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Solar panel cost in Wealden (BN24)

See realistic solar installation costs, savings and payback for BN24 (Wealden) 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
11.6 years
After this, it's pure profit
Upfront Cost
£12,207
What you pay to get started
Annual Benefit
£1,051
What you save every year
Profit Over 25 Years
£14,074
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: Bigger systems don’t shorten payback—cost and savings rise together per kW.
  • 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

Costs: Battery prices are typically £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 23.53p/kWh with a 54.74p/day standing charge. Your postcode’s south-facing sunshine yield is 1137 kWh/kW — 108 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 1137 kWh per year on a south-facing roof. We value self-used electricity at 23.5p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
23.5p/kWh
Standing charge
54.7p/day
Sunshine yield (south)
1137 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: £876, Upfront: £10,173, Break-even: 11.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2274 kWh 909 kWh 1364 kWh £214 £136 £350 £4,069 11.6 yrs £2,939
3 kW 3410 kWh 1364 kWh 2046 kWh £321 £205 £526 £6,104 11.6 yrs £4,409
4 kW 4547 kWh 1819 kWh 2728 kWh £428 £273 £701 £8,138 11.6 yrs £5,878
5 kW 5684 kWh 2274 kWh 3410 kWh £535 £341 £876 £10,173 11.6 yrs £7,348
6 kW 6821 kWh 2728 kWh 4093 kWh £642 £409 £1,051 £12,207 11.6 yrs £8,818
7 kW 7958 kWh 3183 kWh 4775 kWh £749 £477 £1,226 £14,242 11.6 yrs £10,287
8 kW 9095 kWh 3638 kWh 5457 kWh £856 £546 £1,402 £16,276 11.6 yrs £11,757

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 2,035, battery £/kWh = 700.

3 kWh battery 5 kW example → Annual benefit: £1,030, Upfront: £12,273, 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 2274 kWh 1364 kWh 909 kWh £321 £91 £412 £6,169 15.0 yrs £2,070
3 kW 3410 kWh 2046 kWh 1364 kWh £481 £136 £618 £8,204 13.3 yrs £4,155
4 kW 4547 kWh 2728 kWh 1819 kWh £642 £182 £824 £10,238 12.4 yrs £6,239
5 kW 5684 kWh 3410 kWh 2274 kWh £802 £227 £1,030 £12,273 11.9 yrs £8,324
6 kW 6821 kWh 4093 kWh 2728 kWh £963 £273 £1,236 £14,307 11.6 yrs £10,409
7 kW 7958 kWh 4775 kWh 3183 kWh £1,123 £318 £1,442 £16,342 11.3 yrs £12,494
8 kW 9095 kWh 5457 kWh 3638 kWh £1,284 £364 £1,648 £18,376 11.2 yrs £14,579

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 2,035, battery £/kWh = 700.

5 kWh battery 5 kW example → Annual benefit: £1,107, Upfront: £13,673, Break-even: 12.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2274 kWh 1592 kWh 682 kWh £374 £68 £443 £7,569 17.1 yrs £1,285
3 kW 3410 kWh 2387 kWh 1023 kWh £562 £102 £664 £9,604 14.5 yrs £3,677
4 kW 4547 kWh 3183 kWh 1364 kWh £749 £136 £885 £11,638 13.1 yrs £6,070
5 kW 5684 kWh 3979 kWh 1705 kWh £936 £171 £1,107 £13,673 12.4 yrs £8,462
6 kW 6821 kWh 4775 kWh 2046 kWh £1,123 £205 £1,328 £15,707 11.8 yrs £10,855
7 kW 7958 kWh 5570 kWh 2387 kWh £1,311 £239 £1,549 £17,742 11.5 yrs £13,247
8 kW 9095 kWh 6366 kWh 2728 kWh £1,498 £273 £1,771 £19,776 11.2 yrs £15,640

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 2,035, battery £/kWh = 700.

7.5 kWh battery 5 kW example → Annual benefit: £1,130, Upfront: £15,423, 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 2274 kWh 1660 kWh 614 kWh £391 £61 £452 £9,319 20.6 yrs £-280
3 kW 3410 kWh 2490 kWh 921 kWh £586 £92 £678 £11,354 16.7 yrs £2,204
4 kW 4547 kWh 3320 kWh 1228 kWh £781 £123 £904 £13,388 14.8 yrs £4,689
5 kW 5684 kWh 4149 kWh 1535 kWh £976 £153 £1,130 £15,423 13.7 yrs £7,174
6 kW 6821 kWh 4979 kWh 1842 kWh £1,172 £184 £1,356 £17,457 12.9 yrs £9,659
7 kW 7958 kWh 5809 kWh 2149 kWh £1,367 £215 £1,582 £19,492 12.3 yrs £12,143
8 kW 9095 kWh 6639 kWh 2456 kWh £1,562 £246 £1,808 £21,526 11.9 yrs £14,628

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 2,035, battery £/kWh = 700.

