Last updated: June 2026
This page explains how Energy Review produces the content on this site — supplier reviews, "best of" comparison pages, guides, and calculators. We believe transparency about methodology is essential for readers to assess how much weight to place on our analysis.
Energy Review focuses on UK domestic energy. Our content falls into a few categories:
Where a comparison cites figures as "above average" or "below average", the average refers to the suppliers included in that specific comparison rather than the entire market.
Where our content draws on data, that data is collected from publicly available sources and refreshed periodically. Typical sources include:
We do not produce a single numeric score for each supplier. Instead, each review is structured into thematic sections that allow readers to assess performance on the dimensions that matter most to them — typically tariffs, customer reviews, app and online experience, and service and support.
"Best of" and ranking pages compare a defined set of suppliers or tariffs against a stated criterion. The shortlist, ranking order, and the criteria used are explained on each page. Inclusion in a shortlist reflects how a supplier or tariff performs against that criterion at the time of writing, not an endorsement.
Tariff data is sourced from supplier websites and represents publicly advertised rates at the time of collection. Where a supplier offers multiple tariffs, we typically focus on their standard variable tariff and any prominently advertised fixed-rate offers.
Rates are compared on a like-for-like basis where possible (e.g., electricity unit rate in p/kWh for a typical single-rate meter). Because tariffs vary by region, payment method, and meter type, all comparisons carry the caveat that your actual price may differ.
Our calculators produce estimates based on the inputs you provide and a small number of internal assumptions (such as default consumption figures or representative tariff data). They are intended as a guide only and should not be relied on as a personalised quotation. The underlying assumptions are documented on each calculator page where relevant.
Guides are explanatory articles aimed at helping readers understand the UK energy market. They are based on publicly available information from regulators, industry bodies, and suppliers, and are updated periodically as the market evolves.
Articles on this site are produced using an AI-assisted editorial process, with automated checks for factual consistency, balance, and potential inaccuracies, followed by human review and sign-off before publication. See our Editorial Policy for more detail.
We believe in being transparent about the limitations of our data and analysis:
If you believe any methodological choice is flawed or any data point is incorrect, we welcome feedback at privacy@energy-review.co.uk. See also our Editorial Policy for our corrections process.