Generator rental

Working in the construction, telecom, or renewables industry and looking for a generator to rent, not buy? That's usually the right call. A generator only proves its worth while your project is running. Outside of that, it sits idle, loses value, and still needs maintenance. For temporary power on a project, renting is almost always the more sensible option, both for your budget and for the equipment itself.

At Volta Energy, we take that a step further: instead of renting you a standard diesel generator, we rent out a 3-in-1 mobile power system that costs less to run, causes less disruption on site, and comes with the full service built in.

Buying a generator makes sense if you'll run it constantly, for years, on one site. For most construction, telecom, and infrastructure projects, that's not the reality. Needs for energy shift as a project moves through its phases, and once the project wraps up, a generator you own becomes dead weight: it still needs storage, maintenance, and eventually replacement, whether it's running or not.

Renting solves that. You get the right capacity for the phase you're in, professional maintenance included, and no asset sitting on your balance sheet once the job is done.

Search for "generator rental" and you'll mostly find diesel and petrol units. At Volta Energy, we think that's outdated. A diesel generator runs constantly whether you need the power or not, burns through fuel, and emits carbon dioxide (CO₂) and nitrogen oxides (NOx) the entire time it's running. It's also loud and, frankly, doesn't smell great to work next to.

Our solar generators work differently. Each system combines solar panels to generate energy, a battery to store it, and remote monitoring to track consumption and output in real time. Solar and battery cover most of the load, day and night, and a clean backup generator running on HVO100 biofuel or methanol only kicks in when it's genuinely needed. The result: on average, 60% less fuel used than a comparable diesel generator, which typically saves around €200 per week, alongside far less noise and no diesel fumes on site.

During the day, the solar panels generate energy, even in cloudy or rainy conditions, and store it in the battery. That stored power keeps your site running in the evening and overnight, and it acts as a buffer for peak loads. If demand runs higher than solar and battery can cover on their own, such as during sustained heavy use or an extended low-sun stretch, the clean backup generator activates automatically and shuts off again once it's no longer needed.

We don't just deliver a generator and leave. Every rental comes as a complete, fully managed service: delivery, fuel management, maintenance, and remote monitoring, all included in one fixed all-in-one price. No separate contracts to arrange, no surprise costs, and no need to keep an eye on fuel levels yourself. You get reliable power exactly where and when you need it, and we handle the rest.