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Solar panel cost in Wealden (TN6)

See realistic solar installation costs, savings and payback for TN6 (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
9.5 years
After this, it's pure profit
Upfront Cost
£9,767
What you pay to get started
Annual Benefit
£1,026
What you save every year
Profit Over 25 Years
£15,890
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 1026 kWh/kW — 3 below 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 1026 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)
1026 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: £855, Upfront: £8,139, 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 2052 kWh 821 kWh 1231 kWh £219 £123 £342 £3,256 9.5 yrs £3,586
3 kW 3079 kWh 1231 kWh 1847 kWh £328 £185 £513 £4,883 9.5 yrs £5,379
4 kW 4105 kWh 1642 kWh 2463 kWh £438 £246 £684 £6,511 9.5 yrs £7,172
5 kW 5131 kWh 2052 kWh 3079 kWh £547 £308 £855 £8,139 9.5 yrs £8,966
6 kW 6157 kWh 2463 kWh 3694 kWh £657 £369 £1,026 £9,767 9.5 yrs £10,759
7 kW 7183 kWh 2873 kWh 4310 kWh £766 £431 £1,197 £11,394 9.5 yrs £12,552
8 kW 8209 kWh 3284 kWh 4926 kWh £876 £493 £1,368 £13,022 9.5 yrs £14,345

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: £1,026, Upfront: £10,239, Break-even: 10.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2052 kWh 1231 kWh 821 kWh £328 £82 £411 £5,356 13.0 yrs £2,855
3 kW 3079 kWh 1847 kWh 1231 kWh £493 £123 £616 £6,983 11.3 yrs £5,332
4 kW 4105 kWh 2463 kWh 1642 kWh £657 £164 £821 £8,611 10.5 yrs £7,809
5 kW 5131 kWh 3079 kWh 2052 kWh £821 £205 £1,026 £10,239 10.0 yrs £10,287
6 kW 6157 kWh 3694 kWh 2463 kWh £985 £246 £1,232 £11,867 9.6 yrs £12,764
7 kW 7183 kWh 4310 kWh 2873 kWh £1,149 £287 £1,437 £13,494 9.4 yrs £15,242
8 kW 8209 kWh 4926 kWh 3284 kWh £1,314 £328 £1,642 £15,122 9.2 yrs £17,719

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: £1,112, Upfront: £11,639, Break-even: 10.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2052 kWh 1437 kWh 616 kWh £383 £62 £445 £6,756 15.2 yrs £2,139
3 kW 3079 kWh 2155 kWh 924 kWh £575 £92 £667 £8,383 12.6 yrs £4,958
4 kW 4105 kWh 2873 kWh 1231 kWh £766 £123 £889 £10,011 11.3 yrs £7,778
5 kW 5131 kWh 3592 kWh 1539 kWh £958 £154 £1,112 £11,639 10.5 yrs £10,597
6 kW 6157 kWh 4310 kWh 1847 kWh £1,149 £185 £1,334 £13,267 9.9 yrs £13,417
7 kW 7183 kWh 5028 kWh 2155 kWh £1,341 £215 £1,557 £14,894 9.6 yrs £16,236
8 kW 8209 kWh 5747 kWh 2463 kWh £1,533 £246 £1,779 £16,522 9.3 yrs £19,056

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: £1,137, Upfront: £13,389, Break-even: 11.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2052 kWh 1498 kWh 554 kWh £400 £55 £455 £8,506 18.7 yrs £594
3 kW 3079 kWh 2247 kWh 831 kWh £599 £83 £682 £10,133 14.8 yrs £3,516
4 kW 4105 kWh 2996 kWh 1108 kWh £799 £111 £910 £11,761 12.9 yrs £6,439
5 kW 5131 kWh 3746 kWh 1385 kWh £999 £139 £1,137 £13,389 11.8 yrs £9,361
6 kW 6157 kWh 4495 kWh 1662 kWh £1,199 £166 £1,365 £15,017 11.0 yrs £12,283
7 kW 7183 kWh 5244 kWh 1939 kWh £1,399 £194 £1,592 £16,644 10.5 yrs £15,205
8 kW 8209 kWh 5993 kWh 2217 kWh £1,598 £222 £1,820 £18,272 10.0 yrs £18,127

