Solar Panel Guides
In-depth, honest explanations of how solar really works in the UK. No sales pitch, just the facts you need to make an informed decision.
How to check an MCS certificate: verifying your installer before and after installation (UK 2026)
Two-minute checks to verify an MCS installer before you sign, confirm your certificate after installation, and what to do if you never received one.
How much do solar panels save per month in the UK?
A realistic guide to monthly solar savings that explains the real drivers (self-use share, system size, install cost, tariffs, and roof yield), offers a simple estimation method you can follow in a minute, and shows worked examples with actual numbers.
Do solar panels increase house value in the UK? The boring truth (and when it backfires)
A UK-focused guide to whether solar adds value when you sell: what buyers actually care about, why valuations are often conservative, the paperwork bundle that prevents doubt, the common situations where panels reduce appeal, and a simple checklist to make your system resale-ready. Includes clear decision tables.
Cleaning bird droppings from solar panels in the UK: what to do, what to avoid, and when to pigeon-proof
A UK-focused guide to bird droppings on solar panels: when it actually affects output, the safest way to clean it, common mistakes that cause damage, and practical pigeon-proofing options (mesh guards, spikes, and roost prevention). Includes clear decision tables and a buyer checklist.
The most common solar regrets (and how to avoid them before you install)
A UK-focused guide to the solar mistakes homeowners most often regret: overpaying, oversizing, ignoring shading, misunderstanding SEG export, buying the wrong battery, and trusting optimistic assumptions. Includes a practical pre-install checklist.
Should you install solar now or wait? Cost curves vs lost generation
A UK-focused guide to the real install-now vs wait decision. Learn the break-even logic (price drops versus lost savings), the few scenarios where waiting is rational, and the traps that keep homeowners stuck.
Is solar still worth it without generous subsidies? A UK-specific answer
A UK-focused, numbers-first guide to whether solar still makes sense without big subsidies. Learn the modern value stack (self-use + SEG export), what assumptions matter, and when solar is genuinely not worth it.
Solar monitoring: how to spot underperformance early (without obsessing)
A UK-focused guide to solar monitoring that actually helps: what a healthy day curve looks like, how to recognise clipping and shading patterns, how to separate weather noise from real issues, and a simple weekly routine to catch problems early.
Solar payback periods in the UK: why averages mislead homeowners
A practical UK guide to solar payback that explains the real drivers (self-use, export rates, install cost, and yield), why “the UK average” is rarely relevant, and how to estimate a realistic payback range for your home.
Do solar panels need separate insurance? UK home insurance, warranties, and what's actually covered
Most UK homes don't need separate solar insurance if panels are declared to your home insurer. This guide covers what home insurance covers, how warranties work, and who to call first when something goes wrong.
How big should a home battery be? Avoiding the most common sizing mistake
Most batteries are sized backwards. This UK guide shows the one mistake that kills ROI, a practical sizing method based on evening demand and surplus, and when bigger capacity stops helping.
Self-consumption vs export in UK solar: how the Smart Export Guarantee changes the maths
Self-use saves at your import rate. Export pays at your Smart Export Guarantee rate. This guide explains the real money model, how to estimate your self-consumption, and what to do before buying more kWp or a battery.
Are solar batteries worth it in the UK? 2026 costs, savings, and who should skip them
Solar batteries are worth it if you have high evening demand and export 8+ kWh/day at midday (import-export gap £200+/year). Skip if you already use solar during the day or have low usage. Honest numbers and a simple checklist.
Winter solar generation in the UK: why batteries can’t fix seasonality
UK winter solar is lower for weeks, not hours. This guide explains the seasonality gap, what is realistic to cover in winter, and how to think about batteries, export, and payback.
Can solar cover 100% of a UK home’s electricity? The honest answer
Yes on an annual spreadsheet, rarely in real life without the grid. Learn what “100% solar” can mean, why winter is the constraint in the UK, and how to size sensibly without paying for surplus you cannot use.
Daytime vs evening electricity use: why self-use matters more than kWp
Most UK homes use electricity in the evening. Solar produces it at midday. This guide explains why that timing mismatch matters, how self-use drives savings, and what to do before you simply buy more panels.
