Nitrous Oxide emissions associated with 100% hydrogen boilers: research

Research to measure the gas composition of flue gas from hydrogen boilers under normal, real world operating conditions, with a view to establishing what, if any, greenhouse gases are emitted during combustion.


This report is issued as part of the contract under which the work has been carried out for The Scottish Government Energy & Climate Change Directorate (“The Client”) by TUV SUD Limited trading as TÜV SÜD National Engineering Laboratory (also known as NEL).


1 This report may be published in full or in extract and the client has a free licence to copy, circulate and use the contents of this report in their development of relevant legislation.

2 TÜV SÜD National Engineering Laboratory services are provided subject to terms and conditions acknowledged by our commercial staff and the applicable scope stated in the ISO 9001 certification and/or ISO/IEC 17025 accreditation. Services which fall outside the applicable scope of ISO certification and/or accreditation will be stated in this report.


For further information about this report, please contact:

John Galbraith

TÜV SÜD National Engineering Laboratory

East Kilbride


G75 0QF


Tel: +44 (0) 7802 820 248


©TUV SUD Limited 2023



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