Northland's MP says a business lost almost half a million dollars thanks to the recent major power cut.

Grant McCullum is calling on Transpower to compensate Northlanders with discounted transmission fees for a year.

Nearly 100,000 people lost power last month when a tower toppled after maintenance crews unbolted three legs of a pylon at once.

McCullum says a big timber mill had to shut for five days - costing it nearly $500,000.

"This is an opportunity for all Northlanders to get something back, because everyone was affected. Whether it was your people at home having cold showers - or that sort of thing."

LISTEN ABOVE

• Electricity Authority boss: “Consumers have a right to have confidence in their electricity supply.”
• 'Unacceptable': Energy Minister on fallen pylon that cut power for 100,000 Northlanders
• Businesses expect "significant" losses in wake of Northland power outage
• Transpower CEO says speculation is "unhelpful" in restoring power to Northland