Home & DIY
Is it cheaper to buy or rent a portable generator?
Break-even days to buy vs rent a portable generator — from daily hire rate, purchase price and how long you need it.
Quick answer
For a portable generator, break-even days ≈ purchase ÷ daily rent. At about €750 new and €45/day hire that is 16.7 days. A 3-day job costs ~€135 in hire — buy only if you will reuse, keep, or resell it.
Advanced settings
Recommendation
Rent — fewer days than break-even
Break-even (simple)
16.7 days
Rent for your project
35.00
Net buy cost (after resale)
$375.66
Cheaper option saves
$240.66
Daily rent is what the yard quotes before deposit and extras. Break-even ignores resale until you open advanced settings — use those if you plan to sell the tool after one job.
How it works
Add storage and servicing to the buy side; add deposit, delivery and the consumables that this machine eats. Below 16.7 planned days, rent and return. Every season of use tips toward buying a mid-range portable inverter generator.
Hiring by the label is how a site ends up with power it cannot use. The machine usually arrives without distribution — no site board, no residual current protection, no cables of the right length and section — and those are exactly the parts that make the supply legal and safe to work from. Ask what is included before the day. One more point specific to hire: a large diesel run for weeks on a light load never reaches temperature and wet-stacks, which fouls it and can come back to you as a charge, so size close to the actual load rather than taking the biggest machine on the yard.
Frequently asked questions
When does buying a portable generator pay off vs renting?+
Break-even ≈ purchase ÷ daily rent: €750 ÷ €45/day ≈ **16.7 days**. Fewer → rent; more → buy if you will reuse or resell (tweak resale % in advanced settings).
How much does a portable generator hold its value?+
Good, and it spikes after every storm or blackout. Inverter models hold value best because they run sensitive electronics. Enter what you expect to recover in the advanced settings — it moves the break-even more than people think.
What is not included in the daily rate for a portable generator?+
Fuel, and you pay for what is missing from the tank on return. Size it honestly: a generator too small for the starting surge of a compressor or a pump is a wasted hire, not a cheaper one. Deposit and late-return penalties apply on top, as everywhere.
Is buying a portable generator online the same as hiring one?+
Online shops suit ownership. Hire includes deposit, delivery windows and return condition checks that a carton does not. If you need the machine for a few days only, price the all-in hire — not just the daily number — against a mid-range [[portable inverter generator|portable inverter generator]].
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