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Solar panel cost in Adur (BN15)

See realistic solar installation costs, savings and payback for BN15 (Adur) in under a minute using official UK data. Start with the calculator, then get a no-obligation quote from an MCS-certified installer. You can also ask the SolarByPostcode assistant to sanity-check your roof, bills and plans.

Solar Calculator

Change the settings below to see how costs and savings work for your situation.

System Size

Roof Direction

Battery Storage

Export Value

Your Numbers

Break-even
8.8 years
After this, it's pure profit
Upfront Cost
£8,139
What you pay to get started
Annual Benefit
£927
What you save every year
Profit Over 25 Years
£15,030
After paying itself off, you're this much ahead

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How we calculate this

Solar generation: Based on typical south-facing roof at 35° angle. We account for weather, dirt, and system losses (14%).

How much you'll use directly:

  • Without battery: You'll use about 40% of what you generate. The rest gets sold back to the grid.
  • With 5 kWh battery: You'll use about 70% (battery stores extra for evening use).
  • With 10 kWh battery: You'll use about 75% (more storage means less exported).
  • Panel-only payback: The official cost per kW is lower above 4 kW, so a 5–6 kW system can pay back a little faster than a 3–4 kW system on otherwise identical assumptions.
  • Battery & payback: Batteries raise self-use and cut bills, but added hardware cost often lengthens break-even at typical UK rates.
  • When a battery can still make sense:
    • Evening-heavy usage patterns
    • Time-of-use tariffs / cheap night rates
    • Low export rate vs. high unit rate
    • Heat pump or EV charging synergy
    • Optional backup/resilience (system-dependent)
    • Lower evening-hour CO₂ vs. grid

Panel costs: Uses March 2026 TIC mean installation costs: £1,827/kW up to 4 kW and £1,628/kW above 4 kW.

Other costs: Battery prices are modelled at £700 per kWh. Export tariffs vary by supplier (usually 5–15p per kWh).

Grid connection: Systems up to about 3.7 kW typically need just a notification (G98). Larger systems may need permission (G99).

These are typical values based on average usage patterns. Your actual results will vary based on your roof, shading, and how you use electricity.

Your area in context

In South East, the current unit rate is 26.67p/kWh with a 54.45p/day standing charge. Your postcode’s south-facing sunshine yield is 1112 kWh/kW — 83 above the regional median (1029).

Read the full story

A typical roof here lands around 5.0 kW, with most eligible homes comfortably fitting within 3–6 kW. Each kilowatt of panels produces roughly 1112 kWh per year on a south-facing roof. We value self-used electricity at 26.7p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
26.7p/kWh
Standing charge
54.5p/day
Sunshine yield (south)
1112 kWh/kW
Export price (baseline)
10p/kWh

Browse the scenarios below. Each battery size has its own expand — open the one that matches your plan (or just explore). For each system size (2–8 kW) we show annual output, how much you use directly, what gets exported, annual benefit, upfront cost, break-even, and a 20-year net. Negative numbers are possible — that’s the honest trade-off when adding more battery than your usage profile justifies.

No battery 5 kW example → Annual benefit: £927, Upfront: £8,139, Break-even: 8.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2224 kWh 890 kWh 1334 kWh £237 £133 £371 £3,256 8.8 yrs £4,158
3 kW 3336 kWh 1334 kWh 2002 kWh £356 £200 £556 £4,883 8.8 yrs £6,238
4 kW 4448 kWh 1779 kWh 2669 kWh £475 £267 £741 £6,511 8.8 yrs £8,317
5 kW 5560 kWh 2224 kWh 3336 kWh £593 £334 £927 £8,139 8.8 yrs £10,396
6 kW 6672 kWh 2669 kWh 4003 kWh £712 £400 £1,112 £9,767 8.8 yrs £12,475
7 kW 7784 kWh 3114 kWh 4670 kWh £830 £467 £1,297 £11,394 8.8 yrs £14,554
8 kW 8896 kWh 3558 kWh 5338 kWh £949 £534 £1,483 £13,022 8.8 yrs £16,634

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,628, battery £/kWh = 700.

