How Everllence Is Shaping The Future Of Sustainable Maritime Travel With Ethanol Fuel

Published on December 9, 2025

Everllence, a leader in engine technology, has announced a significant achievement in sustainable fuel development. It has successfully operated a 21/31 dual-fuel engine entirely on ethanol. Tests at the company’s facilities in Frederikshavn, Denmark, mark a key milestone in the maritime industry’s transition to greener fuels. Everllence has invested several years in this engine platform and has now shown it can run efficiently on ethanol at all load points.

For Everllence, this development is an important move forward in its goal of reducing emissions in the global maritime sector. The company has been at the forefront of alternative fuel technologies, and the success of the ethanol-powered engine represents another accomplishment in its mission to lessen the industry’s dependency on traditional, polluting fuels.

The Evolution of Everllence’s Dual-Fuel Technology

Everllence has led the way in fuel-flexible engine solutions for over a decade, starting with a two-stroke methanol-burning engine. The company’s first commercial engine of this kind entered service in 2016, paving the way for further advancements. Over the years, Everllence has built a reputation for creating engines that burn alternative fuels efficiently, such as methanol and now ethanol, making the maritime industry’s shift to more sustainable practices more possible.

The 21/31 engine, crucial to Everllence’s latest innovation, is designed to operate with both ethanol and methanol, providing a flexible solution for the changing maritime fuel market. Recent tests in Frederikshavn have demonstrated that the engine performs well on ethanol, confirming the company’s capacity to adjust its technology to the increasing interest in ethanol as a fuel source.

Challenges and Market Demand for Ethanol

As Everllence advances in fuel technology, the company’s leaders have pointed out that growing interest in ethanol presents new challenges for both engine makers and shipowners. Company sources indicate there is considerable uncertainty in the market about the best fuel strategy to follow. Although methanol has been a dependable fuel for years, ethanol is gaining popularity due to its environmental advantages and the rising need for alternative fuels in shipping.

Everllence’s successful demonstration of its 21/31 engine operating on ethanol helps clarify some of these uncertainties. By proving that the engine can run smoothly on ethanol, the company highlights the fuel’s potential and encourages wider use in the maritime sector. However, company representatives stress that clear regulations are needed to support ethanol as a sustainable fuel choice and that greater market demand is crucial for the industry’s transition.

Ethanol as a Sustainable Maritime Fuel Solution

Ethanol, a renewable fuel made from plant materials, provides a promising alternative to traditional fossil fuels in the maritime sector. When burned, ethanol emits fewer greenhouse gases than standard marine fuels, making it an appealing option for shipowners and operators wanting to decrease their carbon footprints. Everllence’s successful testing of its ethanol-powered engine is a crucial step in proving that ethanol can serve as a viable, large-scale fuel solution for the maritime industry.

Tests conducted in Frederikshavn, Denmark, have confirmed that Everllence’s 21/31 engine operates efficiently and reliably on ethanol. These results will facilitate the broader adoption of ethanol in the maritime industry, as companies like Everllence continue to improve their technology and advocate for the necessary regulations to support its use.

A Commitment to Decarbonizing Maritime Industry

Everllence’s focus on developing alternative fuel technologies is part of its larger mission to lower carbon emissions in the global maritime industry. With the launch of its 21/31DF-M (Dual-Fuel Methanol) unit in 2024, the company became the first to introduce a small-bore, four-stroke, methanol-burning GenSet, strengthening its position as a leader in sustainable engine technology. With the successful operation of its engine on ethanol, Everllence expands its range of fuel-flexible solutions.

According to Everllence’s leaders, the company has a unique responsibility to drive innovation in the maritime sector, especially as the world strives to meet international emission reduction goals. The company is dedicated to developing technologies that meet industry needs while promoting a more sustainable and environmentally friendly future for global shipping.

Next Steps and Future Prospects

With the successful ethanol tests completed, Everllence is now focused on analyzing the data and planning the next phases of its fuel-flexible engine development. The company’s leaders are confident that ethanol will play a key role in the future of maritime fuel options, but they recognize that more work is required to create a market for the fuel and ensure the needed infrastructure supports its widespread use.

Looking ahead, Everllence is committed to collaborating with industry stakeholders, including regulators, shipowners, and fuel suppliers, to make ethanol and other alternative fuels viable for the maritime sector. The company is hopeful that as global shipping moves toward greater sustainability, ethanol will increasingly be a significant part of the fuel mix.

Conclusion

Everllence’s successful testing of its ethanol-powered 21/31 engine marks a major advancement in developing sustainable maritime fuel solutions. As the company continues to innovate and refine its engine technology, the maritime industry moves closer to adopting alternative fuels like ethanol, which provide considerable environmental benefits. While challenges persist, including the need for supportive regulations and market demand, Everllence’s commitment to reducing emissions and leading with fuel-flexible technologies is evident. Through these developments, the company is contributing to a more sustainable future for global shipping.