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Solar panel cost in Stirling (FK21)

See realistic solar installation costs, savings and payback for FK21 (Stirling) 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
12.8 years
After this, it's pure profit
Upfront Cost
£8,139
What you pay to get started
Annual Benefit
£636
What you save every year
Profit Over 25 Years
£7,765
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 Northern Scotland, the current unit rate is 26.42p/kWh with a 57.55p/day standing charge. Your postcode’s south-facing sunshine yield is 768 kWh/kW — 47 below the regional median (815).

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 768 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
57.5p/day
Sunshine yield (south)
768 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: £636, Upfront: £8,139, Break-even: 12.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1536 kWh 614 kWh 922 kWh £162 £92 £254 £3,256 12.8 yrs £1,834
3 kW 2304 kWh 922 kWh 1382 kWh £243 £138 £382 £4,883 12.8 yrs £2,751
4 kW 3072 kWh 1229 kWh 1843 kWh £325 £184 £509 £6,511 12.8 yrs £3,668
5 kW 3840 kWh 1536 kWh 2304 kWh £406 £230 £636 £8,139 12.8 yrs £4,585
6 kW 4608 kWh 1843 kWh 2765 kWh £487 £276 £763 £9,767 12.8 yrs £5,502
7 kW 5376 kWh 2150 kWh 3225 kWh £568 £323 £891 £11,394 12.8 yrs £6,418
8 kW 6144 kWh 2457 kWh 3686 kWh £649 £369 £1,018 £13,022 12.8 yrs £7,335

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: £762, Upfront: £10,239, Break-even: 13.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1536 kWh 922 kWh 614 kWh £243 £61 £305 £5,356 17.6 yrs £743
3 kW 2304 kWh 1382 kWh 922 kWh £365 £92 £457 £6,983 15.3 yrs £2,164
4 kW 3072 kWh 1843 kWh 1229 kWh £487 £123 £610 £8,611 14.1 yrs £3,585
5 kW 3840 kWh 2304 kWh 1536 kWh £609 £154 £762 £10,239 13.4 yrs £5,007
6 kW 4608 kWh 2765 kWh 1843 kWh £730 £184 £915 £11,867 13.0 yrs £6,428
7 kW 5376 kWh 3225 kWh 2150 kWh £852 £215 £1,067 £13,494 12.6 yrs £7,849
8 kW 6144 kWh 3686 kWh 2457 kWh £974 £246 £1,220 £15,122 12.4 yrs £9,270

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: £825, Upfront: £11,639, Break-even: 14.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1536 kWh 1075 kWh 461 kWh £284 £46 £330 £6,756 20.5 yrs £-153
3 kW 2304 kWh 1613 kWh 691 kWh £426 £69 £495 £8,383 16.9 yrs £1,521
4 kW 3072 kWh 2150 kWh 922 kWh £568 £92 £660 £10,011 15.2 yrs £3,194
5 kW 3840 kWh 2688 kWh 1152 kWh £710 £115 £825 £11,639 14.1 yrs £4,868
6 kW 4608 kWh 3225 kWh 1382 kWh £852 £138 £990 £13,267 13.4 yrs £6,541
7 kW 5376 kWh 3763 kWh 1613 kWh £994 £161 £1,155 £14,894 12.9 yrs £8,215
8 kW 6144 kWh 4301 kWh 1843 kWh £1,136 £184 £1,321 £16,522 12.5 yrs £9,888

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: £844, Upfront: £13,389, 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 1536 kWh 1121 kWh 415 kWh £296 £41 £338 £8,506 25.2 yrs £-1,752
3 kW 2304 kWh 1682 kWh 622 kWh £444 £62 £507 £10,133 20.0 yrs £-3
4 kW 3072 kWh 2242 kWh 829 kWh £592 £83 £675 £11,761 17.4 yrs £1,747
5 kW 3840 kWh 2803 kWh 1037 kWh £741 £104 £844 £13,389 15.9 yrs £3,496
6 kW 4608 kWh 3364 kWh 1244 kWh £889 £124 £1,013 £15,017 14.8 yrs £5,245
7 kW 5376 kWh 3924 kWh 1451 kWh £1,037 £145 £1,182 £16,644 14.1 yrs £6,994
8 kW 6144 kWh 4485 kWh 1659 kWh £1,185 £166 £1,351 £18,272 13.5 yrs £8,743

