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Solar panel cost in South Oxfordshire (OX44)

See realistic solar installation costs, savings and payback for OX44 (South Oxfordshire) 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
9.9 years
After this, it's pure profit
Upfront Cost
£9,767
What you pay to get started
Annual Benefit
£985
What you save every year
Profit Over 25 Years
£14,863
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 991 kWh/kW — 10 below 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 991 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)
991 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: £821, Upfront: £8,139, Break-even: 9.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1982 kWh 793 kWh 1189 kWh £209 £119 £328 £3,256 9.9 yrs £3,312
3 kW 2973 kWh 1189 kWh 1784 kWh £314 £178 £493 £4,883 9.9 yrs £4,969
4 kW 3964 kWh 1586 kWh 2379 kWh £419 £238 £657 £6,511 9.9 yrs £6,625
5 kW 4955 kWh 1982 kWh 2973 kWh £524 £297 £821 £8,139 9.9 yrs £8,281
6 kW 5946 kWh 2379 kWh 3568 kWh £628 £357 £985 £9,767 9.9 yrs £9,937
7 kW 6937 kWh 2775 kWh 4162 kWh £733 £416 £1,149 £11,394 9.9 yrs £11,594
8 kW 7928 kWh 3171 kWh 4757 kWh £838 £476 £1,314 £13,022 9.9 yrs £13,250

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: £984, Upfront: £10,239, Break-even: 10.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1982 kWh 1189 kWh 793 kWh £314 £79 £393 £5,356 13.6 yrs £2,514
3 kW 2973 kWh 1784 kWh 1189 kWh £471 £119 £590 £6,983 11.8 yrs £4,821
4 kW 3964 kWh 2379 kWh 1586 kWh £628 £159 £787 £8,611 10.9 yrs £7,129
5 kW 4955 kWh 2973 kWh 1982 kWh £786 £198 £984 £10,239 10.4 yrs £9,436
6 kW 5946 kWh 3568 kWh 2379 kWh £943 £238 £1,180 £11,867 10.1 yrs £11,743
7 kW 6937 kWh 4162 kWh 2775 kWh £1,100 £277 £1,377 £13,494 9.8 yrs £14,050
8 kW 7928 kWh 4757 kWh 3171 kWh £1,257 £317 £1,574 £15,122 9.6 yrs £16,357

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: £1,065, Upfront: £11,639, Break-even: 10.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1982 kWh 1387 kWh 595 kWh £367 £59 £426 £6,756 15.9 yrs £1,765
3 kW 2973 kWh 2081 kWh 892 kWh £550 £89 £639 £8,383 13.1 yrs £4,398
4 kW 3964 kWh 2775 kWh 1189 kWh £733 £119 £852 £10,011 11.7 yrs £7,030
5 kW 4955 kWh 3469 kWh 1487 kWh £916 £149 £1,065 £11,639 10.9 yrs £9,663
6 kW 5946 kWh 4162 kWh 1784 kWh £1,100 £178 £1,278 £13,267 10.4 yrs £12,296
7 kW 6937 kWh 4856 kWh 2081 kWh £1,283 £208 £1,491 £14,894 10.0 yrs £14,928
8 kW 7928 kWh 5550 kWh 2379 kWh £1,466 £238 £1,704 £16,522 9.7 yrs £17,561

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: £1,090, Upfront: £13,389, Break-even: 12.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1982 kWh 1447 kWh 535 kWh £382 £54 £436 £8,506 19.5 yrs £210
3 kW 2973 kWh 2170 kWh 803 kWh £573 £80 £654 £10,133 15.5 yrs £2,941
4 kW 3964 kWh 2894 kWh 1070 kWh £765 £107 £872 £11,761 13.5 yrs £5,671
5 kW 4955 kWh 3617 kWh 1338 kWh £956 £134 £1,090 £13,389 12.3 yrs £8,401
6 kW 5946 kWh 4341 kWh 1606 kWh £1,147 £161 £1,307 £15,017 11.5 yrs £11,131
7 kW 6937 kWh 5064 kWh 1873 kWh £1,338 £187 £1,525 £16,644 10.9 yrs £13,862
8 kW 7928 kWh 5788 kWh 2141 kWh £1,529 £214 £1,743 £18,272 10.5 yrs £16,592

