Mr Shaw said the company had explored different options but redundancies were unavoidable. Some roles would be transferred from contracting services into the network team and the company had vacancies staff could be redeployed to - but there weren't enough vacancies for everyone.
The cuts would not affect the reliability of the Far North's power supply or the number of staff on standby, he said.
Offers of employment had come in from other lines and contracting companies, including North Power, Horizon, Delta, Electricity Ashburton and Rintoul Civil. With the exception of Rintoul Civil, however, none were in the Far North.
E Tu power industry organiser Joe Gallagher had urged Top Energy to call off its plans after a lineman was seriously injured by falling from a ladder during a storm last month. The union said the accident coincided with members' concerns about fatigue but the company said the hurt lineman had been properly rested.
Mr Gallagher said he was pleased the company had reduced the number of jobs to be cut, and that it had put in place a fatigue management policy.
"But we're still concerned ... with a reduced workforce there's an increased risk."