Publishing standards
Editorial policy
Sources
We prioritise government departments, devolved administrations, Ofgem, MCS, Energy Saving Trust and manufacturer documents. Commercial blogs may provide leads but are not used to establish a figure or rule.
Funding updates
Funding pages should be rechecked at least monthly and whenever an administrator announces a material rule, amount, date or availability change.
Last updated dates
A page date changes only when its published content genuinely changes. The date is not evidence of professional review or endorsement.
Corrections
Email webmaster@wattsworthit.co.uk with the page address, the disputed statement and a supporting primary source.
Last updated 27 September 2026.