Hydrogen production by electrolysis of water: emerging techniques
Summary
The Environment Agency has published guidance on emerging techniques for hydrogen production by electrolysis of water, focused on preventing or minimising environmental impacts. It explains that, while not generally a regulatory requirement, operators seeking environmental permits must either follow the guidance or propose an equivalent alternative approach, with permit conditions set case by case where no specific BAT reference document exists.
Why it matters
Residential property surveyors may encounter hydrogen production facilities in mixed-use, regeneration or industrial-adjacent settings, where permitting and environmental controls can affect site constraints and due diligence. The guidance also signals how regulators may approach novel low-carbon technologies, which can influence planning, valuation and risk assessment around nearby development.
Key points
- Covers hydrogen production by electrolysis of water as an emerging technique.
- Applies to new plants and changes to existing plants.
- Operators must tell the regulator whether they will follow the guidance when applying for an environmental permit.
- Where no specific BAT reference document exists, regulators will set permit conditions case by case.
- Temporary derogations from BAT-associated emission levels may be granted for up to 9 months in some cases.
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