Question to the Department for Energy Security & Net Zero:

To ask the Secretary of State for Energy Security and Net Zero, what assessment her Department has made of the number of operational solar photovoltaic systems in England and Wales that comply with applicable electrical safety requirements and have the necessary grid connection approval but do not hold Microgeneration Certification Scheme (MCS) certification.

The Department has not made an assessment of the number of operational solar photovoltaic systems in England and Wales that comply with applicable electrical safety requirements and have the necessary grid connection approval but do not hold MCS certification.

MCS is a voluntary certification scheme, and its data does not capture all small-scale renewable installations. The Department publishes statistics on solar photovoltaic deployment by capacity and accreditation, while the Microgeneration Installations Database records MCS-certified installations. MCS provides free access to its certification statistics through its website.