According to the company, the general rate case settlement is designed to recover $2.8m in additional annual electric revenue and to provide $1.1m in additional annual natural gas revenue.
The settlement agreement is supported by all other parties involved in the company’s electric and natural gas general rate filings.
The settlement, if approved by the Idaho Public Utilities Commission (IPUC), will result in a 1.1% increase in electric base rates and a 1.6% increase in natural gas rates, effective 1 October 2011.
When combined with Avista’s other proposed rate adjustments now pending before the IPUC, the results would be a net overall decrease in electric rates of 2.4% and a net overall decrease in natural gas rates of 0.8%, the company said.
If IPUC approves the settlement and the other proposed electric rate adjustments, a residential customer using an average 956kWh per month would see a $1.79 per month decrease, or 2.1%, for a revised monthly bill of $82.02.
A residential customer using an average of 62 therms of natural gas would see a $0.27 per month decrease, or 0.4%, for a revised monthly bill of $60.49.