GreenGo and SELECT partner to co-develop Mauritania’s massive Megaton Moon project, creating a major green ammonia hub powered by solar and wind.
GreenGo Energy A/S (“GreenGo”), a prominent Danish renewable energy developer, has entered into a significant strategic partnership with S.E.T. Select Energy GmbH and its affiliate Select New Energies GmbH (collectively “SELECT”), a Hamburg-headquartered global energy trading and logistics firm. Together, the two companies will collaborate on the co-development and long-term offtake arrangements for the visionary “Megaton Moon” Power-to-X (PtX) project in Mauritania, an initiative expected to become one of the most ambitious green ammonia ventures in the world.
Earlier in the year, GreenGo took a major step in expanding its global footprint by signing its first African cooperation agreement with the Mauritanian authorities. This agreement underscores the company’s intent to accelerate the worldwide shift toward green hydrogen and ammonia production. At the core of this effort is the Megaton Moon facility, planned approximately 20 kilometers south of Nouakchott, Mauritania’s capital. The project is designed as a fully off-grid system powered exclusively by abundant local solar and wind resources. By integrating desalinated seawater for electrolysis and nitrogen sourced from air separation, the project aims to produce green hydrogen, which will then be converted into green ammonia. The output will support deep decarbonization in sectors such as fertilizers, refining, petrochemicals, heavy transport, and power generation.
The Megaton Moon project will be developed in three expansive phases:
Phase 1:
The first phase targets an annual output of around 355,000 metric tons of green ammonia. This stage will rely on a 500 MW electrolyser system fed by wind and solar energy. GreenGo expects to complete Front-End Engineering Design (FEED) by 2027, with a Final Investment Decision (FID) scheduled for 2028. If timelines progress as planned, Phase 1 production could commence by 2031.
Phase 2:
The second development stage will scale the facility significantly, raising total annual capacity to as much as 1.7 million metric tons of green ammonia. This expansion will be supported by more than 2.5 GW of electrolyser capacity, enabling a substantial increase in renewable fuel output.
Phase 3:
The final phase envisions pushing production capability to approximately 4.0 million metric tons per year. This expansion will depend on securing additional land allocations from Mauritanian authorities and aligning with global demand growth.
The project benefits from strategic recognition and support from the Mauritanian government, including favorable fiscal and tax conditions. Product exports are planned through the Port of Nouakchott, strengthening Mauritania’s position as an emerging hub for green fuels.
As co-developer and exclusive offtake partner, SELECT will oversee export infrastructure development and apply its global trading expertise to manage long-term marketing, transshipment, and distribution of green ammonia. SELECT also intends to explore potential financing pathways to support project execution.
GreenGo’s CEO and Founder, Karsten Nielsen, expressed strong enthusiasm for the collaboration, noting that SELECT’s market access and logistics capabilities will play a critical role in unlocking the full value of Megaton Moon. Felix Danger, Managing Director of Select New Energies, emphasized that Mauritania’s exceptional renewable resources make it an ideal location for producing cost-competitive e-fuels that meet European standards.
All green ammonia produced under the project will be developed in accordance with European technical and sustainability requirements, positioning Megaton Moon as a cornerstone of the global clean-energy transition.
