Solar panel cost in Walsall (WS5)

See realistic solar installation costs, savings and payback for WS5 (Walsall) 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

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System Size

Roof Direction

Battery Storage

Export Value

Your Numbers

Break-even
10.8 years
After this, it's pure profit
Upfront Cost
£8,139
What you pay to get started
Annual Benefit
£752
What you save every year
Profit Over 25 Years
£10,669
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

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 933 kWh per year on a south-facing roof. We value self-used electricity at 25.3p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
25.3p/kWh
Standing charge
59.7p/day
Sunshine yield (south)
933 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: £752, Upfront: £8,139, Break-even: 10.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1865 kWh 746 kWh 1119 kWh £189 £112 £301 £3,256 10.8 yrs £2,763
3 kW 2798 kWh 1119 kWh 1679 kWh £284 £168 £451 £4,883 10.8 yrs £4,145
4 kW 3731 kWh 1492 kWh 2238 kWh £378 £224 £602 £6,511 10.8 yrs £5,526
5 kW 4664 kWh 1865 kWh 2798 kWh £473 £280 £752 £8,139 10.8 yrs £6,908
6 kW 5596 kWh 2238 kWh 3358 kWh £567 £336 £903 £9,767 10.8 yrs £8,289
7 kW 6529 kWh 2612 kWh 3917 kWh £662 £392 £1,053 £11,394 10.8 yrs £9,671
8 kW 7462 kWh 2985 kWh 4477 kWh £756 £448 £1,204 £13,022 10.8 yrs £11,052

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: £895, Upfront: £10,239, 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 1865 kWh 1119 kWh 746 kWh £284 £75 £358 £5,356 15.0 yrs £1,807
3 kW 2798 kWh 1679 kWh 1119 kWh £425 £112 £537 £6,983 13.0 yrs £3,760
4 kW 3731 kWh 2238 kWh 1492 kWh £567 £149 £716 £8,611 12.0 yrs £5,714
5 kW 4664 kWh 2798 kWh 1865 kWh £709 £187 £895 £10,239 11.4 yrs £7,667
6 kW 5596 kWh 3358 kWh 2238 kWh £851 £224 £1,074 £11,867 11.0 yrs £9,621
7 kW 6529 kWh 3917 kWh 2612 kWh £992 £261 £1,253 £13,494 10.8 yrs £11,574
8 kW 7462 kWh 4477 kWh 2985 kWh £1,134 £298 £1,432 £15,122 10.6 yrs £13,527

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: £967, Upfront: £11,639, Break-even: 12.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1865 kWh 1306 kWh 560 kWh £331 £56 £387 £6,756 17.5 yrs £979
3 kW 2798 kWh 1959 kWh 839 kWh £496 £84 £580 £8,383 14.5 yrs £3,218
4 kW 3731 kWh 2612 kWh 1119 kWh £662 £112 £773 £10,011 12.9 yrs £5,458
5 kW 4664 kWh 3264 kWh 1399 kWh £827 £140 £967 £11,639 12.0 yrs £7,697
6 kW 5596 kWh 3917 kWh 1679 kWh £992 £168 £1,160 £13,267 11.4 yrs £9,936
7 kW 6529 kWh 4570 kWh 1959 kWh £1,158 £196 £1,354 £14,894 11.0 yrs £12,176
8 kW 7462 kWh 5223 kWh 2238 kWh £1,323 £224 £1,547 £16,522 10.7 yrs £14,415

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: £988, Upfront: £13,389, Break-even: 13.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1865 kWh 1362 kWh 504 kWh £345 £50 £395 £8,506 21.5 yrs £-600
3 kW 2798 kWh 2043 kWh 755 kWh £517 £76 £593 £10,133 17.1 yrs £1,726
4 kW 3731 kWh 2723 kWh 1007 kWh £690 £101 £791 £11,761 14.9 yrs £4,051
5 kW 4664 kWh 3404 kWh 1259 kWh £862 £126 £988 £13,389 13.5 yrs £6,376
6 kW 5596 kWh 4085 kWh 1511 kWh £1,035 £151 £1,186 £15,017 12.7 yrs £8,701
7 kW 6529 kWh 4766 kWh 1763 kWh £1,207 £176 £1,384 £16,644 12.0 yrs £11,026
8 kW 7462 kWh 5447 kWh 2015 kWh £1,380 £201 £1,581 £18,272 11.6 yrs £13,352

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: £1,003, Upfront: £15,139, Break-even: 15.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1865 kWh 1399 kWh 466 kWh £354 £47 £401 £10,256 25.6 yrs £-2,235
3 kW 2798 kWh 2099 kWh 700 kWh £532 £70 £602 £11,883 19.8 yrs £147
4 kW 3731 kWh 2798 kWh 933 kWh £709 £93 £802 £13,511 16.8 yrs £2,530
5 kW 4664 kWh 3498 kWh 1166 kWh £886 £117 £1,003 £15,139 15.1 yrs £4,912
6 kW 5596 kWh 4197 kWh 1399 kWh £1,063 £140 £1,203 £16,767 13.9 yrs £7,294
7 kW 6529 kWh 4897 kWh 1632 kWh £1,240 £163 £1,404 £18,394 13.1 yrs £9,677
8 kW 7462 kWh 5596 kWh 1865 kWh £1,418 £187 £1,604 £20,022 12.5 yrs £12,059

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: £1,017, Upfront: £17,589, Break-even: 17.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1865 kWh 1436 kWh 429 kWh £364 £43 £407 £12,706 31.2 yrs £-4,571
3 kW 2798 kWh 2155 kWh 644 kWh £546 £64 £610 £14,333 23.5 yrs £-2,131
4 kW 3731 kWh 2873 kWh 858 kWh £728 £86 £813 £15,961 19.6 yrs £308
5 kW 4664 kWh 3591 kWh 1073 kWh £910 £107 £1,017 £17,589 17.3 yrs £2,748
6 kW 5596 kWh 4309 kWh 1287 kWh £1,091 £129 £1,220 £19,217 15.7 yrs £5,187
7 kW 6529 kWh 5027 kWh 1502 kWh £1,273 £150 £1,424 £20,844 14.6 yrs £7,627
8 kW 7462 kWh 5745 kWh 1716 kWh £1,455 £172 £1,627 £22,472 13.8 yrs £10,067

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 Walsall

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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Seasonal solar output in WS5

Monthly generation per kilowatt of solar panels

kWh 35 Jan 49 Feb 81 Mar 105 Apr 114 May 112 Jun 114 Jul 102 Aug 86 Sep 61 Oct 41 Nov 33 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 50.2% 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 39 kWh per month; the average month produces around 78 kWh. So a typical 4 kW home system would generate roughly 156 kWh in winter, or 311 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
25.33p/kWh
Daily Fixed Charge
59.71p/day
Local Sunshine
933kWh/kW
A 1 kW system generates ~933 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: 77% • Flats: 14% • Bungalows: 8% Based on 4,535 properties

Coverage

Walsall (70%)|Sandwell (30%)

Areas Covered

Paddock, Great Barr with Yew Tree, Palfrey, St Matthew's, Pheasey Park Farm

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.