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: £1,155, Upfront: £15,139, Break-even: 13.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2052 kWh 1539 kWh 513 kWh £411 £51 £462 £10,256 22.2 yrs £-1,019
3 kW 3079 kWh 2309 kWh 770 kWh £616 £77 £693 £11,883 17.2 yrs £1,972
4 kW 4105 kWh 3079 kWh 1026 kWh £821 £103 £924 £13,511 14.6 yrs £4,962
5 kW 5131 kWh 3848 kWh 1283 kWh £1,026 £128 £1,155 £15,139 13.1 yrs £7,953
6 kW 6157 kWh 4618 kWh 1539 kWh £1,232 £154 £1,385 £16,767 12.1 yrs £10,943
7 kW 7183 kWh 5387 kWh 1796 kWh £1,437 £180 £1,616 £18,394 11.4 yrs £13,934
8 kW 8209 kWh 6157 kWh 2052 kWh £1,642 £205 £1,847 £20,022 10.8 yrs £16,925

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: £1,172, Upfront: £17,589, 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 2052 kWh 1580 kWh 472 kWh £421 £47 £469 £12,706 27.1 yrs £-3,332
3 kW 3079 kWh 2370 kWh 708 kWh £632 £71 £703 £14,333 20.4 yrs £-273
4 kW 4105 kWh 3161 kWh 944 kWh £843 £94 £937 £15,961 17.0 yrs £2,786
5 kW 5131 kWh 3951 kWh 1180 kWh £1,054 £118 £1,172 £17,589 15.0 yrs £5,845
6 kW 6157 kWh 4741 kWh 1416 kWh £1,264 £142 £1,406 £19,217 13.7 yrs £8,904
7 kW 7183 kWh 5531 kWh 1652 kWh £1,475 £165 £1,640 £20,844 12.7 yrs £11,963
8 kW 8209 kWh 6321 kWh 1888 kWh £1,686 £189 £1,875 £22,472 12.0 yrs £15,022

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 Wealden

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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Understand DNO, G98 and G99 export limits

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Insights for TN6

Figures below are tailored to TN6 — click through for full league tables.

Big-Roof Britain Rank #395 of 2182
5.7 kWp (UK avg 5.1 kWp)
~12 panels (≈430 W)
Solar Payback Index Rank #333 of 2996
9.5 years (UK avg 10.8 years)
~£1,026 /yr • £9,767 upfront
Standing-Charge Drag Rank #383 of 2996
19.4% (UK avg 26.6%) drag on savings
£199 fixed • ~£1,026 /yr value
Aspect Penalty View ranking →
East −20.2% West −20.2%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in TN6

Monthly generation per kilowatt of solar panels

kWh 39 Jan 51 Feb 87 Mar 116 Apr 122 May 127 Jun 126 Jul 113 Aug 96 Sep 67 Oct 46 Nov 34 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 48.6% of an average month (Dec–Feb)

Best / worst month: Jun / Dec

These figures show output per kilowatt (kW) of panels installed. In winter, a 1 kW system here produces about 42 kWh per month; the average month produces around 86 kWh. So a typical 4 kW home system would generate roughly 166 kWh in winter, or 342 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
26.67p/kWh
Daily Fixed Charge
54.45p/day
Local Sunshine
1026kWh/kW
A 1 kW system generates ~1026 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: 70% • Flats: 18% • Bungalows: 10% Based on 6,749 properties

Coverage

Wealden (100%)

Areas Covered

Crowborough Central, Crowborough North, Crowborough South East, Crowborough Jarvis Brook, Hadlow Down & Rotherfield, Crowborough St Johns, Crowborough South West, Hartfield + 4 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

TN7 (Wealden)
≈5.9 km away
Local sunshine: ~1,019 kWh/kWp · -1% vs TN6
TN20 (Wealden)
≈7.8 km away
Local sunshine: ~1,041 kWh/kWp · +1% vs TN6
TN3 (Tunbridge Wells)
≈9.3 km away
Local sunshine: ~1,023 kWh/kWp · -0% vs TN6
RH18 (Wealden)
≈10.2 km away
Local sunshine: ~1,019 kWh/kWp · -1% vs TN6
TN22 (Wealden)
≈10.3 km away
Local sunshine: ~1,055 kWh/kWp · +3% vs TN6
TN1 (Tunbridge Wells)
≈11.4 km away
Local sunshine: ~1,029 kWh/kWp · +0% vs TN6

Similar sunshine across the UK

EX7 (Teignbridge)
~1,027 kWh/kWp · +0% vs TN6
PL14 (Cornwall)
~1,026 kWh/kWp · -0% vs TN6
TR10 (Cornwall)
~1,027 kWh/kWp · +0% vs TN6