Skip to content
The Climate Litigation Database

CMA Complaint on Hydrogen Heating Greenwashing by Opportunity Green

Geography
Year
2026
Document Type
Litigation

About this case

Filing year
2026
Status
Pending
Court/admin entity
United KingdomCompetition and Markets Authority
Case category
Suits against corporations, individuals (Global)Corporations (Global)Misleading advertising (Global)
Principal law
United KingdomCMA Green Claims CodeUnited KingdomCompetition and Consumers Act 2024United KingdomUnfair Trading Regulations 2008
At issue
Whether Scottish Gas Networks pls (SGN) breached the Competition and Markets Authority Green Claims Code by making misleading environmental claims relating to the use of hydrogen gas for heating homes, including portraying hydrogen as a ‘clean’ fuel, that will help ‘move away from fossil fuels’, provide ‘green energy’ to millions of homes, and is uniquely scalable and cost effective.
Topics
, ,

Documents

Summary

Opportunity Green has filed a complaint with the UK’s Competition and Markets Authority (CMA) against Scotland Gas Networks plc (SGN) concerning its hydrogen heating trial in Fife, Scotland. The complaint alleges that SGN has made misleading environmental claims about hydrogen heating in its websites and promotional materials directed at local residents and prospective trial participants. Those claims present hydrogen as “clean burning”, “zero-carbon”, and capable of providing “green energy” to millions of homes. The complaint argues that these claims omit critical information and conflate different types of hydrogen with very different environmental impacts. This risks misleading consumers about the emissions, efficiency, and feasibility of hydrogen as a solution for home heating. This is particularly important given that the UK Government has yet to make its final decision on the role of hydrogen in home heating, expected in 2026. Misleading green claims risk shaping consumer choices and policy decisions based on inaccurate information. If the gas grid were repurposed for hydrogen, up to 85% of UK households could be affected, making truthful, evidence-based information essential to protecting consumers and the public interest.

 Topics mentioned most in this case  
Beta

See how often topics get mentioned in this case and view specific passages of text highlighted in each document. Accuracy is not 100%. Learn more

Group
Topics
Risk
Renewable energy
Fossil fuel
Greenhouse gas
Economic sector
Finance