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A British home running on solar and storage
Home Energy  ·  2026  ·  Featured

How much could solaractually save your home?

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ArticlesHome Energy.

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Homeowner reviewing an energy plan
Home Energy · 2026

Do you still need the grid with solar + storage?

Where a TerraVault battery genuinely cuts your import - and the winter weeks a UK home still leans on the grid.

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UK home with rooftop solar at dusk
Home Energy · 2026

Is your roof right for solar? A five-minute check

Orientation, pitch and shading - the three things that decide your generation before an installer ever visits.

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Family in a solar-powered home
Home Energy · 2026

Getting the most from a partial-shade roof

Chimneys, dormers and next door's oak tree needn't cost you output - how SunCrown panels claw back shaded yield.

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Lewis engineer commissioning battery storage★ Featured
Technology · 2026

What battery storage actually changes at home

Storing the day's generation shifts more than your bill - it changes when you use power, how you ride out an outage, and how little you draw from the grid after dark.

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ArticlesCosts & Savings.

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A wall-mounted Lewis inverter on a home with rooftop solar
Costs & Savings · 2026

Reading your solar app: which numbers actually matter

Generation, self-consumption and export - the three figures that tell you whether your system is paying its way.

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Installer reviewing a maintenance schedule
Costs & Savings · 2026

What an AMC really covers - and why it pays back

Silver vs Platinum: panel cleans, priority response and the quiet cost of a system left unmaintained.

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Solar payback and savings planning
Costs & Savings · 2026

Payback, plainly: how long until solar pays for itself?

No jargon - how system size, usage and export shape a realistic payback window for a typical UK home.

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A British home at golden hour with rooftop solar
Solar + battery  ·  UK home

See how a British homecut its bills for good.

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%
Bill offset
71%
Self-produced energy

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Black rooftop solar panels
Guides · 2026

Standard vs Premium: which Lewis package fits?

SunCrown™ and a hybrid inverter, or SunCrown Black™ with extended warranties - how to choose without over-buying.

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Conformity documents and quality checks
Quality · 2026

CE, UKCA and what British-led quality really means

The marks on your kit aren't decoration - what they certify, and why documented conformity should be non-negotiable.

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Lewis-branded wall inverters
Technology · 2026

On-grid or hybrid: choosing your inverter

GridMax or PowerSync - matching the inverter to your roof, your battery and how you use power.

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High-efficiency solar panel against sky
Technology · 2026

Panel efficiency, explained: what "Up to 25.4%" buys you

More usable energy from the same roof area - how premium cell efficiency turns into real generation on a British roof.

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Solar panel cleaning and maintenance
Guides · 2026

Keeping panels at their best through a British winter

Self-cleaning coatings, seasonal dips and the handful of checks that keep output steady when the days are short.

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Wall-mounted TerraVault battery
Home Energy · 2026

Sizing your TerraVault: 5, 10 or 16 kWh?

Your evening usage, not the biggest box, decides the right storage - how to match capacity to how your home actually lives.

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