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Solar panel cost in Isle of Wight (PO36)

See realistic solar installation costs, savings and payback for PO36 (Isle of Wight) 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
£9,767
What you pay to get started
Annual Benefit
£1,104
What you save every year
Profit Over 25 Years
£17,831
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 1110 kWh/kW — 109 above the regional median (1001).

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 1110 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)
1110 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: £920, 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 2221 kWh 888 kWh 1333 kWh £235 £133 £368 £3,256 8.8 yrs £4,104
3 kW 3331 kWh 1333 kWh 1999 kWh £352 £200 £552 £4,883 8.8 yrs £6,156
4 kW 4442 kWh 1777 kWh 2665 kWh £469 £267 £736 £6,511 8.8 yrs £8,208
5 kW 5552 kWh 2221 kWh 3331 kWh £587 £333 £920 £8,139 8.8 yrs £10,260
6 kW 6663 kWh 2665 kWh 3998 kWh £704 £400 £1,104 £9,767 8.8 yrs £12,312
7 kW 7773 kWh 3109 kWh 4664 kWh £821 £466 £1,288 £11,394 8.8 yrs £14,364
8 kW 8884 kWh 3554 kWh 5330 kWh £939 £533 £1,472 £13,022 8.8 yrs £16,416

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: £1,102, Upfront: £10,239, Break-even: 9.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2221 kWh 1333 kWh 888 kWh £352 £89 £441 £5,356 12.1 yrs £3,463
3 kW 3331 kWh 1999 kWh 1333 kWh £528 £133 £661 £6,983 10.6 yrs £6,244
4 kW 4442 kWh 2665 kWh 1777 kWh £704 £178 £882 £8,611 9.8 yrs £9,025
5 kW 5552 kWh 3331 kWh 2221 kWh £880 £222 £1,102 £10,239 9.3 yrs £11,807
6 kW 6663 kWh 3998 kWh 2665 kWh £1,056 £267 £1,323 £11,867 9.0 yrs £14,588
7 kW 7773 kWh 4664 kWh 3109 kWh £1,232 £311 £1,543 £13,494 8.7 yrs £17,369
8 kW 8884 kWh 5330 kWh 3554 kWh £1,408 £355 £1,764 £15,122 8.6 yrs £20,151

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: £1,193, Upfront: £11,639, Break-even: 9.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2221 kWh 1555 kWh 666 kWh £411 £67 £477 £6,756 14.2 yrs £2,792
3 kW 3331 kWh 2332 kWh 999 kWh £616 £100 £716 £8,383 11.7 yrs £5,938
4 kW 4442 kWh 3109 kWh 1333 kWh £821 £133 £955 £10,011 10.5 yrs £9,084
5 kW 5552 kWh 3887 kWh 1666 kWh £1,027 £167 £1,193 £11,639 9.8 yrs £12,230
6 kW 6663 kWh 4664 kWh 1999 kWh £1,232 £200 £1,432 £13,267 9.3 yrs £15,376
7 kW 7773 kWh 5441 kWh 2332 kWh £1,438 £233 £1,671 £14,894 8.9 yrs £18,522
8 kW 8884 kWh 6219 kWh 2665 kWh £1,643 £267 £1,910 £16,522 8.7 yrs £21,668

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: £1,221, Upfront: £13,389, Break-even: 11.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2221 kWh 1621 kWh 600 kWh £428 £60 £488 £8,506 17.4 yrs £1,261
3 kW 3331 kWh 2432 kWh 899 kWh £643 £90 £732 £10,133 13.8 yrs £4,516
4 kW 4442 kWh 3243 kWh 1199 kWh £857 £120 £977 £11,761 12.0 yrs £7,772
5 kW 5552 kWh 4053 kWh 1499 kWh £1,071 £150 £1,221 £13,389 11.0 yrs £11,027
6 kW 6663 kWh 4864 kWh 1799 kWh £1,285 £180 £1,465 £15,017 10.3 yrs £14,283
7 kW 7773 kWh 5675 kWh 2099 kWh £1,499 £210 £1,709 £16,644 9.7 yrs £17,538
8 kW 8884 kWh 6485 kWh 2399 kWh £1,713 £240 £1,953 £18,272 9.4 yrs £20,793

