Why a Cheaper Generator Can End Up Costing More Than an Expensive Power Station
A generator's fuel cost scales directly with hours of actual use — even a modest fuel consumption rate of roughly 0.5-1.0 gallons per hour adds up meaningfully across dozens of hours a year, every year, while annual maintenance (commonly $50-150 or more for a portable unit) is a further recurring cost a battery power station simply doesn't have — over a long enough comparison window, these accumulated recurring costs can add up to more than the price difference that made the generator look cheaper in the first place.
This is exactly the kind of hidden long-term cost that a simple sticker-price comparison misses entirely.
Running the actual numbers
At roughly 0.75 gallons per hour and a typical fuel price, just 50 hours of generator use in a year can add up to a meaningful chunk of change in fuel alone — multiply that by several years of similar usage, plus annual maintenance, and the accumulated total can approach or exceed the price gap between a generator and a comparable battery power station.
Why this doesn't mean generators are always the worse choice
For genuinely rare use (a handful of hours across an entire year), the accumulated fuel and maintenance cost stays low enough that a generator's lower upfront price can still win out overall — the Battery vs. Generator Cost Calculator is built specifically to run your own expected hours of use through this calculation rather than relying on a generic assumption either way.