10 kWh battery 5 kW example → Annual benefit: £1,145, Upfront: £17,173, Break-even: 15.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2274 kWh 1705 kWh 568 kWh £401 £57 £458 £11,069 24.2 yrs £-1,907
3 kW 3410 kWh 2558 kWh 853 kWh £602 £85 £687 £13,104 19.1 yrs £639
4 kW 4547 kWh 3410 kWh 1137 kWh £802 £114 £916 £15,138 16.5 yrs £3,185
5 kW 5684 kWh 4263 kWh 1421 kWh £1,003 £142 £1,145 £17,173 15.0 yrs £5,732
6 kW 6821 kWh 5116 kWh 1705 kWh £1,204 £171 £1,374 £19,207 14.0 yrs £8,278
7 kW 7958 kWh 5968 kWh 1989 kWh £1,404 £199 £1,603 £21,242 13.2 yrs £10,824
8 kW 9095 kWh 6821 kWh 2274 kWh £1,605 £227 £1,832 £23,276 12.7 yrs £13,370

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 2,035, battery £/kWh = 700.

13.5 kWh battery 5 kW example → Annual benefit: £1,161, Upfront: £19,623, Break-even: 16.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2274 kWh 1751 kWh 523 kWh £412 £52 £464 £13,519 29.1 yrs £-4,234
3 kW 3410 kWh 2626 kWh 784 kWh £618 £78 £696 £15,554 22.3 yrs £-1,627
4 kW 4547 kWh 3501 kWh 1046 kWh £824 £105 £928 £17,588 18.9 yrs £981
5 kW 5684 kWh 4377 kWh 1307 kWh £1,030 £131 £1,161 £19,623 16.9 yrs £3,589
6 kW 6821 kWh 5252 kWh 1569 kWh £1,236 £157 £1,393 £21,657 15.6 yrs £6,197
7 kW 7958 kWh 6127 kWh 1830 kWh £1,442 £183 £1,625 £23,692 14.6 yrs £8,805
8 kW 9095 kWh 7003 kWh 2092 kWh £1,648 £209 £1,857 £25,726 13.9 yrs £11,413

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 2,035, 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.

Insights for BN24

Figures below are tailored to BN24 — click through for full league tables.

Big-Roof Britain Rank #531 of 2182
5.6 kWp (UK avg 5.1 kWp)
~12 panels (≈430 W)
Solar Payback Index Rank #4 of 2997
10.3 years (UK avg 12.6 years)
~£1,181 /yr • £12,207 upfront
Standing-Charge Drag Rank #27 of 2997
15.0% (UK avg 24.6%) drag on savings
£178 fixed • ~£1,181 /yr value
Aspect Penalty View ranking →
East −20.4% West −22.9%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in BN24

Monthly generation per kilowatt of solar panels

kWh 42 Jan 58 Feb 96 Mar 129 Apr 138 May 142 Jun 143 Jul 126 Aug 105 Sep 72 Oct 48 Nov 38 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 48.6% 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 46 kWh per month; the average month produces around 95 kWh. So a typical 4 kW home system would generate roughly 184 kWh in winter, or 379 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
23.53p/kWh
Daily Fixed Charge
54.74p/day
Local Sunshine
1137kWh/kW
A 1 kW system generates ~1137 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: 62% • Flats: 12% • Bungalows: 24% Based on 3,044 properties

Coverage

Wealden (98%)|Rother (2%)

Areas Covered

Herstmonceux & Pevensey Levels, Pevensey Bay, Stone Cross, Polegate Central, Bexhill St Marks

Data Sources & Assumptions

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

Electricity rates: Ofgem price cap, Q1 2026

Installation costs: MCS certified installer data, March 2025

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

BN23 (Eastbourne)
≈1.8 km away
Local sunshine: ~1,126 kWh/kWp · -1% vs BN24
BN22 (Eastbourne)
≈4.3 km away
Local sunshine: ~1,138 kWh/kWp · +0% vs BN24
BN26 (Wealden)
≈5.6 km away
Local sunshine: ~1,155 kWh/kWp · +2% vs BN24
BN21 (Eastbourne)
≈5.8 km away
Local sunshine: ~1,135 kWh/kWp · -0% vs BN24
BN20 (Eastbourne)
≈6.8 km away
Local sunshine: ~1,141 kWh/kWp · +0% vs BN24
BN27 (Wealden)
≈7.3 km away
Local sunshine: ~1,134 kWh/kWp · -0% vs BN24

Similar sunshine across the UK

PO19 (Chichester)
~1,138 kWh/kWp · +0% vs BN24
PO30 (Isle of Wight)
~1,133 kWh/kWp · -0% vs BN24
PO10 (Havant)
~1,133 kWh/kWp · -0% vs BN24