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Solar panel cost in Falkirk (FK4)

See realistic solar installation costs, savings and payback for FK4 (Falkirk) 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
15.9 years
After this, it's pure profit
Upfront Cost
£12,207
What you pay to get started
Annual Benefit
£770
What you save every year
Profit Over 25 Years
£7,039
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: Bigger systems don’t shorten payback—cost and savings rise together per kW.
  • 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

Costs: Battery prices are typically £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 Scotland, the current unit rate is 22.82p/kWh with a 64.81p/day standing charge. Your postcode’s south-facing sunshine yield is 848 kWh/kW — 2 below the regional median (850).

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 848 kWh per year on a south-facing roof. We value self-used electricity at 22.8p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
22.8p/kWh
Standing charge
64.8p/day
Sunshine yield (south)
848 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: £642, Upfront: £10,173, Break-even: 15.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1696 kWh 679 kWh 1018 kWh £155 £102 £257 £4,069 15.9 yrs £1,063
3 kW 2544 kWh 1018 kWh 1527 kWh £232 £153 £385 £6,104 15.9 yrs £1,595
4 kW 3393 kWh 1357 kWh 2036 kWh £310 £204 £513 £8,138 15.9 yrs £2,126
5 kW 4241 kWh 1696 kWh 2544 kWh £387 £254 £642 £10,173 15.9 yrs £2,658
6 kW 5089 kWh 2036 kWh 3053 kWh £465 £305 £770 £12,207 15.9 yrs £3,190
7 kW 5937 kWh 2375 kWh 3562 kWh £542 £356 £898 £14,242 15.9 yrs £3,721
8 kW 6785 kWh 2714 kWh 4071 kWh £619 £407 £1,026 £16,276 15.9 yrs £4,253

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 2,035, battery £/kWh = 700.

3 kWh battery 5 kW example → Annual benefit: £750, Upfront: £12,273, Break-even: 16.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1696 kWh 1018 kWh 679 kWh £232 £68 £300 £6,169 20.6 yrs £-167
3 kW 2544 kWh 1527 kWh 1018 kWh £348 £102 £450 £8,204 18.2 yrs £800
4 kW 3393 kWh 2036 kWh 1357 kWh £465 £136 £600 £10,238 17.1 yrs £1,766
5 kW 4241 kWh 2544 kWh 1696 kWh £581 £170 £750 £12,273 16.4 yrs £2,733
6 kW 5089 kWh 3053 kWh 2036 kWh £697 £204 £900 £14,307 15.9 yrs £3,699
7 kW 5937 kWh 3562 kWh 2375 kWh £813 £237 £1,050 £16,342 15.6 yrs £4,666
8 kW 6785 kWh 4071 kWh 2714 kWh £929 £271 £1,200 £18,376 15.3 yrs £5,632

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 2,035, battery £/kWh = 700.

5 kWh battery 5 kW example → Annual benefit: £805, Upfront: £13,673, Break-even: 17.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1696 kWh 1187 kWh 509 kWh £271 £51 £322 £7,569 23.5 yrs £-1,132
3 kW 2544 kWh 1781 kWh 763 kWh £406 £76 £483 £9,604 19.9 yrs £52
4 kW 3393 kWh 2375 kWh 1018 kWh £542 £102 £644 £11,638 18.1 yrs £1,236
5 kW 4241 kWh 2968 kWh 1272 kWh £677 £127 £805 £13,673 17.0 yrs £2,420
6 kW 5089 kWh 3562 kWh 1527 kWh £813 £153 £966 £15,707 16.3 yrs £3,604
7 kW 5937 kWh 4156 kWh 1781 kWh £948 £178 £1,126 £17,742 15.7 yrs £4,788
8 kW 6785 kWh 4750 kWh 2036 kWh £1,084 £204 £1,287 £19,776 15.4 yrs £5,972

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 2,035, battery £/kWh = 700.

7.5 kWh battery 5 kW example → Annual benefit: £821, Upfront: £15,423, Break-even: 18.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1696 kWh 1238 kWh 458 kWh £283 £46 £328 £9,319 28.4 yrs £-2,752
3 kW 2544 kWh 1857 kWh 687 kWh £424 £69 £493 £11,354 23.1 yrs £-1,502
4 kW 3393 kWh 2477 kWh 916 kWh £565 £92 £657 £13,388 20.4 yrs £-253
5 kW 4241 kWh 3096 kWh 1145 kWh £706 £114 £821 £15,423 18.8 yrs £996
6 kW 5089 kWh 3715 kWh 1374 kWh £848 £137 £985 £17,457 17.7 yrs £2,245
7 kW 5937 kWh 4334 kWh 1603 kWh £989 £160 £1,149 £19,492 17.0 yrs £3,494
8 kW 6785 kWh 4953 kWh 1832 kWh £1,130 £183 £1,313 £21,526 16.4 yrs £4,744

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 2,035, battery £/kWh = 700.

