// SOLAR GENERATION
Every panel earns from export.
Your battery already runs your home on cheap off-peak power. So every unit your panels make is sold to the grid for income, not used in the house. A bigger array simply earns more.
1
Find your bundle
More panels sit higher, so more generation and more income.
Read generation along the bottom, or yearly export income on the right. The bars fade to show the typical spread in solar yield according to roof inclination and orientation.
THE BUNDLES
8 panels
Terraced
System size3.72 kWp
Export / yr£474
Breakeven7.1 yrs
25-yr total£22,637
From£3,899
Most popular
12 panels
Semi-detached
System size5.58 kWp
Export / yr£711
Breakeven5.8 yrs
25-yr total£33,955
From£4,699
16 panels
Detached
System size7.44 kWp
Export / yr£949
Breakeven5.2 yrs
25-yr total£45,274
From£5,499
Bigger arrays earn more.Because your battery already runs the home on cheap off-peak power, every unit your panels generate is exported for income rather than used in the house. More panels means more generation, so a larger array simply earns more each year, for a fixed cost per panel.
Scaffolding is priced separately.Safe access for installation requires scaffolding. Where it's not already present it typically costs £650–£1,650 (depending on the size of array and number of aspects), and is added to your Estimate only where required. The bundle prices above exclude it.
Export income is illustrative.Your actual income varies with your roof, location and the SEG rate you're on. Every figure here is an Estimate. Your tailored design and price are confirmed at survey and formal Quotation. Savings are illustrative. Actual savings will depend on your chosen tariff and system usage.
2
How solar earns
Every unit you generate is worth something, used or exported.
1
Every unit exports
Because the battery powers your home, all your solar is sold to the grid under the Smart Export Guarantee.
2
Bigger array, more income
Each extra panel adds about £59 a year of export income for a fixed cost, so larger bundles pay back faster.
3
Sized to your roof
Your final array is sized to your roof's area, orientation and pitch, all confirmed at survey.
How we work it out.Present panel output rating is typically 0.45–0.50 kWp (we use 0.465 kWp in these calculations) and generates roughly 850 kWh per kWp a year (no shading factor applied, which is confirmed at survey). Because your battery runs the home, all generation is exported at the Smart Export Guarantee rate (assumed 15p/kWh), so annual income = generation × 15p, about £59 per panel each year. Breakeven is the price divided by the annual income, with that income assumed to grow at 5% a year as energy prices rise. The 25-year total applies that same 5% annual inflation to the export income. We do not factor in panel output degradation, which is small in practice. Bundle prices exclude scaffolding. This is an Estimate. Your design, associated array output, and price are confirmed and presented after survey in a formal Quotation.