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Solar panel cost in Hammersmith and Fulham (W14)

See realistic solar installation costs, savings and payback for W14 (Hammersmith and Fulham) 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
11.1 years
After this, it's pure profit
Upfront Cost
£5,481
What you pay to get started
Annual Benefit
£494
What you save every year
Profit Over 25 Years
£6,869
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 London, the current unit rate is 26.35p/kWh with a 44.78p/day standing charge. Your postcode’s south-facing sunshine yield is 996 kWh/kW — 5 above the regional median (991).

Read the full story

A typical roof here lands around 3.0 kW, with most eligible homes comfortably fitting within 3–6 kW. Each kilowatt of panels produces roughly 996 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
44.8p/day
Sunshine yield (south)
996 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: £823, Upfront: £9,134, Break-even: 11.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1991 kWh 796 kWh 1195 kWh £210 £119 £329 £3,654 11.1 yrs £2,933
3 kW 2987 kWh 1195 kWh 1792 kWh £315 £179 £494 £5,481 11.1 yrs £4,399
4 kW 3982 kWh 1593 kWh 2389 kWh £420 £239 £659 £7,307 11.1 yrs £5,866
5 kW 4978 kWh 1991 kWh 2987 kWh £525 £299 £823 £9,134 11.1 yrs £7,332
6 kW 5973 kWh 2389 kWh 3584 kWh £630 £358 £988 £10,961 11.1 yrs £8,799
7 kW 6969 kWh 2788 kWh 4181 kWh £735 £418 £1,153 £12,788 11.1 yrs £10,265
8 kW 7964 kWh 3186 kWh 4779 kWh £839 £478 £1,317 £14,615 11.1 yrs £11,732

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,827, battery £/kWh = 700.

3 kWh battery 5 kW example → Annual benefit: £986, Upfront: £11,234, Break-even: 11.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1991 kWh 1195 kWh 796 kWh £315 £80 £394 £5,754 14.6 yrs £2,135
3 kW 2987 kWh 1792 kWh 1195 kWh £472 £119 £592 £7,581 12.8 yrs £4,253
4 kW 3982 kWh 2389 kWh 1593 kWh £630 £159 £789 £9,407 11.9 yrs £6,370
5 kW 4978 kWh 2987 kWh 1991 kWh £787 £199 £986 £11,234 11.4 yrs £8,488
6 kW 5973 kWh 3584 kWh 2389 kWh £944 £239 £1,183 £13,061 11.0 yrs £10,605
7 kW 6969 kWh 4181 kWh 2788 kWh £1,102 £279 £1,381 £14,888 10.8 yrs £12,723
8 kW 7964 kWh 4779 kWh 3186 kWh £1,259 £319 £1,578 £16,715 10.6 yrs £14,840

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,827, battery £/kWh = 700.

5 kWh battery 5 kW example → Annual benefit: £1,067, Upfront: £12,634, 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 1991 kWh 1394 kWh 597 kWh £367 £60 £427 £7,154 16.8 yrs £1,386
3 kW 2987 kWh 2091 kWh 896 kWh £551 £90 £640 £8,981 14.0 yrs £3,829
4 kW 3982 kWh 2788 kWh 1195 kWh £735 £119 £854 £10,807 12.7 yrs £6,272
5 kW 4978 kWh 3484 kWh 1493 kWh £918 £149 £1,067 £12,634 11.8 yrs £8,715
6 kW 5973 kWh 4181 kWh 1792 kWh £1,102 £179 £1,281 £14,461 11.3 yrs £11,158
7 kW 6969 kWh 4878 kWh 2091 kWh £1,285 £209 £1,494 £16,288 10.9 yrs £13,602
8 kW 7964 kWh 5575 kWh 2389 kWh £1,469 £239 £1,708 £18,115 10.6 yrs £16,045

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,827, battery £/kWh = 700.

7.5 kWh battery 5 kW example → Annual benefit: £1,092, Upfront: £14,384, 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 1991 kWh 1454 kWh 538 kWh £383 £54 £437 £8,904 20.4 yrs £-169
3 kW 2987 kWh 2180 kWh 806 kWh £574 £81 £655 £10,731 16.4 yrs £2,372
4 kW 3982 kWh 2907 kWh 1075 kWh £766 £108 £874 £12,557 14.4 yrs £4,913
5 kW 4978 kWh 3634 kWh 1344 kWh £957 £134 £1,092 £14,384 13.2 yrs £7,454
6 kW 5973 kWh 4361 kWh 1613 kWh £1,149 £161 £1,310 £16,211 12.4 yrs £9,994
7 kW 6969 kWh 5087 kWh 1882 kWh £1,340 £188 £1,529 £18,038 11.8 yrs £12,535
8 kW 7964 kWh 5814 kWh 2150 kWh £1,532 £215 £1,747 £19,865 11.4 yrs £15,076

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,827, battery £/kWh = 700.