10 kWh battery 5 kW example → Annual benefit: £832, Upfront: £17,173, Break-even: 20.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1696 kWh 1272 kWh 424 kWh £290 £42 £333 £11,069 33.3 yrs £-4,415
3 kW 2544 kWh 1908 kWh 636 kWh £435 £64 £499 £13,104 26.3 yrs £-3,122
4 kW 3393 kWh 2544 kWh 848 kWh £581 £85 £665 £15,138 22.7 yrs £-1,829
5 kW 4241 kWh 3180 kWh 1060 kWh £726 £106 £832 £17,173 20.6 yrs £-536
6 kW 5089 kWh 3817 kWh 1272 kWh £871 £127 £998 £19,207 19.2 yrs £756
7 kW 5937 kWh 4453 kWh 1484 kWh £1,016 £148 £1,165 £21,242 18.2 yrs £2,049
8 kW 6785 kWh 5089 kWh 1696 kWh £1,161 £170 £1,331 £23,276 17.5 yrs £3,342

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 2,035, battery £/kWh = 700.

13.5 kWh battery 5 kW example → Annual benefit: £843, Upfront: £19,623, Break-even: 23.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1696 kWh 1306 kWh 390 kWh £298 £39 £337 £13,519 40.1 yrs £-6,778
3 kW 2544 kWh 1959 kWh 585 kWh £447 £59 £506 £15,554 30.8 yrs £-5,441
4 kW 3393 kWh 2612 kWh 780 kWh £596 £78 £674 £17,588 26.1 yrs £-4,105
5 kW 4241 kWh 3265 kWh 975 kWh £745 £98 £843 £19,623 23.3 yrs £-2,769
6 kW 5089 kWh 3918 kWh 1170 kWh £894 £117 £1,011 £21,657 21.4 yrs £-1,433
7 kW 5937 kWh 4571 kWh 1365 kWh £1,043 £137 £1,180 £23,692 20.1 yrs £-97
8 kW 6785 kWh 5224 kWh 1561 kWh £1,192 £156 £1,348 £25,726 19.1 yrs £1,240

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 2,035, 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.

Insights for FK4

Figures below are tailored to FK4 — click through for full league tables.

Solar Payback Index Rank #2710 of 2997
14.2 years (UK avg 12.6 years)
~£859 /yr • £12,207 upfront
Standing-Charge Drag Rank #1745 of 2997
24.5% (UK avg 24.6%) drag on savings
£210 fixed • ~£859 /yr value
Aspect Penalty View ranking →
East −19.6% West −20.9%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in FK4

Monthly generation per kilowatt of solar panels

kWh 24 Jan 40 Feb 71 Mar 102 Apr 115 May 109 Jun 109 Jul 98 Aug 76 Sep 52 Oct 34 Nov 19 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 39.3% of an average month (Dec–Feb)

Best / worst month: May / Dec

These figures show output per kilowatt (kW) of panels installed. In winter, a 1 kW system here produces about 28 kWh per month; the average month produces around 71 kWh. So a typical 4 kW home system would generate roughly 111 kWh in winter, or 283 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
22.82p/kWh
Daily Fixed Charge
64.81p/day
Local Sunshine
848kWh/kW
A 1 kW system generates ~848 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

No EPC data available for this outcode

Coverage

Falkirk (99%)|North Lanarkshire (1%)

Areas Covered

Bonnybridge and Larbert, Denny and Banknock, Kilsyth, Cumbernauld North

Data Sources & Assumptions

Solar yield: PVGIS (EU Joint Research Centre), January 2025 data

Electricity rates: Ofgem price cap, Q1 2026

Installation costs: MCS certified installer data, March 2025

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 Scotland

FK6 (Falkirk)
≈2.9 km away
Local sunshine: ~840 kWh/kWp · -1% vs FK4
FK5 (Falkirk)
≈5.6 km away
Local sunshine: ~855 kWh/kWp · +1% vs FK4
FK1 (Falkirk)
≈6.9 km away
Local sunshine: ~860 kWh/kWp · +1% vs FK4
G70 (North Lanarkshire)
≈7.5 km away
Local sunshine: ~817 kWh/kWp · -4% vs FK4
G67 (North Lanarkshire)
≈7.6 km away
Local sunshine: ~817 kWh/kWp · -4% vs FK4
FK2 (Falkirk)
≈7.9 km away
Local sunshine: ~853 kWh/kWp · +1% vs FK4

Similar sunshine across the UK

AB45 (Aberdeenshire)
~848 kWh/kWp · +0% vs FK4
M35 (Oldham)
~848 kWh/kWp · -0% vs FK4
BB12 (Burnley)
~848 kWh/kWp · +0% vs FK4