Black Hills Energy’s original rate request was filed in January 2010. According to the company, the request was necessary to cover its increased expenses, which are primarily associated with electricity supply contracts and investments in equipment and electricity distribution facilities.

Under the new rates, a typical Black Hills Energy residential customer in southern Colorado using 600kWh of power each month will see an increase of $7.90 per month, or about $0.26 per day, and typical small-business customers using 2,300kWh per month will experience an increase of approximately $26.38 per month.

The rate increase experienced by the company’s large commercial and industrial customers in Colorado will vary depending on rate class and the amount and nature of their electricity use.

Black Hills Energy currently serves approximately 93,300 residential, commercial and industrial electric customers in southern Colorado.