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: £1,106, Upfront: £15,139, 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 1982 kWh 1487 kWh 496 kWh £393 £50 £442 £10,256 23.2 yrs £-1,409
3 kW 2973 kWh 2230 kWh 743 kWh £589 £74 £663 £11,883 17.9 yrs £1,386
4 kW 3964 kWh 2973 kWh 991 kWh £786 £99 £885 £13,511 15.3 yrs £4,181
5 kW 4955 kWh 3716 kWh 1239 kWh £982 £124 £1,106 £15,139 13.7 yrs £6,977
6 kW 5946 kWh 4460 kWh 1487 kWh £1,178 £149 £1,327 £16,767 12.6 yrs £9,772
7 kW 6937 kWh 5203 kWh 1734 kWh £1,375 £173 £1,548 £18,394 11.9 yrs £12,567
8 kW 7928 kWh 5946 kWh 1982 kWh £1,571 £198 £1,769 £20,022 11.3 yrs £15,363

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: £1,122, Upfront: £17,589, Break-even: 15.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1982 kWh 1526 kWh 456 kWh £403 £46 £449 £12,706 28.3 yrs £-3,729
3 kW 2973 kWh 2289 kWh 684 kWh £605 £68 £673 £14,333 21.3 yrs £-869
4 kW 3964 kWh 3052 kWh 912 kWh £806 £91 £898 £15,961 17.8 yrs £1,992
5 kW 4955 kWh 3816 kWh 1140 kWh £1,008 £114 £1,122 £17,589 15.7 yrs £4,852
6 kW 5946 kWh 4579 kWh 1368 kWh £1,210 £137 £1,346 £19,217 14.3 yrs £7,713
7 kW 6937 kWh 5342 kWh 1596 kWh £1,411 £160 £1,571 £20,844 13.3 yrs £10,573
8 kW 7928 kWh 6105 kWh 1824 kWh £1,613 £182 £1,795 £22,472 12.5 yrs £13,433

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 South Oxfordshire

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 OX44

Figures below are tailored to OX44 — click through for full league tables.

Big-Roof Britain Rank #450 of 2182
5.7 kWp (UK avg 5.1 kWp)
~12 panels (≈430 W)
Solar Payback Index Rank #895 of 2996
9.9 years (UK avg 10.8 years)
~£985 /yr • £9,767 upfront
Standing-Charge Drag Rank #277 of 2996
18.4% (UK avg 26.6%) drag on savings
£181 fixed • ~£985 /yr value
Aspect Penalty View ranking →
East −21.4% West −19.7%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in OX44

Monthly generation per kilowatt of solar panels

kWh 40 Jan 53 Feb 85 Mar 110 Apr 118 May 119 Jun 121 Jul 108 Aug 92 Sep 66 Oct 45 Nov 34 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 51.0% 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 42 kWh per month; the average month produces around 83 kWh. So a typical 4 kW home system would generate roughly 168 kWh in winter, or 330 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
26.42p/kWh
Daily Fixed Charge
49.70p/day
Local Sunshine
991kWh/kW
A 1 kW system generates ~991 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: 76% • Flats: 6% • Bungalows: 16% Based on 2,184 properties

Coverage

South Oxfordshire (86%)|Oxford (14%)

Areas Covered

Haseley Brook, Garsington & Horspath, Chalgrove, Littlemore, Sandford & the Wittenhams, Watlington, Blackbird Leys

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

OX33 (South Oxfordshire)
≈4.6 km away
Local sunshine: ~989 kWh/kWp · -0% vs OX44
OX4 (Oxford)
≈6.0 km away
Local sunshine: ~989 kWh/kWp · -0% vs OX44
OX3 (Oxford)
≈8.3 km away
Local sunshine: ~990 kWh/kWp · -0% vs OX44
OX9 (South Oxfordshire)
≈8.3 km away
Local sunshine: ~982 kWh/kWp · -1% vs OX44
OX1 (Oxford)
≈10.3 km away
Local sunshine: ~987 kWh/kWp · -0% vs OX44
OX49 (South Oxfordshire)
≈11.0 km away
Local sunshine: ~984 kWh/kWp · -1% vs OX44

Similar sunshine across the UK

LU4 (Luton)
~991 kWh/kWp · -0% vs OX44
NW9 (Barnet)
~991 kWh/kWp · +0% vs OX44
SW1A (Westminster)
~991 kWh/kWp · -0% vs OX44