With advancements in technology and the volatility of worldwide fuel prices, battery powered generators are on the rise. how a hybrid generator could be incorporated into your next project along with the four key advantages. To incorporate real numbers into the blog we will also look at the advantages in relation to a Power Electrics case study. THE GREEN FACTOR The most common and reliable way is a diesel genset with an integrated lipo4 battery. Very much like a hybrid car, the generator acts primarily as a battery charger or power source when demand is higher, therefore greatly reducing the need for the diesel generator to be running. The reduction in the running time of the engine reduces the emissions output of the generator greatly up to 90% less. Hybrid generators may also be combined with renewable sources such as solar or wind to charge the battery. This could mean that in summer months or windy days, the generator is not required to charge the batteries at all, further reducing the project emissions. REDUCE FUEL BILLS Along with the green credentials, a Hybrid Generator can reduce the amount of fuel used over a project, therefore reducing project fuel bills. As a matter of fact, the engine will run up to 90% less, compare to a conventional generator, resulting in huge savings on fuel, logistics cost, maintenance cost, and lead to an increased lifetime of the hybrid genset the engine of the generator was only required at certain times of the day to ensure the lipo4 battery was charged MINIMISE NOISE ON SITE The battery is absolute silent when it’s serving. Although diesel generators have come a long way in acoustic reduction, they still make around 75 dB(A) at 1m, so therefore when sound is critical a hybrid generator solves that problem. F.i. in residential area’s the security system, and yard lighting is not asking for an engine running, in the night, as the battery have enough power stored to go on all night UNINTERRUPTED POWER SUPPLY In the situation where power is critical it is important that there are no interruptions from gridd supply. With a stand-by diesel generator you will experience a go “trough dark” a few seconds until ATS system takes over. Whit a hybrid generator, the battery system will ensure a continuous power supply. This is important when power is critical, for example computer systems which do not have their own Uninterrupted Power Supply (UPS). In summary, hybrid generators can provide dependable power which is emissions friendly, can reduce fuel bills, minimise noise on site and provide an uninterrupted power su

HOW IT WORKS? Telecommunications operators, all over the world face severe challenges in powering mobile base station (BTS) sites in remote areas. In many cases, the sites are simply too far or unreliable from the AC grid for AC mains powering to be economic. These sites are often powered by small diesel generator sets, running continuously. Sealed lead acid (VRLA) batteries provide back-up power to generator maintenance, start up and cover the occasional case when fuel runs out. Ongoing costs are high and include: • Direct fuel cost • Truck rolls. Refuelling is usually needed every once a week,...

Typically, the generator will run for about 10 to 20% of the time. For the rest of the time, the battery is discharging. A full cycle can take around one day, depending the characteristics of the load, and how operation is optimized. More on this later. 2. Where are the savings? Direct Fuel costs Consider this example: A 15-kVA generator in a 24/24/7 duty at a load of 40% load. Takes 1.5 litres per hour, or 252 litres per week. Change this to hybrid operation at 80% load, 20% duty cycle. Then the fuel use is 2.65 litres per hour, or 89 litres per week at 20% duty cycle. This gives a 65% fuel...

Fuel savings will depend on the frequency and duration of AC outages. In theory, if all outages are less than the battery backup time, then fuel saving is 100%. Of course, this is unlikely to be achieved. But savings of more than 50% are likely.