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Solar panel cost in Crawley (RH10)

See realistic solar installation costs, savings and payback for RH10 (Crawley) 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
11.7 years
After this, it's pure profit
Upfront Cost
£10,173
What you pay to get started
Annual Benefit
£870
What you save every year
Profit Over 25 Years
£11,573
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 28.27p/kWh with a 48.66p/day standing charge. Your postcode’s south-facing sunshine yield is 1005 kWh/kW — 24 below 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 1005 kWh per year on a south-facing roof. We value self-used electricity at 28.3p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
28.3p/kWh
Standing charge
48.7p/day
Sunshine yield (south)
1005 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: £870, Upfront: £10,173, Break-even: 11.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2010 kWh 804 kWh 1206 kWh £227 £121 £348 £4,069 11.7 yrs £2,889
3 kW 3015 kWh 1206 kWh 1809 kWh £341 £181 £522 £6,104 11.7 yrs £4,334
4 kW 4020 kWh 1608 kWh 2412 kWh £455 £241 £696 £8,138 11.7 yrs £5,779
5 kW 5025 kWh 2010 kWh 3015 kWh £568 £302 £870 £10,173 11.7 yrs £7,224
6 kW 6031 kWh 2412 kWh 3618 kWh £682 £362 £1,044 £12,207 11.7 yrs £8,668
7 kW 7036 kWh 2814 kWh 4221 kWh £796 £422 £1,218 £14,242 11.7 yrs £10,113
8 kW 8041 kWh 3216 kWh 4824 kWh £909 £482 £1,392 £16,276 11.7 yrs £11,558

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: £1,053, Upfront: £12,273, Break-even: 11.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2010 kWh 1206 kWh 804 kWh £341 £80 £421 £6,169 14.6 yrs £2,258
3 kW 3015 kWh 1809 kWh 1206 kWh £511 £121 £632 £8,204 13.0 yrs £4,438
4 kW 4020 kWh 2412 kWh 1608 kWh £682 £161 £843 £10,238 12.1 yrs £6,617
5 kW 5025 kWh 3015 kWh 2010 kWh £852 £201 £1,053 £12,273 11.7 yrs £8,796
6 kW 6031 kWh 3618 kWh 2412 kWh £1,023 £241 £1,264 £14,307 11.3 yrs £10,975
7 kW 7036 kWh 4221 kWh 2814 kWh £1,193 £281 £1,475 £16,342 11.1 yrs £13,155
8 kW 8041 kWh 4824 kWh 3216 kWh £1,364 £322 £1,685 £18,376 10.9 yrs £15,334

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: £1,145, Upfront: £13,673, 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 2010 kWh 1407 kWh 603 kWh £398 £60 £458 £7,569 16.5 yrs £1,593
3 kW 3015 kWh 2111 kWh 905 kWh £597 £90 £687 £9,604 14.0 yrs £4,139
4 kW 4020 kWh 2814 kWh 1206 kWh £796 £121 £916 £11,638 12.7 yrs £6,686
5 kW 5025 kWh 3518 kWh 1508 kWh £994 £151 £1,145 £13,673 11.9 yrs £9,232
6 kW 6031 kWh 4221 kWh 1809 kWh £1,193 £181 £1,374 £15,707 11.4 yrs £11,779
7 kW 7036 kWh 4925 kWh 2111 kWh £1,392 £211 £1,603 £17,742 11.1 yrs £14,325
8 kW 8041 kWh 5629 kWh 2412 kWh £1,591 £241 £1,832 £19,776 10.8 yrs £16,872

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: £1,173, Upfront: £15,423, Break-even: 13.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2010 kWh 1467 kWh 543 kWh £415 £54 £469 £9,319 19.9 yrs £63
3 kW 3015 kWh 2201 kWh 814 kWh £622 £81 £704 £11,354 16.1 yrs £2,720
4 kW 4020 kWh 2935 kWh 1085 kWh £830 £109 £938 £13,388 14.3 yrs £5,377
5 kW 5025 kWh 3669 kWh 1357 kWh £1,037 £136 £1,173 £15,423 13.2 yrs £8,033
6 kW 6031 kWh 4402 kWh 1628 kWh £1,245 £163 £1,407 £17,457 12.4 yrs £10,690
7 kW 7036 kWh 5136 kWh 1900 kWh £1,452 £190 £1,642 £19,492 11.9 yrs £13,347
8 kW 8041 kWh 5870 kWh 2171 kWh £1,659 £217 £1,876 £21,526 11.5 yrs £16,003

