The franchise and rights herein granted shall commence on the date of the final passage hereof and shall continue in force and effect for thirty (30) years after said effective date, subject to such modifications as to which the city and the grantee may hereafter agree. Thereafter, the franchise and rights granted herein shall automatically renew for successive fifteen (15) year periods unless the city revokes such franchise and rights by ordinance on or before the expiration of the initial term or any renewal period hereof. (Ord. 2008-04, 10-14-2008, eff. 10-14-2008)