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Working through UK home energy questions in public: what pays back, what does not, and where the numbers come from.
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What solar panels costWhat a domestic solar system costs, what sits inside the quote, and why two quotes for the same roof can differ by thousands.4 articles
Payback: is it worth it?How long a system takes to pay for itself, how to work it out from your own bill, and the cases where the honest answer is no.1 article
Home battery storageWhat storage costs per usable kilowatt hour, how to size one to your evening use, and when a battery earns its keep without solar.0 articles
Tariffs and exportWhat the Smart Export Guarantee pays, why export rates vary so widely, and why the tariff often matters more than the hardware.0 articles
Grants and fundingWhich solar funding schemes genuinely exist in each UK nation, who qualifies, and how to tell information from lead generation.0 articles
Buying and installingHow to read a solar quote, check an installer, handle planning rules, and get panels on a roof without overpaying.0 articles
How solar worksPanels, inverters and the rest of the kit, explained in terms of what each component does to the numbers on your bill.0 articles
EV charging at homeWhat charging at home really costs against public rapid charging, and what an electric car does to the case for solar and a battery.0 articles
Latest
antipatternWhy two solar quotes for the same roof differ by thousands
Panel count, inverter class and margin you cannot see. How to normalise two quotes so the remaining difference means something.
comparisonSolar panel cost by house size: 2, 3 and 4 bedrooms
Bedrooms are a poor proxy for both roof area and electricity use. Here is what to size on instead, and how to get there from your own bill.
referenceThe cost of fitting solar panels: what is in the quote and what is not
Scaffolding, network applications, bird proofing, isolators. The line items that turn up late, and the ones a good quote states up front.
calculationWhat a 4kW solar system actually costs in 2026
The most common domestic size, priced from government installation data, with a worked savings example and the reasons the price band is wide.
conceptWhat the solar ROI calculator actually models
A plain description of what goes into the payback figure, what it leaves out, and why a single headline number is never the whole story.