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: £1,191, Upfront: £17,173, Break-even: 14.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2010 kWh 1508 kWh 503 kWh £426 £50 £476 £11,069 23.2 yrs £-1,540
3 kW 3015 kWh 2261 kWh 754 kWh £639 £75 £715 £13,104 18.3 yrs £1,190
4 kW 4020 kWh 3015 kWh 1005 kWh £852 £101 £953 £15,138 15.9 yrs £3,920
5 kW 5025 kWh 3769 kWh 1256 kWh £1,066 £126 £1,191 £17,173 14.4 yrs £6,651
6 kW 6031 kWh 4523 kWh 1508 kWh £1,279 £151 £1,429 £19,207 13.4 yrs £9,381
7 kW 7036 kWh 5277 kWh 1759 kWh £1,492 £176 £1,668 £21,242 12.7 yrs £12,111
8 kW 8041 kWh 6031 kWh 2010 kWh £1,705 £201 £1,906 £23,276 12.2 yrs £14,841

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: £1,210, Upfront: £19,623, Break-even: 16.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2010 kWh 1548 kWh 462 kWh £438 £46 £484 £13,519 27.9 yrs £-3,843
3 kW 3015 kWh 2322 kWh 694 kWh £656 £69 £726 £15,554 21.4 yrs £-1,039
4 kW 4020 kWh 3096 kWh 925 kWh £875 £92 £968 £17,588 18.2 yrs £1,764
5 kW 5025 kWh 3870 kWh 1156 kWh £1,094 £116 £1,210 £19,623 16.2 yrs £4,568
6 kW 6031 kWh 4644 kWh 1387 kWh £1,313 £139 £1,451 £21,657 14.9 yrs £7,371
7 kW 7036 kWh 5417 kWh 1618 kWh £1,532 £162 £1,693 £23,692 14.0 yrs £10,175
8 kW 8041 kWh 6191 kWh 1849 kWh £1,750 £185 £1,935 £25,726 13.3 yrs £12,979

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 RH10

Figures below are tailored to RH10 — click through for full league tables.

Big-Roof Britain Rank #1609 of 2182
4.6 kWp (UK avg 5.1 kWp)
~10 panels (≈430 W)
Solar Payback Index Rank #552 of 2997
11.7 years (UK avg 12.6 years)
~£870 /yr • £10,173 upfront
Standing-Charge Drag Rank #972 of 2997
20.4% (UK avg 24.6%) drag on savings
£178 fixed • ~£870 /yr value
Aspect Penalty View ranking →
East −20.3% West −19.7%
Typical output loss versus a south-facing roof (lower is better)

Your Area at a Glance

Your Electricity Rate
28.27p/kWh
Daily Fixed Charge
48.66p/day
Local Sunshine
1005kWh/kW
A 1 kW system generates ~1005 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: 59% • Flats: 34% • Bungalows: 4% Based on 18,251 properties

Coverage

Crawley (87%)|Mid Sussex (12%)|Tandridge (1%)

Areas Covered

Three Bridges, Langley Green & Tushmore, Northgate & West Green, Pound Hill South & Worth, Pound Hill North & Forge Wood, Furnace Green, Crawley Down, Maidenbower + 5 more

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

RH11 (Crawley)
≈1.9 km away
Local sunshine: ~1,008 kWh/kWp · +0% vs RH10
RH77 (Crawley)
≈2.4 km away
Local sunshine: ~1,007 kWh/kWp · +0% vs RH10
RH6 (Reigate and Banstead)
≈6.1 km away
Local sunshine: ~1,005 kWh/kWp · +0% vs RH10
RH12 (Horsham)
≈11.5 km away
Local sunshine: ~1,006 kWh/kWp · +0% vs RH10
RH19 (Mid Sussex)
≈11.6 km away
Local sunshine: ~1,007 kWh/kWp · +0% vs RH10
RH17 (Mid Sussex)
≈12.1 km away
Local sunshine: ~1,033 kWh/kWp · +3% vs RH10

Similar sunshine across the UK

PE7 (Fenland)
~1,005 kWh/kWp · +0% vs RH10
E7 (Newham)
~1,005 kWh/kWp · -0% vs RH10
E12 (Newham)
~1,005 kWh/kWp · -0% vs RH10