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Solar panel cost in Adur (BN43)

See realistic solar installation costs, savings and payback for BN43 (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
£924
What you save every year
Profit Over 25 Years
£14,967
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 1109 kWh/kW — 80 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 1109 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)
1109 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: £924, 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 2218 kWh 887 kWh 1331 kWh £237 £133 £370 £3,256 8.8 yrs £4,138
3 kW 3327 kWh 1331 kWh 1996 kWh £355 £200 £555 £4,883 8.8 yrs £6,207
4 kW 4436 kWh 1774 kWh 2662 kWh £473 £266 £739 £6,511 8.8 yrs £8,277
5 kW 5545 kWh 2218 kWh 3327 kWh £592 £333 £924 £8,139 8.8 yrs £10,346
6 kW 6654 kWh 2662 kWh 3992 kWh £710 £399 £1,109 £9,767 8.8 yrs £12,415
7 kW 7763 kWh 3105 kWh 4658 kWh £828 £466 £1,294 £11,394 8.8 yrs £14,484
8 kW 8872 kWh 3549 kWh 5323 kWh £946 £532 £1,479 £13,022 8.8 yrs £16,553

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: £1,109, 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 2218 kWh 1331 kWh 887 kWh £355 £89 £444 £5,356 12.1 yrs £3,517
3 kW 3327 kWh 1996 kWh 1331 kWh £532 £133 £665 £6,983 10.5 yrs £6,326
4 kW 4436 kWh 2662 kWh 1774 kWh £710 £177 £887 £8,611 9.7 yrs £9,134
5 kW 5545 kWh 3327 kWh 2218 kWh £887 £222 £1,109 £10,239 9.2 yrs £11,943
6 kW 6654 kWh 3992 kWh 2662 kWh £1,065 £266 £1,331 £11,867 8.9 yrs £14,752
7 kW 7763 kWh 4658 kWh 3105 kWh £1,242 £311 £1,553 £13,494 8.7 yrs £17,560
8 kW 8872 kWh 5323 kWh 3549 kWh £1,420 £355 £1,775 £15,122 8.5 yrs £20,369

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: £1,202, 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 2218 kWh 1553 kWh 665 kWh £414 £67 £481 £6,756 14.1 yrs £2,857
3 kW 3327 kWh 2329 kWh 998 kWh £621 £100 £721 £8,383 11.6 yrs £6,035
4 kW 4436 kWh 3105 kWh 1331 kWh £828 £133 £961 £10,011 10.4 yrs £9,213
5 kW 5545 kWh 3881 kWh 1663 kWh £1,035 £166 £1,202 £11,639 9.7 yrs £12,392
6 kW 6654 kWh 4658 kWh 1996 kWh £1,242 £200 £1,442 £13,267 9.2 yrs £15,570
7 kW 7763 kWh 5434 kWh 2329 kWh £1,449 £233 £1,682 £14,894 8.9 yrs £18,748
8 kW 8872 kWh 6210 kWh 2662 kWh £1,656 £266 £1,922 £16,522 8.6 yrs £21,927

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: £1,229, 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 2218 kWh 1619 kWh 599 kWh £432 £60 £492 £8,506 17.3 yrs £1,329
3 kW 3327 kWh 2429 kWh 898 kWh £648 £90 £738 £10,133 13.7 yrs £4,618
4 kW 4436 kWh 3238 kWh 1198 kWh £864 £120 £983 £11,761 12.0 yrs £7,907
5 kW 5545 kWh 4048 kWh 1497 kWh £1,080 £150 £1,229 £13,389 10.9 yrs £11,196
6 kW 6654 kWh 4857 kWh 1797 kWh £1,295 £180 £1,475 £15,017 10.2 yrs £14,486
7 kW 7763 kWh 5667 kWh 2096 kWh £1,511 £210 £1,721 £16,644 9.7 yrs £17,775
8 kW 8872 kWh 6476 kWh 2395 kWh £1,727 £240 £1,967 £18,272 9.3 yrs £21,064