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: £1,239, Upfront: £15,139, Break-even: 12.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2221 kWh 1666 kWh 555 kWh £440 £56 £496 £10,256 20.7 yrs £-343
3 kW 3331 kWh 2499 kWh 833 kWh £660 £83 £743 £11,883 16.0 yrs £2,985
4 kW 4442 kWh 3331 kWh 1110 kWh £880 £111 £991 £13,511 13.6 yrs £6,313
5 kW 5552 kWh 4164 kWh 1388 kWh £1,100 £139 £1,239 £15,139 12.2 yrs £9,642
6 kW 6663 kWh 4997 kWh 1666 kWh £1,320 £167 £1,487 £16,767 11.3 yrs £12,970
7 kW 7773 kWh 5830 kWh 1943 kWh £1,540 £194 £1,735 £18,394 10.6 yrs £16,298
8 kW 8884 kWh 6663 kWh 2221 kWh £1,760 £222 £1,982 £20,022 10.1 yrs £19,627

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: £1,257, Upfront: £17,589, Break-even: 14.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2221 kWh 1710 kWh 511 kWh £452 £51 £503 £12,706 25.3 yrs £-2,647
3 kW 3331 kWh 2565 kWh 766 kWh £678 £77 £754 £14,333 19.0 yrs £754
4 kW 4442 kWh 3420 kWh 1022 kWh £904 £102 £1,006 £15,961 15.9 yrs £4,155
5 kW 5552 kWh 4275 kWh 1277 kWh £1,130 £128 £1,257 £17,589 14.0 yrs £7,556
6 kW 6663 kWh 5130 kWh 1532 kWh £1,355 £153 £1,509 £19,217 12.7 yrs £10,958
7 kW 7773 kWh 5986 kWh 1788 kWh £1,581 £179 £1,760 £20,844 11.8 yrs £14,359
8 kW 8884 kWh 6841 kWh 2043 kWh £1,807 £204 £2,012 £22,472 11.2 yrs £17,760

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 Isle of Wight

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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Insights for PO36

Figures below are tailored to PO36 — click through for full league tables.

Big-Roof Britain Rank #928 of 2182
5.1 kWp (UK avg 5.1 kWp)
~11 panels (≈430 W)
Solar Payback Index Rank #70 of 2996
8.9 years (UK avg 10.8 years)
~£1,103 /yr • £9,767 upfront
Standing-Charge Drag Rank #16 of 2996
16.4% (UK avg 26.6%) drag on savings
£181 fixed • ~£1,103 /yr value
Aspect Penalty View ranking →
East −20.9% West −22.7%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in PO36

Monthly generation per kilowatt of solar panels

kWh 41 Jan 57 Feb 96 Mar 127 Apr 134 May 137 Jun 139 Jul 122 Aug 102 Sep 70 Oct 49 Nov 37 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 48.7% 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 93 kWh. So a typical 4 kW home system would generate roughly 180 kWh in winter, or 370 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
26.42p/kWh
Daily Fixed Charge
49.70p/day
Local Sunshine
1110kWh/kW
A 1 kW system generates ~1110 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: 49% • Flats: 29% • Bungalows: 21% Based on 4,798 properties

Coverage

Isle of Wight (100%)

Areas Covered

Sandown South, Sandown North, Brading & St Helens, Lake North, Newchurch, Havenstreet & Ashey, Lake South, Bembridge + 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

PO37 (Isle of Wight)
≈3.0 km away
Local sunshine: ~1,108 kWh/kWp · -0% vs PO36
PO35 (Isle of Wight)
≈6.1 km away
Local sunshine: ~1,111 kWh/kWp · +0% vs PO36
PO34 (Isle of Wight)
≈7.5 km away
Local sunshine: ~1,087 kWh/kWp · -2% vs PO36
PO33 (Isle of Wight)
≈7.7 km away
Local sunshine: ~1,088 kWh/kWp · -2% vs PO36
PO38 (Isle of Wight)
≈7.9 km away
Local sunshine: ~1,125 kWh/kWp · +1% vs PO36
PO30 (Isle of Wight)
≈11.0 km away
Local sunshine: ~1,133 kWh/kWp · +2% vs PO36

Similar sunshine across the UK

CT20 (Folkestone and Hythe)
~1,111 kWh/kWp · +0% vs PO36
BN41 (Brighton and Hove)
~1,110 kWh/kWp · -0% vs PO36
BN4 (Adur)
~1,110 kWh/kWp · -0% vs PO36