Tagdale Green Ammonia

About the online exhibition

We are presenting all the information to be displayed at our Public Exhibition on this site to enable access for all.

You can visit our the in-person exhibition:

About Tagdale Green Ammonia

Tagdale Green Ammonia will produce ammonia from wastewater, atmospheric nitrogen and renewable energy, helping to secure Britain’s independent supply of an important chemical. The project will produce up to 150 tonnes of green ammonia per day. Power will come from the consented substation to the south, which will ensure minimal new infrastructure is required to power the project.

Tagdale Green Ammonia will utilise wastewater from Lerwick’s Waste Water Treatment Works, which would otherwise be released into the sea. This means the project will obtain water in the most sustainable way and will not be placing new demands on Shetland’s fresh water supply.

The green ammonia produced will be transferred via pipeline to a private jetty in Dales Voe for export via marine cargo carriers. We expect that the ships will visit the site every 3-4 months to collect the green ammonia. A Marine Consent will be progressed for the proposed jetty site separately. Further details of the jetty design will be available at the next consultation event

About Green Ammonia 

Ammonia is produced using the Haber-Bosch process, a method that has been used on an industrial scale for over a century.

The hydrogen for ‘green’ ammonia is produced using renewable energy through a process called electrolysis to split water molecules (H₂O) into hydrogen (H₂) and 
oxygen (O₂) elements. Electrolysis is a common process that involves passing an electric current through water and separating the resulting hydrogen and oxygen. Oxygen produced will be released into the atmosphere and there will be no direct carbon dioxide emissions.

Historically, most of the hydrogen used in the Haber-Bosch process has been extracted from natural gas in a process that releases substantial volumes of carbon dioxide into the atmosphere – ammonia produced this way is known as ‘grey’ ammonia.

Why Green Ammonia?

For over a century, ammonia has been essential for modern agriculture and industry. Today, green ammonia is emerging as a unique solution to decarbonise our food chain, chemical and marine fuels, and to accelerate the energy transition.

What is ammonia currently used for?

• Fertiliser
• Industrial chemicals
• Plastics
• Dyes
• Synthetic fibres

What are the growing and new uses for green ammonia?

• Fuel, in engines or fuel cells - 
  especially maritime fuel / shipping
• Energy carrier
• Chemical energy storage
• Power generation

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How could it look?

Ammonia has been produced at an industrial scale for over a century, but the concept of producing it using renewable energy is much newer. Tagdale Green Ammonia will be one of the first green ammonia production sites in the UK.

The world’s first green ammonia facility is in Ramme, in western Denmark. The facility is powered by 50MW of solar panels and 12MW of wind turbines.

The project has been jointly developed by Skovgaard Energy, Topsoe and Vestas, and has received funding from the Danish Energy Technology Development and Demonstration Program (EUDP).

Protecting the Environment

We are committed to limiting and, where possible, avoiding any adverse environmental impacts and these assessments will help inform the design of the project.

Surveys and assessments are being undertaken by a team of specialist environmental and technical consultants. The results and findings will be detailed in an Environmental Impact Assessment (EIA) Report, which will be publicly available as part of our planning application to Shetland Islands Council.

The survey findings will help to establish where mitigation measures will be required to minimise and, where possible, negate any adverse effects. Consultation with Shetland Islands Council and statutory bodies is ongoing to determine the scope of the environmental assessments. These bodies will use the EIA Report to inform their determination of our application.

The environmental topics being examined include:

• Landscape and Visual
• Ecology and Ornithology
• Hydrology and Peat
• Historic Environment
• Traffic and Transport
• Noise and Vibration
• Air Quality
• Water and Flood Risk
• Greenhouse Gases

At this stage we are building up a picture of the existing environmental conditions on site to understand the existing baseline. An assessment will then be undertaken for each of the above environmental topics to establish if the project is likely to have a beneficial or adverse impact upon the existing site conditions.

Operating Safely

Ammonia has been widely and safely traded for decades. This means there are already established supply chains, transport vessels, handling procedures and storage terminals across the world. 

We are committed to ensuring the safe operation and construction of our projects. Tagdale Green Ammonia will be subject to a number of regulations and consenting regimes to ensure the production, transport and storage of the green ammonia is conducted safely. 

Tagdale Green Ammonia will be required to obtain a range of permits and consents to ensure it is developed and operated safely and in line with all relevant regulations.
These are inclusive of:

• Environmental Permit, which regulates activities that could impact the environment and is issued by the Scottish Environmental Protection Agency; and,
• Hazardous Substances Consent, to ensure that hazardous materials are managed safely and with proper oversight.

The Tagdale Green Ammonia site will also be subject to Control of Major Accident and Hazards (COMAH) regulations, which are designed to prevent and mitigate the
effects of major accidents involving dangerous substances at industrial sites within the UK. These regulations require operators to take measures to prevent major accidents, limit their consequences to people and the environment, and to have internal and external emergency plans in place.

The project team are committed to early and ongoing engagement with the local community and statutory bodies throughout the permitting process, to ensure transparency and address any concerns. All permits will be applied for in accordance with statutory requirements and best practice. 

Thank you for visiting

We are working to refine our proposal and complete the environmental studies for our comprehensive EIA to be submitted with a future application. You can find
out more about what is included within the EIA and stay up to date on our project website, www.tagdale.co.uk. 

We plan to submit a planning application to Shetland Islands Council in 2026.

When the proposal is submitted, interested parties and statutory consultees will have the opportunity to formally comment on the application to Shetland Islands Council. All of the information will be available to view on the Shetland Islands Council’s planning portal and our project website at the time of submission