hooverDam.js

var totalGen = 19;
var totalMW = 0;
var smallMW = 62;
var largeMW = 124;
var capacity = 0;

for (var genNum = 1; genNum <= totalGen; genNum++){
  if (genNum <= 4){
    capacity = smallMW;
  }else{
    capacity = largeMW;
  };

  if (genNum%2 === 0){
    totalMW += capacity;
    console.log("Generator #" + genNum +" is on, adding " + capacity + " MW, for a total of " + totalMW + " MW!");
  }else{
    console.log("Generator #" + genNum + " is off.");
  };
};