Hyundai HDC-6 Neptune: Hydrogen Semi truck is here.

Hyundai HDC-6 Neptune

HDC-6 Neptune a hydrogen semi from Hyundai

Hyundai Motor Company recently revealed the first rendering of Neptune. The Hyundai HDC-6 Neptune is a concept semi-truck that runs on Hydrogen. It’s a fuel cell vehicle (FCEV) in the commercial segment.

HDC 6 Neptune
HDC 6 Neptune

Furthermore, the company aims for zero carbon emission trucks. HDC-6 Neptune clearly highlights the company’s vision. The name HDC-6 Neptune communicates a lot. The Neptune symbolizes natural elements of the universe. These elements have an abundance of hydrogen. In fact, it is the largest potential source of hydrogen on earth.

In addition, Hyundai is aiming to sell these trucks worldwide starting from Switzerland. The commercial trucking has a clear link with carbon emission. The company is focusing on this segment for the exact same reason. Hyundai wants to create a carbon-neutral society.


The overall design matches with road-proven Xcient fuel cell truck from Hyundai. The Hyundai HDC-6 Neptune has a large front windshield. So, it simply dominates above all. The LED screen in the front grill is very useful to showcase information.

Furthermore, the steps leading to the cabin can tuck away. So, it simply improves the overall design and aerodynamics. This concept-truck design meets the current standards. Hence, it has a design that matches the real-world requirements. It also follows regulations like a 41-foot turning radius requirement. While designing these, a truck company takes global standards into consideration.

Hyundai Neptune Interiors
Hyundai Neptune Interiors

Hyundai HDC-6 Neptune has a futuristic cabin just like a concept car. The A-pillars have screens so they show what is on the other side. The cabin has a small living space that includes a kitchen, toilet, and shower. It also includes sleeping space for two. In autonomous mode, the entire windshield changes into a movie screen.


The Hyundai HDC-6 Neptune is not at par in comparison with diesel semis. The company will refine the current technology before its commercial production. The Neptune has two current-gen fuel cell stacks. Each stack produces 127 Hp. So, the combined power output is 255 Hp.

Furthermore, the Neptune has an approx range of 600-800 miles. We can also add more tanks for more range. Hyundai is trying to develop a hydrogen ecosystem on the infrastructure front. Neptune will probably be ready for commercial production in 2023. In conclusion, Hyundai is aiming to get into the carbon-neutral race in the commercial vehicle market.

Image courtesy: Hyundai

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Sushant is an entrepreneur, marketing consultant, and an auto-enthusiastic blogger. He regularly publishes specific articles on the latest happenings in automotive technology. When not writing a blog, he engages in his other ventures or goes on long-distance motorcycle rides. Follow me on Twitter.