'It was significant' | NorthWestern Energy customers question sudden spike in summer power bills
NorthWestern Energy customers in Montana report sudden spikes in summer power bills, with some bills tripling or quadrupling. The company attributes this to increased energy usage due to extreme heat and a 6% rate increase. Customers have contacted the Montana Public Service Commission for assistance, which is investigating the issue. According to the company, the rate increase is generally around 6% for customers.
