part i item 1 entergy corporation , domestic utility companies , and system energy entergy louisiana holds non-exclusive franchises to provide electric service in approximately 116 incorporated louisiana municipalities . most of these franchises have 25-year terms , although six of these municipalities have granted 60-year franchises . entergy louisiana also supplies electric service in approximately 353 unincorporated communities , all of which are located in louisiana parishes in which it holds non-exclusive franchises . entergy mississippi has received from the mpsc certificates of public convenience and necessity to provide electric service to areas within 45 counties , including a number of municipalities , in western mississippi . under mississippi statutory law , such certificates are exclusive . entergy mississippi may continue to serve in such municipalities upon payment of a statutory franchise fee , regardless of whether an original municipal franchise is still in existence . entergy new orleans provides electric and gas service in the city of new orleans pursuant to city ordinances ( except electric service in algiers , which is provided by entergy louisiana ) . these ordinances contain a continuing option for the city of new orleans to purchase entergy new orleans' electric and gas utility properties . the business of system energy is limited to wholesale power sales . it has no distribution franchises . property and other generation resources generating stations the total capability of the generating stations owned and leased by the domestic utility companies and system energy as of december 31 , 2004 , is indicated below: .
what portion of total capability of entergy corporation is generated by entergy arkansas?
( 1 ) "owned and leased capability" is the dependable load carrying capability as demonstrated under actual operating conditions based on the primary fuel ( assuming no curtailments ) that each station was designed to utilize . entergy's load and capacity projections are reviewed periodically to assess the need and timing for additional generating capacity and interconnections . these reviews consider existing and projected demand , the availability and price of power , the location of new loads , and economy . peak load in the u.s . utility service territory is typically around 21000 mw , with minimum load typically around 9000 mw . allowing for an adequate reserve margin , entergy has been short approximately 3000 mw during the summer peak load period . in addition to its net short position at summer peak , entergy considers its generation in three categories : ( 1 ) baseload ( e.g . coal and nuclear ) ; ( 2 ) load-following ( e.g . combined cycle gas-fired ) ; and ( 3 ) peaking . the relative supply and demand for these categories of generation vary by region of the entergy system . for example , the north end of its system has more baseload coal and nuclear generation than regional demand requires , but is short load-following or intermediate generation . in the south end of the entergy system , load would be more effectively served if gas- fired intermediate resources already in place were supplemented with additional solid fuel baseload generation. .