The main components of one type of an are a boiler heated by
     The main components of one type of an  are a boiler (heated by coal, oil, gas, or nuclear fuel) that produces steam that turns a turbine that turns a generator that produces current.  and  are two inventors who played important opposing historical roles in deciding whether AC or DC would be used to distribute electrical power from the generating sites to the sites where it was used.  An  consists of electrical power generating stations and high power transmission lines, electrical substations, and distribution lines that carry the electrical power to the sites where it is used. 
  
  Solution
a)power plant
b)Thomas Alva Edison and Nikola Tesla. Edison invented DC current and Tesla invented AC.
c)Power System

