About Us: Who Runs Solar Panel Cost Calculator and What We Do
Solar Panel Cost Calculator is run by Solar Panel Cost Calculator Ltd, a private limited company registered in England and Wales (company number 16928471). We estimate what solar panels and a battery would cost and save on your roof, show the working, and tell you when solar is a poor fit. We earn from survey requests we pass to Leads 2 Trade. This page covers who we are, what we are not and how that payment works, all in support of one tool: the calculator this site is built around.
| Fact | Detail |
|---|---|
| Site name | Solar Panel Cost Calculator |
| Publisher (legal name) | Solar Panel Cost Calculator Ltd |
| Company number | 16928471 |
| Registered office | 20 Wenlock Road, London, N1 7GU, United Kingdom |
| Contact email | hello@solarpanelcostcalculator.uk |
| Information Commissioner's Office (ICO) registration number | ZA894721 |
| Site launched | 14 November 2026 |
| Written by | Solar Panel Cost Calculator Editorial Team |
| Technical review | A page shows a review line only after the named technical reviewer has read and approved that page. |
| How we are paid | We earn from survey requests we pass to Leads 2 Trade. |
| What we are not | An installer, MCS, a lender, a government body or an energy supplier. |
What We Do: Solar Cost, Savings and Payback Estimates for Your Home
We give you an estimate of what solar would cost and save on your home, before anyone calls you. Getting from your answers to a quote takes four steps, and each step has one actor.
- You answer eight questions about your home.
- We give an estimate: the installed cost, the yearly saving, the payback years and a verdict of Good fit, Borderline or Poor fit.
- Leads 2 Trade arranges a survey, but only when you own the home, the verdict is Good fit or Borderline and you ask for one; read what happens after you ask for a survey.
- Installers give you the quote.
The estimate comes from us, the survey from Leads 2 Trade and the quote from an installer. On a Poor fit result we do not offer a survey; we show what would change the answer, and you can run it again.
The survey request form on this site is not open yet, so we refer nobody today.
What We Are Not
We are a publisher of estimates, not a company that sells or fits solar. The table lists seven things people sometimes take us for, and what each one means for you.
| We are not | What that means for you |
|---|---|
| An installer | We never fit panels or batteries. Installers give the quote. |
| MCS or MCS-certified | Registration with the Microgeneration Certification Scheme (MCS) belongs to each installer. We hold no certification. |
| A lender or credit broker | We do not arrange credit or recommend a lender. |
| The government or a government scheme | We do not run, assess or award any grant or scheme. |
| An energy supplier | We do not sell electricity or export tariffs. |
| An installer vetting service | We do not inspect installers. MCS registration is the installer's own certification. |
| Endorsed by anyone | No organisation endorses this site. |
That leaves one thing we are: a source of figures for your own decision. Those figures are estimates, not quotes or advice.
Who Runs Solar Panel Cost Calculator
Solar Panel Cost Calculator Ltd publishes this site under the name Solar Panel Cost Calculator, and the Solar Panel Cost Calculator Editorial Team writes it.
The Company Behind the Site
Solar Panel Cost Calculator Ltd is the legal publisher of Solar Panel Cost Calculator. Its registered details are:
- Legal name
- Solar Panel Cost Calculator Ltd
- Type and place of registration
- a private limited company registered in England and Wales
- Company number
- 16928471
- Registered office
- 20 Wenlock Road, London, N1 7GU, United Kingdom
- Contact email
- hello@solarpanelcostcalculator.uk
- ICO registration number
- ZA894721
Who Writes and Who Checks the Figures
Pages carry the byline of the Solar Panel Cost Calculator Editorial Team, and a page says it was reviewed only after the named technical reviewer has checked it.
The team is an editorial group, not one named writer. We draft pages with AI assistance. Our editorial policy names the technical reviewer and sets out what a review covers. A page carries a review line only after the reviewer has read and approved that version of it.
How We Are Paid, and Why It Does Not Change Our Figures
We are paid by Leads 2 Trade Limited when a homeowner we refer asks for a survey. You are never charged. It does not change our figures.
How that payment works is set out under how we make money.
The payment cannot move a figure, because the calculator has no input for who pays us. It works out cost, saving and payback from your answers, from published data and from our own stated assumptions, and the result is the same whether or not you ask for a survey. The calculator can also say no. A Poor fit result carries no survey offer, and a tenant gets an estimate to share with a landlord, not a referral.
You will get phone calls.
Where Our Figures Come From
Each kind of data in the table below names its source. The table shows the five kinds of data behind an estimate, the source of each and how often the source changes.
| Data | Source | How often the source changes |
|---|---|---|
| Installed cost per kW | Department for Energy Security and Net Zero (DESNZ), "Solar PV cost data", mean for home retrofit installations, per kWp of panels fitted (total installed capacity), published 28 May 2026 and covering April 2025 to March 2026 | Once a year, when DESNZ publishes |
| Electricity unit rate | Ofgem price cap: 26.32p per kWh for 1 October to 31 December 2026 | Every quarter, when Ofgem changes the cap |
| Generation | The form of the MCS method: system size in kWp x a yield figure for your postcode area, roof direction and pitch (our calculation from PVGIS) x a shade factor. Until you type a postcode, one stand-in figure is used. | No set schedule |
| Export rate | 13p per kWh, our calculation from Ofgem figures for the Smart Export Guarantee (SEG), or your own rate | Once a year, in Ofgem's SEG annual report |
| VAT on solar panels and batteries | HM Revenue and Customs (HMRC), VAT Notice 708/6: 0% until 31 March 2027, 5% from 1 April 2027 | When HMRC changes the notice |
The formulas that turn this data into an estimate are on the page about how our calculator works, and the datasets are listed under sources and data dates. The calculator is version 1.0.
How to Check Our Work or Report an Error
If you think a figure is wrong, tell us. Email editorial@solarpanelcostcalculator.uk with the page address and the figure. Our editorial policy sets out each step.
How to Contact Us
Email hello@solarpanelcostcalculator.uk for anything about this site. We reply within 2 working days. A request about your personal data goes to privacy@solarpanelcostcalculator.uk. A dispute about an installer's work goes to that installer first; we cannot resolve it.