Independent solar numbers for your postcode using official UK data
Home Regions Guides Compare quotes Solar assistant
Insights
Big Roof Britain Solar Payback Index Standing Charge Drag Roof Direction Penalty Winter Solar Reality Seasonal Solar Output

Solar panel cost in Arun (BN16)

See realistic solar installation costs, savings and payback for BN16 (Arun) 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
8.7 years
After this, it's pure profit
Upfront Cost
£9,767
What you pay to get started
Annual Benefit
£1,128
What you save every year
Profit Over 25 Years
£18,435
After paying itself off, you're this much ahead

Ready to Get Started?

Get your free quote from Blue Ape Renewables. They'll connect you with MCS-certified installers in your area and handle all the paperwork.

Get Solar Quote →
4.8★ Trustpilot • Octopus Energy trusted partner • MCS certified • No obligation
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 1128 kWh/kW — 99 above the regional median (1029).

Read the full story

A typical roof here lands around 6.0 kW, with most eligible homes comfortably fitting within 3–6 kW. Each kilowatt of panels produces roughly 1128 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)
1128 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: £940, Upfront: £8,139, Break-even: 8.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2256 kWh 902 kWh 1354 kWh £241 £135 £376 £3,256 8.7 yrs £4,265
3 kW 3384 kWh 1354 kWh 2030 kWh £361 £203 £564 £4,883 8.7 yrs £6,397
4 kW 4512 kWh 1805 kWh 2707 kWh £481 £271 £752 £6,511 8.7 yrs £8,530
5 kW 5640 kWh 2256 kWh 3384 kWh £602 £338 £940 £8,139 8.7 yrs £10,662
6 kW 6768 kWh 2707 kWh 4061 kWh £722 £406 £1,128 £9,767 8.7 yrs £12,795
7 kW 7896 kWh 3158 kWh 4737 kWh £842 £474 £1,316 £11,394 8.7 yrs £14,927
8 kW 9024 kWh 3610 kWh 5414 kWh £963 £541 £1,504 £13,022 8.7 yrs £17,060

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: £1,128, Upfront: £10,239, Break-even: 9.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2256 kWh 1354 kWh 902 kWh £361 £90 £451 £5,356 11.9 yrs £3,669
3 kW 3384 kWh 2030 kWh 1354 kWh £541 £135 £677 £6,983 10.3 yrs £6,554
4 kW 4512 kWh 2707 kWh 1805 kWh £722 £180 £902 £8,611 9.5 yrs £9,438
5 kW 5640 kWh 3384 kWh 2256 kWh £902 £226 £1,128 £10,239 9.1 yrs £12,323
6 kW 6768 kWh 4061 kWh 2707 kWh £1,083 £271 £1,354 £11,867 8.8 yrs £15,207
7 kW 7896 kWh 4737 kWh 3158 kWh £1,263 £316 £1,579 £13,494 8.5 yrs £18,092
8 kW 9024 kWh 5414 kWh 3610 kWh £1,444 £361 £1,805 £15,122 8.4 yrs £20,977

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: £1,222, Upfront: £11,639, Break-even: 9.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2256 kWh 1579 kWh 677 kWh £421 £68 £489 £6,756 13.8 yrs £3,021
3 kW 3384 kWh 2369 kWh 1015 kWh £632 £102 £733 £8,383 11.4 yrs £6,282
4 kW 4512 kWh 3158 kWh 1354 kWh £842 £135 £978 £10,011 10.2 yrs £9,543
5 kW 5640 kWh 3948 kWh 1692 kWh £1,053 £169 £1,222 £11,639 9.5 yrs £12,803
6 kW 6768 kWh 4737 kWh 2030 kWh £1,263 £203 £1,467 £13,267 9.0 yrs £16,064
7 kW 7896 kWh 5527 kWh 2369 kWh £1,474 £237 £1,711 £14,894 8.7 yrs £19,324
8 kW 9024 kWh 6317 kWh 2707 kWh £1,685 £271 £1,955 £16,522 8.4 yrs £22,585

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: £1,250, Upfront: £13,389, Break-even: 10.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2256 kWh 1647 kWh 609 kWh £439 £61 £500 £8,506 17.0 yrs £1,497
3 kW 3384 kWh 2470 kWh 914 kWh £659 £91 £750 £10,133 13.5 yrs £4,870
4 kW 4512 kWh 3294 kWh 1218 kWh £878 £122 £1,000 £11,761 11.8 yrs £8,244
5 kW 5640 kWh 4117 kWh 1523 kWh £1,098 £152 £1,250 £13,389 10.7 yrs £11,617
6 kW 6768 kWh 4941 kWh 1827 kWh £1,318 £183 £1,500 £15,017 10.0 yrs £14,991
7 kW 7896 kWh 5764 kWh 2132 kWh £1,537 £213 £1,750 £16,644 9.5 yrs £18,364
8 kW 9024 kWh 6587 kWh 2436 kWh £1,757 £244 £2,000 £18,272 9.1 yrs £21,738

