Does IREA offer different billing options? I know APS down here believes your KwH usage is worth every penny, till you look at the options they offer. By doing some homework and talking to APS we've dropped the summer average down $45 - $50 per month.
I "think" rural power companies slam you hard, in the warmer months, as most rural homes have propane heat, stoves and driers. So come cooler weather (depending on area) their cash cow dies off.