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Solar panel cost in Chichester (PO19)

See realistic solar installation costs, savings and payback for PO19 (Chichester) 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
8.6 years
After this, it's pure profit
Upfront Cost
£8,139
What you pay to get started
Annual Benefit
£942
What you save every year
Profit Over 25 Years
£15,420
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 Southern, the current unit rate is 26.42p/kWh with a 49.70p/day standing charge. Your postcode’s south-facing sunshine yield is 1138 kWh/kW — 136 above the regional median (1001).

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 1138 kWh per year on a south-facing roof. We value self-used electricity at 26.4p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
26.4p/kWh
Standing charge
49.7p/day
Sunshine yield (south)
1138 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: £942, Upfront: £8,139, Break-even: 8.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2275 kWh 910 kWh 1365 kWh £240 £137 £377 £3,256 8.6 yrs £4,283
3 kW 3413 kWh 1365 kWh 2048 kWh £361 £205 £565 £4,883 8.6 yrs £6,425
4 kW 4550 kWh 1820 kWh 2730 kWh £481 £273 £754 £6,511 8.6 yrs £8,567
5 kW 5688 kWh 2275 kWh 3413 kWh £601 £341 £942 £8,139 8.6 yrs £10,708
6 kW 6825 kWh 2730 kWh 4095 kWh £721 £410 £1,131 £9,767 8.6 yrs £12,850
7 kW 7963 kWh 3185 kWh 4778 kWh £842 £478 £1,319 £11,394 8.6 yrs £14,992
8 kW 9100 kWh 3640 kWh 5460 kWh £962 £546 £1,508 £13,022 8.6 yrs £17,133

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: £1,129, 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 2275 kWh 1365 kWh 910 kWh £361 £91 £452 £5,356 11.9 yrs £3,678
3 kW 3413 kWh 2048 kWh 1365 kWh £541 £137 £677 £6,983 10.3 yrs £6,566
4 kW 4550 kWh 2730 kWh 1820 kWh £721 £182 £903 £8,611 9.5 yrs £9,455
5 kW 5688 kWh 3413 kWh 2275 kWh £902 £228 £1,129 £10,239 9.1 yrs £12,344
6 kW 6825 kWh 4095 kWh 2730 kWh £1,082 £273 £1,355 £11,867 8.8 yrs £15,233
7 kW 7963 kWh 4778 kWh 3185 kWh £1,262 £319 £1,581 £13,494 8.5 yrs £18,122
8 kW 9100 kWh 5460 kWh 3640 kWh £1,443 £364 £1,807 £15,122 8.4 yrs £21,010

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: £1,223, 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 2275 kWh 1593 kWh 683 kWh £421 £68 £489 £6,756 13.8 yrs £3,025
3 kW 3413 kWh 2389 kWh 1024 kWh £631 £102 £734 £8,383 11.4 yrs £6,287
4 kW 4550 kWh 3185 kWh 1365 kWh £842 £137 £978 £10,011 10.2 yrs £9,550
5 kW 5688 kWh 3981 kWh 1706 kWh £1,052 £171 £1,223 £11,639 9.5 yrs £12,812
6 kW 6825 kWh 4778 kWh 2048 kWh £1,262 £205 £1,467 £13,267 9.0 yrs £16,074
7 kW 7963 kWh 5574 kWh 2389 kWh £1,473 £239 £1,712 £14,894 8.7 yrs £19,337
8 kW 9100 kWh 6370 kWh 2730 kWh £1,683 £273 £1,956 £16,522 8.4 yrs £22,599

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: £1,251, 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 2275 kWh 1661 kWh 614 kWh £439 £61 £500 £8,506 17.0 yrs £1,499
3 kW 3413 kWh 2491 kWh 921 kWh £658 £92 £750 £10,133 13.5 yrs £4,873
4 kW 4550 kWh 3322 kWh 1229 kWh £878 £123 £1,000 £11,761 11.8 yrs £8,248
5 kW 5688 kWh 4152 kWh 1536 kWh £1,097 £154 £1,251 £13,389 10.7 yrs £11,622
6 kW 6825 kWh 4983 kWh 1843 kWh £1,316 £184 £1,501 £15,017 10.0 yrs £14,997
7 kW 7963 kWh 5813 kWh 2150 kWh £1,536 £215 £1,751 £16,644 9.5 yrs £18,371
8 kW 9100 kWh 6643 kWh 2457 kWh £1,755 £246 £2,001 £18,272 9.1 yrs £21,746

