The best replacement for generators is alternators.

The best alternatives to generators are rated as following:
★★★★★  alternators
★★★★  motors
★★★★  inverters
★★★  yamaha generators
★★  honda generators
★★  generac
★★  promises
★★  iterators
★★  gas generators
★  diesel generators
★  coroutines
★  fibers
★  honda
★  solar panels
★  electric motors
★  generators
★  propane generators
  gasoline generators
  turbines
  generac generators
  gasoline
  gas powered generators
  iterators python
  champion generators
  ionizers
  natural gas generators
  tweaks
  portable generators
  dc generators
  propane

Your alternative for generators is not listed? Suggest!
Speaking about generators, one probably shouldn't forget about inverters.

Other search terms related to generators and their ratings are:
★★★★★ inverters
You have in mind a companion for generators and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of generators in all years. Click on graph for more.
generators
alternators
motors