Environmentally friendly power generators

Environmentally friendly power generators

Now in early spring, plans are being made for the big outdoor events. Heads are currently spinning at the professionals at Elektro Hoffmann. Events that take place directly in cities or near the outskirts of cities are of great concern.

Power supply from the public grid is not always possible. It is not uncommon for the Hoffmann professionals to have to resort to external power generators even in or near cities. Complaints from residents about the background noise that a diesel-powered generator necessarily develops are preprogrammed.

For a long time, event organizers and Hoffmann professionals have been looking for solutions that reduce noise and exhaust pollution to as low as possible. Encapsulation with sound-absorbing materials reduces noise, but does not improve exhaust emissions.

So an announcement from the film industry comes just in time. A super-silent unit has recently been presented that allows three different operating modes. Powered by rechargeable batteries, solar cells or a gas engine, this type of generator promises virtually emission-free operation. The gas engine runs on Liquefied Petroleum Gas (LPG).

This liquid gas is sold today also at many gas stations in liters. It is also called autogas. This is a mixture of propane and butane. The ingredients are byproducts of extracting oil and natural gas. The mixture is stored in liquid form at a pressure of five to ten bar.

In engines autogas burns more environmentally friendly than gasoline or diesel. In Istanbul or Bangkok today all cabs run on LPG, it is mandatory.

The problem of exhaust and noise pollution, when operating power generators near homes, film productions have had for a long time. In the past, filming permits have often been refused for this reason. This of course applies to events. Concerts equally.

The technical concept of such super-silent units means that the gas-powered combustion engine is only needed for a fraction of the actual running time. Depending on the load requirements, the supply is fed from the batteries. Only when the state of charge drops to a certain level, the gas engine is switched on. So the batteries can be recharged, resp. Maintain a certain level of charge. There is also the option of charging the high-performance batteries via an external power supply. Of course, the photovoltaic panels also contribute on cloudy days. Increasingly strict environmental regulations in inhabited areas. A higher sensitivity of the residents can be more than adequately covered in this way.

The whole thing is mobile, built on a truck chassis, with an engine that also runs on LPG, so only one tank is needed.

Such super-silent units are not yet available. The first pre-series models are obviously running in trial operation. In any case, Hoffmann professionals will follow this development closely in order to be able to offer their customers the best possible technical solutions later on, as always.

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