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: £857, Upfront: £15,139, Break-even: 17.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1536 kWh 1152 kWh 384 kWh £304 £38 £343 £10,256 29.9 yrs £-3,401
3 kW 2304 kWh 1728 kWh 576 kWh £457 £58 £514 £11,883 23.1 yrs £-1,601
4 kW 3072 kWh 2304 kWh 768 kWh £609 £77 £685 £13,511 19.7 yrs £198
5 kW 3840 kWh 2880 kWh 960 kWh £761 £96 £857 £15,139 17.7 yrs £1,998
6 kW 4608 kWh 3456 kWh 1152 kWh £913 £115 £1,028 £16,767 16.3 yrs £3,798
7 kW 5376 kWh 4032 kWh 1344 kWh £1,065 £134 £1,200 £18,394 15.3 yrs £5,597
8 kW 6144 kWh 4608 kWh 1536 kWh £1,217 £154 £1,371 £20,022 14.6 yrs £7,397

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: £869, Upfront: £17,589, Break-even: 20.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1536 kWh 1183 kWh 353 kWh £312 £35 £348 £12,706 36.5 yrs £-5,750
3 kW 2304 kWh 1774 kWh 530 kWh £469 £53 £522 £14,333 27.5 yrs £-3,900
4 kW 3072 kWh 2365 kWh 707 kWh £625 £71 £696 £15,961 22.9 yrs £-2,050
5 kW 3840 kWh 2957 kWh 883 kWh £781 £88 £869 £17,589 20.2 yrs £-200
6 kW 4608 kWh 3548 kWh 1060 kWh £937 £106 £1,043 £19,217 18.4 yrs £1,650
7 kW 5376 kWh 4139 kWh 1236 kWh £1,094 £124 £1,217 £20,844 17.1 yrs £3,500
8 kW 6144 kWh 4731 kWh 1413 kWh £1,250 £141 £1,391 £22,472 16.2 yrs £5,350

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 Stirling

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 FK21

Figures below are tailored to FK21 — click through for full league tables.

Solar Payback Index Rank #2939 of 2996
14.4 years (UK avg 10.8 years)
~£509 /yr • £7,307 upfront
Standing-Charge Drag Rank #2927 of 2996
41.3% (UK avg 26.6%) drag on savings
£210 fixed • ~£509 /yr value
Aspect Penalty View ranking →
East −17.5% West −18.6%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in FK21

Monthly generation per kilowatt of solar panels

kWh 15 Jan 33 Feb 67 Mar 98 Apr 111 May 103 Jun 106 Jul 90 Aug 69 Sep 43 Oct 22 Nov 11 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 30.8% 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 20 kWh per month; the average month produces around 64 kWh. So a typical 4 kW home system would generate roughly 79 kWh in winter, or 256 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
26.42p/kWh
Daily Fixed Charge
57.55p/day
Local Sunshine
768kWh/kW
A 1 kW system generates ~768 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

No EPC data available for this outcode

Coverage

Stirling (96%)|Perth and Kinross (4%)

Areas Covered

Trossachs and Teith, Highland

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 Northern Scotland

FK19 (Stirling)
≈9.3 km away
Local sunshine: ~769 kWh/kWp · +0% vs FK21
FK18 (Stirling)
≈15.9 km away
Local sunshine: ~753 kWh/kWp · -2% vs FK21
FK20 (Stirling)
≈20.2 km away
Local sunshine: ~735 kWh/kWp · -4% vs FK21
PH6 (Perth and Kinross)
≈23.1 km away
Local sunshine: ~824 kWh/kWp · +7% vs FK21
PH17 (Perth and Kinross)
≈24.1 km away
Local sunshine: ~751 kWh/kWp · -2% vs FK21
FK17 (Stirling)
≈25.8 km away
Local sunshine: ~831 kWh/kWp · +8% vs FK21

Similar sunshine across the UK

CA12 (Cumberland)
~767 kWh/kWp · -0% vs FK21
G84 (Argyll and Bute)
~766 kWh/kWp · -0% vs FK21
DL11 (North Yorkshire)
~765 kWh/kWp · -0% vs FK21