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Synopsis
These regulations will amend the Clean Heat Market Mechanism Regulations 2025. Low-carbon heat targets will increase from 1 April 2026.
The Microgeneration Certification Scheme will become the only recognised certification standard.
The definition of a ‘hybrid heating system’ will also be updated so that systems combining a heat pump and a fossil fuel appliance are not required to provide hot water where the building does not need it.
Summary
The Clean Heat Market Mechanism (Amendment) Regulations 2025 will amend the Clean Heat Market Mechanism Regulations 2025 on 1 April 2026.
This legislation will apply across the UK.
What will change?
The Microgeneration Certification Scheme will become the only recognised certification standard for the Clean Heat Market Mechanism.
The definition of a ‘hybrid heating system’ will be updated. This change means that a system incorporating both a heat pump and a fossil fuel appliance is not required to provide hot water, where the building does not need it.
The low-carbon heat target for scheme years beginning on or after 1 April 2026 is increased from 6% (as originally set) to 8% of relevant boiler sales:
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