Why investment profit is at the center of CMP’s rate hike

PORTLAND PRESS HERALD • August 24, 2026

Central Maine Power Co. is asking state regulators to raise the cap on revenue it can make back from its investments in Maine’s electrical infrastructure. That has become a sticking point in the monthslong debate as CMP is asking the Maine Public Utilities Commission to approve an $18 per month increase in the average household’s distribution bills. That would give the company $189 million in new revenue to pay for grid upgrades, added staff and storm recovery. Groups representing consumers in the case have argued that CMP doesn’t need more profit while Mainers struggle with the rising cost of living.