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: £1,269, Upfront: £15,139, Break-even: 11.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2256 kWh 1692 kWh 564 kWh £451 £56 £508 £10,256 20.2 yrs £-103
3 kW 3384 kWh 2538 kWh 846 kWh £677 £85 £761 £11,883 15.6 yrs £3,346
4 kW 4512 kWh 3384 kWh 1128 kWh £902 £113 £1,015 £13,511 13.3 yrs £6,795
5 kW 5640 kWh 4230 kWh 1410 kWh £1,128 £141 £1,269 £15,139 11.9 yrs £10,243
6 kW 6768 kWh 5076 kWh 1692 kWh £1,354 £169 £1,523 £16,767 11.0 yrs £13,692
7 kW 7896 kWh 5922 kWh 1974 kWh £1,579 £197 £1,777 £18,394 10.4 yrs £17,141
8 kW 9024 kWh 6768 kWh 2256 kWh £1,805 £226 £2,031 £20,022 9.9 yrs £20,589

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: £1,288, Upfront: £17,589, Break-even: 13.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2256 kWh 1737 kWh 519 kWh £463 £52 £515 £12,706 24.7 yrs £-2,402
3 kW 3384 kWh 2606 kWh 778 kWh £695 £78 £773 £14,333 18.5 yrs £1,122
4 kW 4512 kWh 3474 kWh 1038 kWh £927 £104 £1,030 £15,961 15.5 yrs £4,646
5 kW 5640 kWh 4343 kWh 1297 kWh £1,158 £130 £1,288 £17,589 13.7 yrs £8,169
6 kW 6768 kWh 5211 kWh 1557 kWh £1,390 £156 £1,545 £19,217 12.4 yrs £11,693
7 kW 7896 kWh 6080 kWh 1816 kWh £1,621 £182 £1,803 £20,844 11.6 yrs £15,217
8 kW 9024 kWh 6948 kWh 2075 kWh £1,853 £208 £2,061 £22,472 10.9 yrs £18,741

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 Arun

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.

Compare solar quotes before you sign

Check what MCS certification means

Understand DNO, G98 and G99 export limits

New quote check

Want a quote sanity check for BN16?

Share the first part of your postcode and a few basics. We’ll help you check whether system size, battery, export and paperwork assumptions look sensible before you commit to installer conversations.

This is a practical sanity-check request, not an instant quote promise. The Blue Ape quote route above remains available if you already want installer introductions.

Request a quote sanity check →

Insights for BN16

Figures below are tailored to BN16 — click through for full league tables.

Big-Roof Britain Rank #538 of 2182
5.5 kWp (UK avg 5.1 kWp)
~12 panels (≈430 W)
Solar Payback Index Rank #18 of 2996
8.7 years (UK avg 10.8 years)
~£1,128 /yr • £9,767 upfront
Standing-Charge Drag Rank #177 of 2996
17.6% (UK avg 26.6%) drag on savings
£199 fixed • ~£1,128 /yr value
Aspect Penalty View ranking →
East −21.2% West −22.5%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in BN16

Monthly generation per kilowatt of solar panels

kWh 43 Jan 59 Feb 96 Mar 128 Apr 136 May 140 Jun 141 Jul 123 Aug 104 Sep 72 Oct 49 Nov 39 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 49.7% 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 47 kWh per month; the average month produces around 94 kWh. So a typical 4 kW home system would generate roughly 187 kWh in winter, or 376 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
26.67p/kWh
Daily Fixed Charge
54.45p/day
Local Sunshine
1128kWh/kW
A 1 kW system generates ~1128 kWh per year. A typical home uses ~2,700 kWh per year.
Typical System Size
6.0kW
For houses & bungalows in this area

Local Property Data

Property Types

Houses: 57% • Flats: 20% • Bungalows: 20% Based on 8,876 properties

Coverage

Arun (100%)

Areas Covered

Rustington West, East Preston, Angmering & Findon, Rustington East, River, Beach, Arundel & Walberton, Brookfield

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

BN17 (Arun)
≈2.5 km away
Local sunshine: ~1,126 kWh/kWp · -0% vs BN16
BN12 (Worthing)
≈5.6 km away
Local sunshine: ~1,123 kWh/kWp · -0% vs BN16
BN13 (Worthing)
≈6.9 km away
Local sunshine: ~1,119 kWh/kWp · -1% vs BN16
BN14 (Worthing)
≈9.0 km away
Local sunshine: ~1,119 kWh/kWp · -1% vs BN16
BN11 (Worthing)
≈9.3 km away
Local sunshine: ~1,119 kWh/kWp · -1% vs BN16
BN99 (Adur)
≈12.2 km away
Local sunshine: ~1,119 kWh/kWp · -1% vs BN16

Similar sunshine across the UK

PO22 (Arun)
~1,128 kWh/kWp · +0% vs BN16
PO38 (Isle of Wight)
~1,125 kWh/kWp · -0% vs BN16
TQ7 (South Hams)
~1,123 kWh/kWp · -0% vs BN16