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: £1,248, 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 2218 kWh 1663 kWh 554 kWh £444 £55 £499 £10,256 20.5 yrs £-274
3 kW 3327 kWh 2495 kWh 832 kWh £665 £83 £749 £11,883 15.9 yrs £3,090
4 kW 4436 kWh 3327 kWh 1109 kWh £887 £111 £998 £13,511 13.5 yrs £6,453
5 kW 5545 kWh 4159 kWh 1386 kWh £1,109 £139 £1,248 £15,139 12.1 yrs £9,816
6 kW 6654 kWh 4990 kWh 1663 kWh £1,331 £166 £1,497 £16,767 11.2 yrs £13,179
7 kW 7763 kWh 5822 kWh 1941 kWh £1,553 £194 £1,747 £18,394 10.5 yrs £16,542
8 kW 8872 kWh 6654 kWh 2218 kWh £1,775 £222 £1,996 £20,022 10.0 yrs £19,906

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: £1,266, 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 2218 kWh 1708 kWh 510 kWh £455 £51 £506 £12,706 25.1 yrs £-2,576
3 kW 3327 kWh 2562 kWh 765 kWh £683 £77 £760 £14,333 18.9 yrs £861
4 kW 4436 kWh 3416 kWh 1020 kWh £911 £102 £1,013 £15,961 15.8 yrs £4,299
5 kW 5545 kWh 4270 kWh 1275 kWh £1,139 £128 £1,266 £17,589 13.9 yrs £7,736
6 kW 6654 kWh 5123 kWh 1530 kWh £1,366 £153 £1,519 £19,217 12.6 yrs £11,173
7 kW 7763 kWh 5977 kWh 1785 kWh £1,594 £179 £1,773 £20,844 11.8 yrs £14,610
8 kW 8872 kWh 6831 kWh 2041 kWh £1,822 £204 £2,026 £22,472 11.1 yrs £18,047

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 BN43

Figures below are tailored to BN43 — click through for full league tables.

Big-Roof Britain Rank #1389 of 2182
4.8 kWp (UK avg 5.1 kWp)
~10 panels (≈430 W)
Solar Payback Index Rank #40 of 2996
8.8 years (UK avg 10.8 years)
~£924 /yr • £8,139 upfront
Standing-Charge Drag Rank #791 of 2996
21.5% (UK avg 26.6%) drag on savings
£199 fixed • ~£924 /yr value
Aspect Penalty View ranking →
East −21.2% West −22.6%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in BN43

Monthly generation per kilowatt of solar panels

kWh 41 Jan 57 Feb 95 Mar 126 Apr 133 May 138 Jun 139 Jul 121 Aug 103 Sep 71 Oct 48 Nov 38 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 49.1% 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 92 kWh. So a typical 4 kW home system would generate roughly 181 kWh in winter, or 370 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
26.67p/kWh
Daily Fixed Charge
54.45p/day
Local Sunshine
1109kWh/kW
A 1 kW system generates ~1109 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: 52% • Flats: 34% • Bungalows: 11% Based on 6,433 properties

Coverage

Adur (100%)

Areas Covered

St Mary's, St Nicolas, Marine, Buckingham, Southlands, Southwick Green, Hillside, Mash Barn + 3 more

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

BN4 (Adur)
≈1.8 km away
Local sunshine: ~1,110 kWh/kWp · +0% vs BN43
BN42 (Adur)
≈2.7 km away
Local sunshine: ~1,110 kWh/kWp · +0% vs BN43
BN15 (Adur)
≈3.6 km away
Local sunshine: ~1,112 kWh/kWp · +0% vs BN43
BN99 (Adur)
≈4.2 km away
Local sunshine: ~1,119 kWh/kWp · +1% vs BN43
BN95 (Adur)
≈4.2 km away
Local sunshine: ~1,112 kWh/kWp · +0% vs BN43
BN41 (Brighton and Hove)
≈4.2 km away
Local sunshine: ~1,110 kWh/kWp · +0% vs BN43

Similar sunshine across the UK

DT5 (Dorset)
~1,109 kWh/kWp · +0% vs BN43
DT4 (Dorset)
~1,110 kWh/kWp · +0% vs BN43
PO37 (Isle of Wight)
~1,108 kWh/kWp · -0% vs BN43