Synergen Green Energy has chosen Topsoe as the technology licensor for its green ammonia plants to be built in the United States. The partnership will see Topsoe deliver its dynamic ammonia loop technology and proprietary catalysts and equipment to the standardized plants, with a designed capacity of 210,000 metric tons per year upon full operation.

Subject to a final investment decision, the first facility is expected to be operational by Q4 2028. Topsoe, a leading global provider of advanced technology and solutions for the energy transition, announced the selection on November 4, 2025.

Production Capacity and Environmental Impact

The first project, when operational, will produce 210,000 metric tons of ammonia annually and avoid approximately 400,000 tons of CO2 emissions. This reduction is equivalent to removing around 95,000 gasoline-powered passenger cars from the road for one year.

The ammonia will be produced using renewable electricity and exported to the market. The production represents a significant contribution to the availability of green fuel in the United States market.

Executive Statements on Partnership

Henrik Rasmussen, Managing Director of Topsoe Americas, expressed enthusiasm about the collaboration. "We're thrilled that Synergen selected Topsoe to collaborate on their impressive next-generation ammonia projects," Rasmussen said. "Green ammonia will add to the diversification of the fuel sources available to industry. We look forward to working with the talented team from Synergen."

Synergen Green Energy CEO Pranav Tanti emphasized the significance of the partnership for the emerging green fuels industry. "Green fuels are the beginning of a new era for the world," Tanti stated. "We are excited to partner with a renowned company like Topsoe for their innovative synloop technology that adapts to intermittent power supply. This nascent industry needs partnerships to forge the way ahead and make green fuel projects economically viable and green ammonia globally competitive. We, at Synergen, remain committed to this cause and look forward to a long-term and successful relationship with Topsoe."

Dynamic Ammonia Technology Features

Topsoe's dynamic ammonia technology adapts the production output of green ammonia to fluctuations in the supply of renewable electricity. The dynamic ammonia process plant enables the ramping up and down of ammonia production bidirectionally at a rate of at least 3% per minute in response to the fluctuating supply of hydrogen to the ammonia plant.

The technology provides significant reduction in capital expenditure and operational expenditure since hydrogen storage systems can be reduced substantially, or otherwise eliminated. The system allows renewable electricity to be stored in a zero-carbon chemical form.

Market Context and Applications

Ammonia, whether in the form of e-fuel (green ammonia) or low-carbon ammonia (blue ammonia), is expected to play a critical role in the energy transition. The fuel can be transported using existing ammonia infrastructure and has multiple end uses, not only as a fuel or hydrogen carrier but also to help decarbonize industrial processes such as steel and cement production.

Company Backgrounds

Synergen Green Energy is a leading commercial-scale developer of clean hydrogen and ammonia, advancing a portfolio of projects across the United States and India to supply cost-competitive clean fuels to global markets. The company's mission is to accelerate the energy transition by making clean hydrogen and ammonia accessible, affordable, and transformative for global end users. Synergen was founded in 2022 and is headquartered in Houston, Texas.

Topsoe is a leading global provider of advanced technology and solutions for the energy transition. Built on decades of scientific research and innovation, the company works with customers and partners to drive energy resiliency and achieve sustainability goals. Topsoe offers world-leading solutions for transforming renewable resources into fuels and chemicals, and provides the technologies needed to produce low-carbon and conventional fuels and chemicals, as well as to ensure clean air. The company was founded in 1940 and is headquartered in Denmark, with over 2,800 employees serving customers worldwide.

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