Add the Southwest Gas rate request to prior increase applications that electric utility NV Energy filed with the utilities commission, and the typical local household could see its utility bills jump nearly $36 a month by the end of 2009, though the commission will have the final say in any actual rate gains. The commission has scheduled public hearings at the Las Vegas Convention Center on Monday at 1 p.m. and 6 p.m. to let consumers weigh in on the NV Energy rate case. The commission didn't make a statement Friday on the Southwest Gas filing, but a spokesman said the agency will hold a pre-hearing conference soon to draw up deadlines and hearing dates for the case. General rate cases last six months. Nevada's consumer advocate, Eric Witkoski, was traveling Friday afternoon and unavailable for comment. This is the first general rate case since 2004 for Southwest Gas.