Search results for “solar panels”

TOPCon has overtaken PERC as the dominant solar panel technology in 2025–2026. Here is what that actually means for efficiency, degradation, and whether the premium is justified for a UK install.

Which home EV chargers can use surplus solar generation to charge your car for free — and which ones just claim to.

Working backwards from your electricity bill and roof to the right system size — without the vague installer estimates.

Installing solar panels can improve your EPC rating by 6–10 SAP points — enough to unlock green mortgage discounts, cashback rewards, and 0% additional borrowing from major UK lenders. This guide explains which products are available, who qualifies, and how to make solar and your mortgage work together.

For most UK households with a south-facing roof and reasonable daytime use, solar panels are worth it — payback typically falls in the 8–12 year range, with ongoing savings for 15–20 years beyond. But north-facing roofs, significant shading, and households out all day with no battery make the case much harder to justify. This guide sets out who benefits, who should think carefully, and what the real numbers look like.

The honest answer to how much solar output drops in winter, what drives the drop, and whether it changes the payback calculation.

The honest carbon maths behind home solar — how fast panels repay the emissions used to make them, what a kWh actually displaces, where a battery fits, and the limits of what solar can fix.

A genuinely educational walk-through of how solar panels turn daylight into usable electricity for a UK home: the photovoltaic effect in plain English, how cells become panels become an array, why you need an inverter, where the power goes first, and what really happens at night, on cloudy days and through a British winter.

Solar EV charging works by redirecting surplus generation into the car instead of exporting it to the grid at low SEG rates. It needs a CT clamp in the consumer unit and a charger with genuine solar divert — not just smart scheduling. This guide covers how it works, which chargers qualify, the economics, how to size your system, and the battery vs divert trade-off.

On a flat roof you choose which way your solar panels face. Here is why east-west often beats south on total output, how panel count drives the decision, and the tilt, mounting, planning and money that go with it — written from having made the call on my own flat roof.

Some UK homeowners can spread the cost of solar with 0% finance — through installer payment plans, Nationwide's green mortgage top-up, or government-backed routes for eligible households. But the 0% window is usually time-limited, and the fine print on what happens next matters. This guide explains every real route, what to compare, and the five checks to run before signing.

With a typical 4kWp solar system, most UK households reduce their electricity costs by £200–£600 a year — more with a battery. This guide breaks down the numbers by system size, explains self-consumption, SEG export income, and how location affects your saving.