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Air pollution in agriculture

Green hydrogen

A path to decarbonise agriculture

25. September 2023

Solution provider

Copenhagen Infrastructure Partners (CIP)

Founded in 2012, CIP today is the world’s largest dedicated fund manager within greenfield renewable energy investments and a global leader in offshore wind. The funds managed by CIP focus on investments in offshore- and onshore wind, solar PV, biomass and energy-from-waste, transmission and distribution, reserve capacity and storage, Power-to-X and advanced bioenergy.

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Green Fertilizer Denmark, a consortium committed to advancing climate-friendly fertiliser production, is set to establish a state-of-the-art facility in Denmark. The primary objective is to enable the production of climate-friendly fertiliser based on green ammonia.

green ammonia plant

HØST: Green ammonia on a gigawatt scale

HØST is a project company under the management of Copenhagen Infrastructure Partners (CIP).

The development of the project is expected to be made in 2-3 years, followed by final investment decision in early 2023. Construction of the project is expected to be finalized in 2026.

Read more about the project


The green ammonia will be sourced from the Høst PtX Esbjerg plant (HØST), which is currently under development. The plant will leverage electrolysis technology on a gigawatt-scale to generate industrial-grade green ammonia. The plant will operate flexibly, adapting to the available power production from renewables.

The project will employ the conventional Haber-Bosch process, which is widely used in the industrial production of ammonia. The process involves the reaction of nitrogen with hydrogen, facilitated by a catalyst, under high temperature and pressure to yield ammonia.


The green ammonia supplied by the HØST project will have a carbon footprint amounting to a mere 10 percent of conventional ammonia. In this way, HØST will play a key role in the ambitious initiative by strengthening security of supply and contributing to the transition towards more environmentally-friendly practices.

Green hydrogen is Danish hydrogen

This case is a part of the white paper “Green hydrogen is Danish hydrogen”. Discover Denmark’s plans to produce green fuels and decarbonise global transport and energy-intensive industries.

Explore the white paper