Solar export limits and G98/G99 explained: what the 3.68 kW cap actually costs you
Your solar quote says 'export limited to 3.68 kW' or 'G99 required'. Sounds alarming — but for most homes the actual loss is only a handful of kWh a year. Here is exactly what the cap does and how to design around it.
How to compare solar quotes without getting misled (neutral, practical)
A UK-first checklist for comparing solar PV quotes properly: what to normalise, what questions to ask, how to spot hidden exclusions, and how to sanity-check kWh, export limits, and battery claims.
Inverters explained: lifespan, replacement cost, and what to expect
The UK homeowner’s guide to solar inverters: what they do, how long they last, the real failure modes, what a replacement typically involves, and how to avoid quote traps around inverter sizing, export limits, and ‘battery-ready’ claims.
MCS certificates for UK solar: what they look like, how to check them, and what they guarantee
See what MCS solar certificates look like, check them on the MCS portal, and understand what they guarantee for UK installations (and what they don't).
Solar panels in conservation areas: when you need permission and how to get yes (UK)
Conservation areas don't automatically block solar panels, but street-facing roofs often need approval. Most rear-roof installs are fine. Listed buildings are stricter. A practical checklist to avoid delays.
How much electricity does the average UK home actually use?
A practical breakdown of typical UK household electricity use in kWh per year — including what Ofgem's benchmark actually means — by home type and heating, so you can size solar realistically.
Flat roof solar systems explained: ballast, tilt, and UK wind loads
Flat roof solar is not “stick panels on a flat surface”. This UK-focused guide explains ballasted vs fixed systems, tilt and row spacing, wind uplift risk, roof condition checks, and what questions to ask before you buy.
Oversizing your solar system in the UK: when it pays off and when it does not
A practical UK guide to “too many panels”: when oversizing a solar PV system increases £ savings and future-proofs your home, and when extra kWp mostly feeds cheap export.
Shading and solar panels: when a single tree really does matter
Shading is one of the few solar variables that can genuinely dominate results. Learn why small obstructions can cause big losses, why winter shade matters most in the UK, how to spot it in your monitoring, and what mitigation actually helps.
Cloud cover vs solar output: what actually happens on overcast UK days
Cloudy doesn’t mean zero. Learn the difference between thin and thick overcast, why output often looks flatter (not broken), and how to benchmark your kWh using your postcode.
Should you install solar on a west or east-facing roof? When it works and when to skip it (UK 2026)
West-facing and east-facing solar panels produce 10-20% less than south-facing, but can save MORE if you're home mornings/evenings. Free postcode calculator shows if your roof works. Skip if you have high midday demand.
Does roof pitch matter for solar in the UK? Less than you think
Roof pitch affects solar output, but in the UK it’s usually a second-order detail. Here’s what pitch changes, what it doesn’t, and what matters more (with clear tables).
Solar panel degradation in the UK: expect 10–15% loss over 25 years (85–90% output remaining)
Modern UK solar panels typically degrade 0.3–0.8% per year, leaving 85–90% output after 25 years. The common '80% warranty' is a minimum floor, not what most systems actually deliver.
Temperature losses in UK solar panels: how heat quietly eats your kWh
Solar loves light but hates heat. Learn how panel temperature affects output, what is normal in the UK, and how to interpret hot-day performance.
Are solar panels worth it with a heat pump? UK costs, savings and the honest answer (2026)
Solar panels can save £400–£1,300/year when combined with a heat pump — but only under the right conditions. Here's when the combination makes strong financial sense, when it doesn't, and what the real UK numbers look like in 2026.
Solar system sizing in the UK: choosing the right kWp without wasting money
A practical way to size solar PV using your postcode, your usage, and the real trade-off between self-use and export.
Solar panel cost in the UK: what you actually pay and why quotes vary
Realistic UK price ranges for domestic solar PV and batteries, what drives quote differences, and how to sanity-check costs using your postcode.
Are your solar panels producing enough? How to check real output against what you should expect (UK, 2026)
A typical 4 kWp system in the UK produces 3,200–4,200 kWh/year — less than the brochure number, and that's normal. Here's how to tell whether your system is healthy or genuinely underperforming, with postcode-level benchmarks and a simple checklist.