The Oregon PUC launched an investigation to look into the higher utility bills.
They found there was a rate increase implemented in January, but it was less than 1-percent, and most customers were only impacted about a $1.15.
The PUC investigated about 60 cases in the last week, all with the same conclusion.
A spokesperson said, “What we are seeing is colder weather, higher usage, longer bill periods–it’s just a combination of things.”
The utilities commission said if you’re unable to pay a bill in full, contact your company to make a payment arrangement.