Frequently asked questions

How many hours do diesel generators last?


The lifetime of a particular unit depends on the hours of operation rather than the years since purchase. While an average gasoline generator may only last around 1000 hours, most machines can easily last 30,000 hours without needing a major overhauling. Even if you use them for 4 hours a day, it will still take 14 years before you reach 20,000 hours.




What is the best diesel generator for home use?


The most popular diesel generators for homeowners are undoubtedly the ones that offer longer runtimes in tandem with lower running costs. They are also less volatile and safer than propane or gasoline-based generators. If you’re seeking a reliable home power backup solution, then you should opt for small kva gensets like 3.5kva, 7.5kva, 15kva etc., which are portable as well as silent.




How much is a diesel generator?


When it comes to purchasing long-term appliances like diesel generators, it’s always wiser to seek value for money over a low base price. You should consider the manufacturer, the capacity, and the wattage before you pick the right generator for the right purpose.




Can you refuel a generator while it running?


While it is vital to follow a regular maintenance schedule for your standby diesel generator and ensure it never completely runs out of fuel while it is under any load, you must always switch it off if you need to refuel it. Even though diesel fuel’s low volatility makes it difficult to ignite at normal environmental temperatures unlike gasoline and propane, the safest practice is to shut off the generator for the refuelling process.




Is running a generator cheaper than electricity?


In general, electricity from the grid is the default power source because of its significant cost efficiency. Diesel generators however, aren’t intended to be substitutes for grid power, but reliable back-ups that keep your operations running without missing a beat due to power failures or load shedding. They can be an invaluable investment as off-grid solutions in areas with limited access to grid power.




How much electricity does a diesel generator produce?


A general rule of thumb is that a genset will use 0.4 litre of diesel per kWh produced. Various electrical applications have very different power requirements, so it is essential to understand each particular need. You can simply list down all the electrical appliances that need to be powered in your home, office or workshop. Then, add up their total power consumption in Watts to determine what capacity fulfils your electricity demand.




How much diesel does a generator use per hour?


Keep in mind that fuel consumption will also vary based on variables such as brands, load, and climate. A generator load calculator may help with gathering more accurate data. To give you an idea of consumption, a 20 kilowatt unit will use about 1.6 gallons per hour running a full load. A 30 kilowatt unit will use about 2.9 gallons per hour also running a full load.




How efficient are diesel generators?


If we directly compare the volume of fuel needed to power a generator, diesel gen sets always have a leading edge in terms of fuel-efficiency compared to other fuels. However, the diesel generator efficiency is a collaborative outcome of the system’s load factor, capacity, engine design, ambient conditions, fuel control, cooling system, and operating speed. This efficiency may deviate during operation as it becomes further subjected to different load conditions, ambient conditions, and operational and maintenance practices.