Changelog
Update Log
Every material change to product records, guidance and calculator assumptions is logged here.
Last updated:
January 2026 — Site launch
- Published the comparison catalogue, savings calculator and initial guide set.
- Established the compliance status framework: verified, not yet verified, requires further checking, and no longer available.
- Published calculator assumptions in full on the calculator page, including regional, orientation, shading and self-consumption factors.
- Seeded the catalogue with clearly badged demonstration records while verified product data is gathered.
How this log works
We log changes that could alter a reader's decision: a revised compliance status, a corrected specification, a change to a calculator assumption, or a factual correction to a guide. Typographical fixes and layout changes are not logged.
Reporting an error
If you find something wrong, tell us through the contact page. Substantive corrections appear here with the date and a description of what changed.