10 kWh battery 5 kW example → Annual benefit: £1,108, Upfront: £16,134, Break-even: 14.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1991 kWh 1493 kWh 498 kWh £393 £50 £443 £10,654 24.0 yrs £-1,788
3 kW 2987 kWh 2240 kWh 747 kWh £590 £75 £665 £12,481 18.8 yrs £818
4 kW 3982 kWh 2987 kWh 996 kWh £787 £100 £887 £14,307 16.1 yrs £3,423
5 kW 4978 kWh 3733 kWh 1244 kWh £984 £124 £1,108 £16,134 14.6 yrs £6,029
6 kW 5973 kWh 4480 kWh 1493 kWh £1,180 £149 £1,330 £17,961 13.5 yrs £8,635
7 kW 6969 kWh 5227 kWh 1742 kWh £1,377 £174 £1,551 £19,788 12.8 yrs £11,241
8 kW 7964 kWh 5973 kWh 1991 kWh £1,574 £199 £1,773 £21,615 12.2 yrs £13,847

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,827, battery £/kWh = 700.

13.5 kWh battery 5 kW example → Annual benefit: £1,124, Upfront: £18,584, Break-even: 16.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1991 kWh 1533 kWh 458 kWh £404 £46 £450 £13,104 29.1 yrs £-4,108
3 kW 2987 kWh 2300 kWh 687 kWh £606 £69 £675 £14,931 22.1 yrs £-1,437
4 kW 3982 kWh 3066 kWh 916 kWh £808 £92 £900 £16,757 18.6 yrs £1,234
5 kW 4978 kWh 3833 kWh 1145 kWh £1,010 £114 £1,124 £18,584 16.5 yrs £3,905
6 kW 5973 kWh 4599 kWh 1374 kWh £1,212 £137 £1,349 £20,411 15.1 yrs £6,576
7 kW 6969 kWh 5366 kWh 1603 kWh £1,414 £160 £1,574 £22,238 14.1 yrs £9,247
8 kW 7964 kWh 6133 kWh 1832 kWh £1,616 £183 £1,799 £24,065 13.4 yrs £11,918

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,827, 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 Hammersmith and Fulham

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 W14

Figures below are tailored to W14 — click through for full league tables.

Solar Payback Index Rank #1020 of 2996
9.9 years (UK avg 10.8 years)
~£988 /yr • £9,767 upfront
Standing-Charge Drag Rank #40 of 2996
16.5% (UK avg 26.6%) drag on savings
£163 fixed • ~£988 /yr value
Aspect Penalty View ranking →
East −22.1% West −19.5%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in W14

Monthly generation per kilowatt of solar panels

kWh 40 Jan 52 Feb 85 Mar 111 Apr 117 May 119 Jun 121 Jul 107 Aug 93 Sep 68 Oct 47 Nov 36 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 51.2% 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 170 kWh in winter, or 332 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
26.35p/kWh
Daily Fixed Charge
44.78p/day
Local Sunshine
996kWh/kW
A 1 kW system generates ~996 kWh per year. A typical home uses ~2,700 kWh per year.
Typical System Size
3.0kW
For eligible homes in this area

⚠️ This area is predominantly flats. Many residents require freeholder approval for solar installations. System size shown reflects houses and bungalows only.

Local Property Data

Property Types

Houses: 8% • Flats: 86% • Bungalows: 0% Based on 15,195 properties

Coverage

Hammersmith and Fulham (86%)|Kensington and Chelsea (14%)

Areas Covered

Brook Green, West Kensington, Holland, Avonmore, Addison, Fulham Reach, Abingdon, Hammersmith Broadway

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 London

W8 (Kensington and Chelsea)
≈1.1 km away
Local sunshine: ~989 kWh/kWp · -1% vs W14
W6 (Hammersmith and Fulham)
≈1.5 km away
Local sunshine: ~995 kWh/kWp · -0% vs W14
SW5 (Kensington and Chelsea)
≈1.7 km away
Local sunshine: ~992 kWh/kWp · -0% vs W14
W12 (Hammersmith and Fulham)
≈2.0 km away
Local sunshine: ~990 kWh/kWp · -1% vs W14
W11 (Kensington and Chelsea)
≈2.0 km away
Local sunshine: ~990 kWh/kWp · -1% vs W14
SW6 (Hammersmith and Fulham)
≈2.2 km away
Local sunshine: ~992 kWh/kWp · -0% vs W14

Similar sunshine across the UK

GU51 (Hart)
~995 kWh/kWp · -0% vs W14
KT14 (Woking)
~995 kWh/kWp · -0% vs W14
LL63 (Isle of Anglesey)
~996 kWh/kWp · +0% vs W14