrow’s planned outage are Amelia Street, Florence Street, Forest Street, Gladstone Ave, Joseph Street, Llydican Ave, St Clair Street, and Victoria Ave.