Key Details
Hydrogen and ammonia deployment must be accompanied by robust chemical safety governance, particularly as countries rapidly scale infrastructure under clean-energy transition strategies.
Theme | Key Finding | Policy Significance |
|---|---|---|
Hydrogen Risks | Highly flammable and difficult to detect due to colourless and odourless properties | Requires specialised storage, monitoring and leak-detection systems |
Ammonia Risks | Toxic, corrosive and hazardous to human health and ecosystems | Demands stringent handling, transport and emergency response protocols |
Transport Interfaces | Ports, pipelines and refuelling networks identified as major risk points | Infrastructure planning must integrate safety from the outset |
Historical Incidents | Accidents in South Korea, Norway, North Dakota and Australia cited | Single events can undermine public confidence and delay projects |
Regulatory Coordination | OECD calls for early alignment between energy and chemical safety regulators | Reduces fragmented approvals and regulatory gaps |
Energy Transition Impact | Poor safety management could slow hydrogen deployment globally | Safety becomes a prerequisite for successful decarbonisation |
Summary
Why the OECD Is Focusing on Hydrogen and Ammonia Safety
The OECD’s report, Key Chemical Safety Considerations for Energy Transition Technologies, examines the growing safety challenges associated with the rapid expansion of hydrogen and ammonia infrastructure. As governments invest heavily in clean-energy systems to achieve net-zero targets, both substances are increasingly being used as critical energy carriers, storage mediums, and transport fuels.
The report argues that hydrogen and ammonia cannot be treated simply as clean-energy commodities. Their deployment introduces significant chemical safety, transport, storage, and emergency-response challenges, particularly as new entrants with limited experience begin operating within these sectors.
Hydrogen and Ammonia Present Different Risk Profiles
A major contribution of the report is its distinction between the hazards posed by hydrogen and ammonia.
Hydrogen is not toxic but is highly flammable and can act as an asphyxiant gas by displacing oxygen in enclosed spaces. Because it is colourless and odourless, leaks can be difficult to detect. Storage often requires high-pressure or cryogenic systems, creating additional engineering challenges.
Ammonia, by contrast, is significantly more toxic. Exposure can cause severe respiratory injuries, while accidental releases can damage ecosystems and aquatic environments. Although ammonia is less flammable than hydrogen, its toxicity creates a different but equally significant set of safety concerns.
The OECD therefore stresses that safety frameworks must be tailored to the specific characteristics of each chemical rather than applying a single risk-management model.
Transport Networks May Become the Most Vulnerable Nodes
The report identifies transport interfaces as one of the most important areas of future risk. While production facilities generally operate under established industrial controls, ports, shipping terminals, cross-border pipelines, storage depots, and urban refuelling stations introduce complex interactions between industrial operations and public spaces.
As global hydrogen and ammonia trade expands, these interfaces will increasingly determine the overall safety performance of emerging energy systems. The report argues that land-use planning, emergency response mechanisms, and infrastructure zoning must therefore be incorporated into project design from the earliest stages.
Safety Governance Is Essential for Public Acceptance
Drawing on incidents involving hydrogen and ammonia facilities in countries such as South Korea, Norway, the United States, and Australia, the OECD warns that a single major accident can have consequences extending beyond immediate physical damage.
Large-scale incidents can weaken public confidence, trigger regulatory backlash, delay infrastructure approvals, and slow the broader energy transition. To avoid these outcomes, the report calls for closer coordination between energy ministries, transport authorities, environmental regulators, and chemical safety agencies throughout the lifecycle of projects.
The OECD argues that safety governance should be treated as a foundational component of energy-transition planning rather than as a compliance requirement introduced after infrastructure has already been developed.
What Is an Asphyxiant Gas?
An asphyxiant gas is a gas that can cause suffocation by reducing oxygen concentrations in the surrounding environment. Unlike toxic substances that directly poison the body, asphyxiants create danger by depriving individuals of breathable oxygen.
Hydrogen is considered a simple asphyxiant because it can accumulate in enclosed spaces without being detected through sight or smell. Industrial facilities therefore rely on oxygen sensors, ventilation systems, and continuous monitoring to manage these risks.
Policy Relevance
Strengthens the implementation of India’s National Green Hydrogen Mission by highlighting the importance of integrating safety considerations into project design and operation.
Supports safer development of hydrogen and green ammonia export infrastructure at ports and industrial hubs.
Reinforces the role of PESO and other regulators in establishing harmonised standards for storage, transport, and emergency response.
Reduces investment risks by improving safety governance and enhancing confidence among insurers, investors, and local communities.
Protects public trust in clean-energy projects, helping prevent isolated incidents from slowing broader decarbonisation efforts.
Encourages integrated regulatory oversight across energy, chemical safety, environmental protection, and transport sectors.
Follow the Full Paper Here: Key chemical safety considerations for energy transition technology