The answer to 'how much is generator installation upgrade' is that the cost can vary significantly depending on several factors. Generator installation upgrades typically range from a few hundred dollars for a basic setup to several thousand dollars for a more complex system.
The main factors that influence the cost include the size and power output of the generator, the complexity of the electrical work required, the accessibility of the installation site, and any necessary permits or inspections. Additionally, the cost may be higher if the installation requires significant modifications to the home's electrical system or additional construction work.