The answer to 'generator installation cost' is that the cost can vary significantly depending on several factors. Generally, the total cost for a residential generator installation can range from a few thousand dollars to over $10,000, with the average being in the $5,000 to $8,000 range.
The main factors that influence the cost include the size and type of generator, the electrical work required, the complexity of the installation, and any necessary permits or inspections. Larger, whole-home generators tend to be more expensive than smaller, portable models. Additionally, the accessibility of the installation site and any needed electrical upgrades or panel changes can also impact the overall cost.