Editorial Standards

Our approach

IWantSolar is built on a single principle: teach first, recommend second. Every article is written to give you genuine solar knowledge before any product or installer is mentioned. We do not write to rank keywords or pad out content with vague claims — we write to help you make a well-informed decision about a purchase that could cost you five figures.

We do not make misleading claims about savings, payback periods, or government grants. Where figures are estimates, we say so and explain the assumptions behind them.

Data sources

• Solar generation data — cross-referenced between PVGIS (the European Commission’s photovoltaic tool) and MCS guidance to ensure regional estimates reflect real UK irradiance conditions.
• Tariff and energy rates — verified against current supplier pricing and Ofgem price cap data. We do not use inflated unit rates to make savings figures look larger than they are.
• Product pricing — checked against real UK suppliers including Sunstore, Amazon, and direct manufacturer pricing. We flag when prices are approximate.
• Industry standards — technical claims are checked against MCS (Microgeneration Certification Scheme) documentation and Energy Saving Trust guidance.

Transparent sourcing

We maintain an internal reference library of UK solar regulations, standards, and official statistics — MCS installation standards, ENA G98/G99 connection rules, the Ofgem Smart Export Guarantee guidance, DESNZ deployment statistics, the GOV.UK Planning Portal, BS 7671 wiring regulations, and PAS 63100 battery safety. Every factual claim in our articles is traceable to a primary document in that library.

Articles that cover regulatory or technical topics display a Sources section at the foot listing the primary documents behind the claims on that page, with links where the source is publicly available. We are rolling this out across the site in batches — articles without a Sources section are still checked against the same library, but the inline references are still being added.

If you spot a claim on any article that you cannot trace to a source we have listed, email us and we will either add the citation or correct the claim.

Fact-checking process

• Every article is reviewed for technical accuracy against primary industry sources before publication. We do not rely on secondary summaries where primary sources are available.
• Pricing data (equipment, installation costs, tariff rates) is verified quarterly against live supplier pricing and Ofgem guidance.
• Regulatory information — grants, schemes, planning rules, permitted development rights — is checked against gov.uk, devolved government sources (Scottish Government, Welsh Government, NI Direct), and local authority guidance where relevant.

Keeping content current

Every article displays the date it was last reviewed. Solar regulations, grant schemes, and energy tariffs change regularly — when they do, affected articles are updated within one week of the change taking effect.

When an article is substantially updated (not just reformatted), the updated date is changed to reflect the date of that review.

Affiliate transparency

Some links on IWantSolar are affiliate links. We earn a small commission if you purchase through them, at no extra cost to you. This commission helps keep the site free to use.

Affiliate relationships do not influence which products we recommend, how we rank them, or what we write about them. We do not accept payment for editorial coverage, and we do not suppress negative information about products we link to.

Every page that contains affiliate links carries a disclosure notice at the top. See our Affiliate Disclosure for full details of our affiliate relationships.

Corrections

We get things wrong sometimes. If you spot a factual error — an incorrect price, an outdated regulation, a wrong technical specification — please let us know.

Email hello@iwantsolar.co.uk with the page URL and what you believe is incorrect. We correct factual errors within 48 hours of confirmation and note the correction at the foot of the affected article.