Section 1034. Sale of surplus

Whenever the productive capacity of the
  plants and  properties  of  the  authority  together  with  any  gas  or
  electrical  energy  which  it  may acquire from other sources, creates a
  surplus over the amount of  light,  heat  and  power,  in  any  of  such
  services,  required  by the municipalities and residents of the district
  to which such service is contracted, the authority may sell such surplus
  in territory outside the district, either within or outside the  county,
  to  persons,  public or private corporations or other municipalities. In
  acquiring, by purchase or condemnation, any plant  or  property  in  the
  district  which  also  serves  any municipality or territory outside the
  district, the authority, if it deems it advantageous and  economical  so
  to  do,  may, with the approval of the public service commission and the
  consent of the board of supervisors,  serve  any  such  municipality  or
  territory  or  sell  gas,  heat,  power or electrical energy to persons,
  public  or  private  corporations  in  such   territory   or   to   such
  municipality.  The authority shall not in any case duplicate any service
  already existing in any municipality or territory outside the  district,
  without the approval of the public service commission.
    * NB Terminated July 1, 1963