The request was filed with the Idaho Public Utilities Commission last week. The commission has up to seven months to consider the increase. This comes on the heels of another rate increase—this time attributed to the region's poor winter snow pack—that raised bills an average of 14.5 percent.
The proposed increase works out to roughly 4.5 percent for residential customers. Typically, bills would increase by an average of $2.86 per month. Rate increases will vary for commercial and industrial users.
According to a statement issued by Idaho Power, the company has put more than $300 million into new infrastructure since its last base rate increase in 2005. This includes nearly 650 miles of transmission lines and 10 new substations.