What size generator is needed for a construction site?
Choosing the right size construction generator for your project
For generators to run efficiently in commercial or industrial settings such as a construction site, it is extremely important to get the size of the generator right. When you rent a generator from Aggreko, the package we could offer you may differ from your initial request, as we take into account multiple factors to size a generator to deliver the best results for the environment and the bottom line.
Why would a construction generator be oversized?
There could be a number of reasons rental companies offer oversized generators, for example, to accommodate for motor starts, pump starts, and in general start-up currents; when the actual load or start-up is not known; or because a safety net or error tolerance has been added to cope for any unknowns. As a result, the customer would face higher rental and transport costs, as well as increased fuel usage and noise levels. It is not uncommon for hired equipment to run at less than 30% load meaning it is inefficient.
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Sizing construction site generators to accommodate high startup or peak loads
Generator sets are typically sized for peak loads, however, most of the time they run at low load factors. As such, this results in poor fuel economy and high emissions. There are two options to improve the efficiency when facing high start up or peak loads; a mechanical solution and a chemical solution. Each option has different benefits and offer more efficiency when powering a tower crane.