There's one item almost everyone buys "just in case" and then uses three times in its entire life: the power generator. You get it for the RV, for the house in the countryside, for that weekend when a blackout is forecast — and for the rest of the year it sits in the garage under a tarp, doing nothing but taking up space.

Here's the paradox: the generator is one of the highest-value rental items out there. It's expensive to buy, rarely needed, but indispensable when it is — and the people looking for one are willing to pay well, because the alternative (no power at a wedding, on a job site, or during an event) simply isn't an option. In this guide we break down how much you can really earn renting out a generator on Lendmates, how to set your price, who rents one, and the "power kit" strategy that doubles the value of every booking.

11 months
the average time per year a privately owned generator sits idle and unused

Why a generator is the perfect item to rent out

Peer-to-peer rental works best with expensive items that are used rarely — and that's exactly the generator's profile. People who buy one spend anywhere from €300 to €1,500 on a machine that, statistically, runs only a few dozen hours a year. On the other side is a large and growing audience: anyone hosting an outdoor event, anyone who needs power where the grid doesn't reach, anyone tackling a small DIY job site, or simply someone who wants a backup for the summer heat waves, when air conditioners push local power lines to their limit.

Unlike many seasonal items, the generator has demand spread across the whole year, with peaks that stack up: weddings and countryside parties in summer, fairs and festivals in autumn, markets and Christmas lights in winter, pruning and yard work in spring. There's no truly "dead" month.

What you can charge: reference rates

Rental price depends mostly on power output (measured in watts or kVA) and type. Inverter generators — quieter and safe for sensitive electronics — command a premium over traditional petrol or diesel models. Here's a reference table for the European market, based on a daily rental net of the Lendmates commission.

Generator typePurchase valuePrice/dayWeekend (3 days)
Portable inverter 1–2 kW€300–600€20–30€50–75
Inverter 2–3.5 kW€600–1,000€30–45€75–110
Traditional petrol 3–5 kW€400–800€35–50€90–130
Diesel 5–7 kW€900–1,500€55–80€140–200
Three-phase set 7 kW+€1,500+€80–130€210–330

These figures reflect an average urban and rural market and can climb noticeably during peaks (August for events, December for festive lighting). A mid-range inverter generator — the most requested one — typically lands at €35–45 per day, an attractive net given the item would otherwise be sitting idle.

💡 The principle is always the same: every day your generator sits idle is earnings lost. A €700 inverter rented just 6 days a month at €38/day generates around €228 net monthly — nearly a third of its purchase price recovered in a single month.

Seasonal earnings simulation

Let's run the numbers on a 3 kW inverter generator, the most versatile and in-demand model. We'll assume three levels of activity: an occasional lender who accepts only a few requests, a regular one who keeps the calendar up to date, and an active one who promotes the listing and replies fast.

Lender profileDays/monthMonthly earningsAnnual earnings
Occasional3–4 days€110–160€1,300–1,900
Regular7–9 days€250–360€3,000–4,300
Active12–15 days€430–600€5,100–7,200

Even the occasional profile pays back the purchase cost in a little over a year. The regular profile — realistic for most lenders who keep their calendar tidy — recovers the full investment in about 3–4 months, and from there on it's all net profit on an item you own anyway.

Who rents a generator?

Understanding your customer helps you write the right listing and set the right price. Generator borrowers almost always fall into one of these categories:

"I'd bought the generator for my daughter's countryside wedding. I used it one day. I've been renting it out for a year now and it's already paid me back double what it cost."
— Giuseppe, 57, near Cuneo

The "power kit" strategy

Here's the trick experienced lenders know well: a generator on its own has value, but a generator with accessories is worth much more and justifies a higher rate. Someone renting a generator almost always needs the gear around it too, and finding it all in a single listing is a huge added value.

A well-built power kit can include:

Adding the kit lets you raise your daily rate by 25–40% and, above all, sets you apart from every other listing offering "just the machine." It's the same logic we apply in other categories: just like with party equipment rental, the complete package converts far better than a single item.

💚 Practical tip: photograph the generator running, not just switched off in the garage. A shot of the display showing the watts delivered, or a lamp plugged in and lit, instantly signals the unit works and is ready to go — and cuts down on chat questions.

Safety and best practices: what to put in your listing

A generator is an item that demands care, and communicating that well protects you and reassures the borrower. There are a few golden rules to always spell out in the description.

Never indoors

Combustion generators produce carbon monoxide. They must be used only outdoors, away from doors and windows. Stating this clearly isn't just common sense — it shows you're a serious, responsible lender.

Hand over with a defined fuel level

Set a simple rule — for example "handed over half-full, returned at the same level" — to avoid arguments about fuel. Many lenders hand over empty and ask for it back empty, leaving refuelling to the borrower.

Oil check and run hours

Note the oil level and the last service. For longer rentals, agree on a run-hour cap beyond which a top-up is needed: it protects you and gives the borrower appreciated transparency.

On Lendmates, the deposit and QR-code security system covers you in case of damage or a return in different condition than at handover. Always photograph the unit before and after the rental: those photos are your evidence in any dispute.

🎯 Rule of thumb: a well-photographed inverter generator, with an accessory kit and a listing that clearly explains power, use and safety, earns on average €250–360 net per month with very little effort — on an item you'd otherwise have left in the garage.

Setting the right price

Three variables decide what you can charge: power output (more watts, higher rate), noise level (quiet inverters are worth more for events and RVs), and season. During high-demand months — August for events, December for festive lights — you can raise your rate without losing bookings. In quieter periods, dropping the price slightly keeps the calendar full instead of waiting for the peak.

If you want to dig into the logic behind commissions and margins, we've written a full guide to how much a lender earns on Lendmates, with per-category simulations and the factors that separate a listing that earns from one that sits idle.


Your generator can start earning.

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