3 kWh battery 5 kW example → Annual benefit: £1,112, Upfront: £10,239, Break-even: 9.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2224 kWh 1334 kWh 890 kWh £356 £89 £445 £5,356 12.0 yrs £3,541
3 kW 3336 kWh 2002 kWh 1334 kWh £534 £133 £667 £6,983 10.5 yrs £6,362
4 kW 4448 kWh 2669 kWh 1779 kWh £712 £178 £890 £8,611 9.7 yrs £9,183
5 kW 5560 kWh 3336 kWh 2224 kWh £890 £222 £1,112 £10,239 9.2 yrs £12,003
6 kW 6672 kWh 4003 kWh 2669 kWh £1,068 £267 £1,335 £11,867 8.9 yrs £14,824
7 kW 7784 kWh 4670 kWh 3114 kWh £1,246 £311 £1,557 £13,494 8.7 yrs £17,645
8 kW 8896 kWh 5338 kWh 3558 kWh £1,424 £356 £1,779 £15,122 8.5 yrs £20,465

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,628, battery £/kWh = 700.

5 kWh battery 5 kW example → Annual benefit: £1,205, Upfront: £11,639, Break-even: 9.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2224 kWh 1557 kWh 667 kWh £415 £67 £482 £6,756 14.0 yrs £2,883
3 kW 3336 kWh 2335 kWh 1001 kWh £623 £100 £723 £8,383 11.6 yrs £6,074
4 kW 4448 kWh 3114 kWh 1334 kWh £830 £133 £964 £10,011 10.4 yrs £9,266
5 kW 5560 kWh 3892 kWh 1668 kWh £1,038 £167 £1,205 £11,639 9.7 yrs £12,457
6 kW 6672 kWh 4670 kWh 2002 kWh £1,246 £200 £1,446 £13,267 9.2 yrs £15,649
7 kW 7784 kWh 5449 kWh 2335 kWh £1,453 £234 £1,687 £14,894 8.8 yrs £18,840
8 kW 8896 kWh 6227 kWh 2669 kWh £1,661 £267 £1,928 £16,522 8.6 yrs £22,031

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,628, battery £/kWh = 700.

7.5 kWh battery 5 kW example → Annual benefit: £1,233, Upfront: £13,389, Break-even: 10.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2224 kWh 1624 kWh 600 kWh £433 £60 £493 £8,506 17.3 yrs £1,355
3 kW 3336 kWh 2435 kWh 901 kWh £649 £90 £740 £10,133 13.7 yrs £4,658
4 kW 4448 kWh 3247 kWh 1201 kWh £866 £120 £986 £11,761 11.9 yrs £7,961
5 kW 5560 kWh 4059 kWh 1501 kWh £1,082 £150 £1,233 £13,389 10.9 yrs £11,263
6 kW 6672 kWh 4871 kWh 1801 kWh £1,299 £180 £1,479 £15,017 10.2 yrs £14,566
7 kW 7784 kWh 5682 kWh 2102 kWh £1,515 £210 £1,726 £16,644 9.6 yrs £17,869
8 kW 8896 kWh 6494 kWh 2402 kWh £1,732 £240 £1,972 £18,272 9.3 yrs £21,171

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,628, battery £/kWh = 700.

10 kWh battery 5 kW example → Annual benefit: £1,251, Upfront: £15,139, Break-even: 12.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2224 kWh 1668 kWh 556 kWh £445 £56 £500 £10,256 20.5 yrs £-246
3 kW 3336 kWh 2502 kWh 834 kWh £667 £83 £751 £11,883 15.8 yrs £3,130
4 kW 4448 kWh 3336 kWh 1112 kWh £890 £111 £1,001 £13,511 13.5 yrs £6,507
5 kW 5560 kWh 4170 kWh 1390 kWh £1,112 £139 £1,251 £15,139 12.1 yrs £9,884
6 kW 6672 kWh 5004 kWh 1668 kWh £1,335 £167 £1,501 £16,767 11.2 yrs £13,261
7 kW 7784 kWh 5838 kWh 1946 kWh £1,557 £195 £1,752 £18,394 10.5 yrs £16,638
8 kW 8896 kWh 6672 kWh 2224 kWh £1,779 £222 £2,002 £20,022 10.0 yrs £20,014

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,628, battery £/kWh = 700.

