Chubu Electric announced on the 10th that its electricity retail subsidiary Chubu Electric Miraiz had been overcharging customers for more than two years. The cause was an error in calculating the costs that form the basis of rates, and the number of overcharged customers reached at least about 5.009 million, equivalent to roughly 57 percent of its total contracts. Half were ordinary households, and the total amount overcharged was about 1.2 billion yen, amounting to a maximum of 152 yen per month per contract, and the company will issue refunds going forward. Due to a change in the wire usage fees paid to the transmission and distribution company in April 2024, the amount by which power generation costs would increase should have been calculated as 47.4 billion yen over three years, but was mistakenly calculated as 50.1 billion yen. Chubu Electric explained, "We did not reach the recognition that this was a serious error. It was not done intentionally."
Chubu Electric Power Company,IncorporatedChubu Electric Miraiz overcharged ~5 million customers for over two years due to a rate-calculation error and must refund about 1.2 billion yen.
