Diesel, electric, hydrogen? The future of agricultural technologies

The future of agricultural machinery driveline technology is already undergoing major changes, but what lies ahead. In addition to conventional diesel engines, electric and hydrogen-based solutions are gaining ground, which are not only more environmentally friendly, but can also be more economical in the long term.

How much longer for diesel?

Diesel engines have served agriculture reliably for decades, especially in high-performance applications. However, over time, environmental regulations have tightened and fuel costs have risen, leading more and more manufacturers and farmers to look for suitable alternatives. Claas, for example, has for some time allowed the use of HVO (hydrogenated vegetable oil) in its machines, which can reduce CO2 emissions by up to 90% compared to conventional diesel. But of course this is just the beginning.

The electric powered machines

Electric drive offers significant advantages, especially for smaller machines intended for work around the farm. For example, some manufacturers have already come out with all-electric telescopic handlers, which can be ideal for lower power applications. These devices have the added advantage of being quieter, requiring less maintenance and operating with zero local emissions. This means they don’t have as big an impact on the environment while you work. However, the current power density of batteries is not yet sufficient for tasks requiring higher performance, so there is still room for improvement in this area.

Hydrogen as the fuel of the future

Hydrogen propulsion currently takes two main forms in agriculture. One is the use of fuel cell systems and the other is the use of internal combustion hydrogen engines. It is worth knowing that fuel cells convert hydrogen into electrical energy that powers the machine. New Holland, for example, introduced the NH2 hydrogen powered tractor years ago, which runs on fuel cells. However, fuel cells are currently expensive and complex, which limits their uptake. However, manufacturers are already working on the technology of the future and the right solution, so all is not lost.

Another approach is the use of hydrogen in internal combustion engines. A hydrogen-powered backhoe loader has been developed previously, which offers the same performance as the diesel version but can be operated carbon-free. This solution takes advantage of existing diesel technology while reducing the environmental impact.

Infrastructure and challenges for the future

One of the biggest challenges for technology is building the infrastructure. Storing and transporting hydrogen requires special equipment, as it leaks easily in gaseous form and requires large volumes. Fortunately, there are already mobile chargers of our own design that deliver the fuel to the machines. But that’s not the only problem: producing hydrogen is also a challenge, especially if you want to use green hydrogen from renewable energy sources.

Domestic outlook

In Hungary, electric and hydrogen tractors have already appeared and are having and could have a significant impact on agriculture. These innovative machines not only increase sustainability but also open up new opportunities for farmers. They can reduce operating costs and improve productivity. However, the lack of infrastructure and technological know-how may still be a barrier to widespread uptake.

The future of agricultural machinery drive technology is therefore diverse and exciting. While diesel engines will continue to play an important role, electric and hydrogen-based solutions have recently gained ground. The choice depends on the specific application, the size of the farm and the infrastructure. What is certain is that sustainability and environmental considerations will become increasingly important in developing agricultural machinery that does not put pressure on our planet.