13.5 kWh battery 5 kW example → Annual benefit: £1,270, Upfront: £17,589, Break-even: 13.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2224 kWh 1712 kWh 512 kWh £457 £51 £508 £12,706 25.0 yrs £-2,548
3 kW 3336 kWh 2569 kWh 767 kWh £685 £77 £762 £14,333 18.8 yrs £903
4 kW 4448 kWh 3425 kWh 1023 kWh £913 £102 £1,016 £15,961 15.7 yrs £4,354
5 kW 5560 kWh 4281 kWh 1279 kWh £1,142 £128 £1,270 £17,589 13.9 yrs £7,805
6 kW 6672 kWh 5137 kWh 1535 kWh £1,370 £153 £1,524 £19,217 12.6 yrs £11,256
7 kW 7784 kWh 5994 kWh 1790 kWh £1,599 £179 £1,778 £20,844 11.7 yrs £14,707
8 kW 8896 kWh 6850 kWh 2046 kWh £1,827 £205 £2,031 £22,472 11.1 yrs £18,158

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,628, battery £/kWh = 700.

Figures are illustrative and use the same method as the calculator above. For exact results, adjust your roof direction, tariff, and usage in the calculator.

Before you request quotes in Adur

Use the numbers above to sanity-check installer quotes. The main things to compare are system size, battery assumptions, payback claims, MCS certification, DNO paperwork and export assumptions.

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Check what MCS certification means

Understand DNO, G98 and G99 export limits

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Insights for BN15

Figures below are tailored to BN15 — click through for full league tables.

Big-Roof Britain Rank #818 of 2182
5.2 kWp (UK avg 5.1 kWp)
~11 panels (≈430 W)
Solar Payback Index Rank #35 of 2996
8.8 years (UK avg 10.8 years)
~£927 /yr • £8,139 upfront
Standing-Charge Drag Rank #789 of 2996
21.5% (UK avg 26.6%) drag on savings
£199 fixed • ~£927 /yr value
Aspect Penalty View ranking →
East −21.1% West −22.6%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in BN15

Monthly generation per kilowatt of solar panels

kWh 41 Jan 57 Feb 95 Mar 126 Apr 133 May 138 Jun 140 Jul 122 Aug 103 Sep 71 Oct 48 Nov 38 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 49.0% of an average month (Dec–Feb)

Best / worst month: Jul / Dec

These figures show output per kilowatt (kW) of panels installed. In winter, a 1 kW system here produces about 45 kWh per month; the average month produces around 93 kWh. So a typical 4 kW home system would generate roughly 181 kWh in winter, or 371 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
26.67p/kWh
Daily Fixed Charge
54.45p/day
Local Sunshine
1112kWh/kW
A 1 kW system generates ~1112 kWh per year. A typical home uses ~2,700 kWh per year.
Typical System Size
5.0kW
For houses & bungalows in this area

Local Property Data

Property Types

Houses: 45% • Flats: 27% • Bungalows: 25% Based on 7,135 properties

Coverage

Adur (100%)

Areas Covered

Mash Barn, Widewater, Churchill, Peverel, Manor, Cokeham, Selden, Marine

Data Sources & Assumptions

Solar yield: PVGIS (EU Joint Research Centre), January 2025 data

Electricity rates: Ofgem price cap, Q3 2026

Installation costs: DESNZ/MCS data, March 2026 (TIC)

Property data: EPC open data (Open Government Licence), aggregated

All estimates are typical values. Actual results vary based on your specific situation, roof characteristics, and usage patterns.

Compare nearby areas

Nearby in South East

BN99 (Adur)
≈0.6 km away
Local sunshine: ~1,119 kWh/kWp · +1% vs BN15
BN95 (Adur)
≈0.8 km away
Local sunshine: ~1,112 kWh/kWp · -0% vs BN15
BN43 (Adur)
≈3.6 km away
Local sunshine: ~1,109 kWh/kWp · -0% vs BN15
BN11 (Worthing)
≈3.7 km away
Local sunshine: ~1,119 kWh/kWp · +1% vs BN15
BN14 (Worthing)
≈3.7 km away
Local sunshine: ~1,119 kWh/kWp · +1% vs BN15
BN4 (Adur)
≈5.4 km away
Local sunshine: ~1,110 kWh/kWp · -0% vs BN15

Similar sunshine across the UK

PO21 (Arun)
~1,111 kWh/kWp · -0% vs BN15
PO39 (Isle of Wight)
~1,113 kWh/kWp · +0% vs BN15
PO35 (Isle of Wight)
~1,111 kWh/kWp · -0% vs BN15