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 2275 kWh 1706 kWh 569 kWh £451 £57 £508 £10,256 20.2 yrs £-102
3 kW 3413 kWh 2560 kWh 853 kWh £676 £85 £762 £11,883 15.6 yrs £3,348
4 kW 4550 kWh 3413 kWh 1138 kWh £902 £114 £1,015 £13,511 13.3 yrs £6,797
5 kW 5688 kWh 4266 kWh 1422 kWh £1,127 £142 £1,269 £15,139 11.9 yrs £10,246
6 kW 6825 kWh 5119 kWh 1706 kWh £1,352 £171 £1,523 £16,767 11.0 yrs £13,695
7 kW 7963 kWh 5972 kWh 1991 kWh £1,578 £199 £1,777 £18,394 10.4 yrs £17,144
8 kW 9100 kWh 6825 kWh 2275 kWh £1,803 £228 £2,031 £20,022 9.9 yrs £20,593

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 2275 kWh 1752 kWh 523 kWh £463 £52 £515 £12,706 24.7 yrs £-2,402
3 kW 3413 kWh 2628 kWh 785 kWh £694 £78 £773 £14,333 18.5 yrs £1,122
4 kW 4550 kWh 3504 kWh 1047 kWh £926 £105 £1,030 £15,961 15.5 yrs £4,646
5 kW 5688 kWh 4380 kWh 1308 kWh £1,157 £131 £1,288 £17,589 13.7 yrs £8,169
6 kW 6825 kWh 5256 kWh 1570 kWh £1,389 £157 £1,545 £19,217 12.4 yrs £11,693
7 kW 7963 kWh 6131 kWh 1831 kWh £1,620 £183 £1,803 £20,844 11.6 yrs £15,217
8 kW 9100 kWh 7007 kWh 2093 kWh £1,851 £209 £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 Chichester

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 PO19

Figures below are tailored to PO19 — click through for full league tables.

Big-Roof Britain Rank #1441 of 2182
4.7 kWp (UK avg 5.1 kWp)
~10 panels (≈430 W)
Solar Payback Index Rank #10 of 2996
8.6 years (UK avg 10.8 years)
~£943 /yr • £8,139 upfront
Standing-Charge Drag Rank #353 of 2996
19.2% (UK avg 26.6%) drag on savings
£181 fixed • ~£943 /yr value
Aspect Penalty View ranking →
East −21.4% West −22.7%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in PO19

Monthly generation per kilowatt of solar panels

kWh 43 Jan 60 Feb 98 Mar 129 Apr 137 May 140 Jun 141 Jul 122 Aug 105 Sep 73 Oct 51 Nov 39 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 50.0% 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 95 kWh. So a typical 4 kW home system would generate roughly 190 kWh in winter, or 379 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
26.42p/kWh
Daily Fixed Charge
49.70p/day
Local Sunshine
1138kWh/kW
A 1 kW system generates ~1138 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: 56% • Flats: 35% • Bungalows: 6% Based on 11,640 properties

Coverage

Chichester (100%)

Areas Covered

Chichester Central, Chichester South, Chichester East, Chichester North, Chichester West, Harbour Villages, North Mundham & Tangmere, Lavant + 1 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 Southern

PO20 (Chichester)
≈3.0 km away
Local sunshine: ~1,122 kWh/kWp · -1% vs PO19
PO18 (Chichester)
≈3.7 km away
Local sunshine: ~1,108 kWh/kWp · -3% vs PO19
PO21 (Arun)
≈8.6 km away
Local sunshine: ~1,111 kWh/kWp · -2% vs PO19
PO22 (Arun)
≈10.3 km away
Local sunshine: ~1,128 kWh/kWp · -1% vs PO19
PO10 (Havant)
≈11.0 km away
Local sunshine: ~1,133 kWh/kWp · -0% vs PO19
PO9 (Havant)
≈14.4 km away
Local sunshine: ~1,096 kWh/kWp · -4% vs PO19

Similar sunshine across the UK

BN22 (Eastbourne)
~1,138 kWh/kWp · +0% vs PO19
BN51 (Brighton and Hove)
~1,137 kWh/kWp · -0% vs PO19
BN9 (Lewes)
~1,138 kWh/kWp · +0% vs PO19