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Solar panel cost in Stirling (FK18)

See realistic solar installation costs, savings and payback for FK18 (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
13.0 years
After this, it's pure profit
Upfront Cost
£8,139
What you pay to get started
Annual Benefit
£624
What you save every year
Profit Over 25 Years
£7,466
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 753 kWh/kW — 62 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 753 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)
753 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: £624, Upfront: £8,139, Break-even: 13.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1507 kWh 603 kWh 904 kWh £159 £90 £250 £3,256 13.0 yrs £1,738
3 kW 2260 kWh 904 kWh 1356 kWh £239 £136 £375 £4,883 13.0 yrs £2,607
4 kW 3014 kWh 1206 kWh 1808 kWh £319 £181 £499 £6,511 13.0 yrs £3,476
5 kW 3767 kWh 1507 kWh 2260 kWh £398 £226 £624 £8,139 13.0 yrs £4,345
6 kW 4521 kWh 1808 kWh 2713 kWh £478 £271 £749 £9,767 13.0 yrs £5,214
7 kW 5274 kWh 2110 kWh 3165 kWh £557 £316 £874 £11,394 13.0 yrs £6,083
8 kW 6028 kWh 2411 kWh 3617 kWh £637 £362 £999 £13,022 13.0 yrs £6,952

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: £748, Upfront: £10,239, 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 1507 kWh 904 kWh 603 kWh £239 £60 £299 £5,356 17.9 yrs £628
3 kW 2260 kWh 1356 kWh 904 kWh £358 £90 £449 £6,983 15.6 yrs £1,992
4 kW 3014 kWh 1808 kWh 1206 kWh £478 £121 £598 £8,611 14.4 yrs £3,356
5 kW 3767 kWh 2260 kWh 1507 kWh £597 £151 £748 £10,239 13.7 yrs £4,719
6 kW 4521 kWh 2713 kWh 1808 kWh £717 £181 £897 £11,867 13.2 yrs £6,083
7 kW 5274 kWh 3165 kWh 2110 kWh £836 £211 £1,047 £13,494 12.9 yrs £7,447
8 kW 6028 kWh 3617 kWh 2411 kWh £956 £241 £1,197 £15,122 12.6 yrs £8,811

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: £810, Upfront: £11,639, Break-even: 14.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1507 kWh 1055 kWh 452 kWh £279 £45 £324 £6,756 20.9 yrs £-277
3 kW 2260 kWh 1582 kWh 678 kWh £418 £68 £486 £8,383 17.3 yrs £1,334
4 kW 3014 kWh 2110 kWh 904 kWh £557 £90 £648 £10,011 15.5 yrs £2,945
5 kW 3767 kWh 2637 kWh 1130 kWh £697 £113 £810 £11,639 14.4 yrs £4,557
6 kW 4521 kWh 3165 kWh 1356 kWh £836 £136 £972 £13,267 13.7 yrs £6,168
7 kW 5274 kWh 3692 kWh 1582 kWh £975 £158 £1,134 £14,894 13.1 yrs £7,779
8 kW 6028 kWh 4220 kWh 1808 kWh £1,115 £181 £1,296 £16,522 12.8 yrs £9,391

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: £828, Upfront: £13,389, Break-even: 16.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1507 kWh 1100 kWh 407 kWh £291 £41 £331 £8,506 25.7 yrs £-1,879
3 kW 2260 kWh 1650 kWh 610 kWh £436 £61 £497 £10,133 20.4 yrs £-193
4 kW 3014 kWh 2200 kWh 814 kWh £581 £81 £663 £11,761 17.7 yrs £1,492
5 kW 3767 kWh 2750 kWh 1017 kWh £727 £102 £828 £13,389 16.2 yrs £3,178
6 kW 4521 kWh 3300 kWh 1221 kWh £872 £122 £994 £15,017 15.1 yrs £4,863
7 kW 5274 kWh 3850 kWh 1424 kWh £1,017 £142 £1,160 £16,644 14.4 yrs £6,549
8 kW 6028 kWh 4400 kWh 1628 kWh £1,163 £163 £1,325 £18,272 13.8 yrs £8,235

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: £841, Upfront: £15,139, Break-even: 18.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1507 kWh 1130 kWh 377 kWh £299 £38 £336 £10,256 30.5 yrs £-3,530
3 kW 2260 kWh 1695 kWh 565 kWh £448 £57 £504 £11,883 23.6 yrs £-1,795
4 kW 3014 kWh 2260 kWh 753 kWh £597 £75 £673 £13,511 20.1 yrs £-60
5 kW 3767 kWh 2826 kWh 942 kWh £747 £94 £841 £15,139 18.0 yrs £1,675
6 kW 4521 kWh 3391 kWh 1130 kWh £896 £113 £1,009 £16,767 16.6 yrs £3,410
7 kW 5274 kWh 3956 kWh 1319 kWh £1,045 £132 £1,177 £18,394 15.6 yrs £5,145
8 kW 6028 kWh 4521 kWh 1507 kWh £1,194 £151 £1,345 £20,022 14.9 yrs £6,881

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: £853, Upfront: £17,589, 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 1507 kWh 1160 kWh 347 kWh £307 £35 £341 £12,706 37.2 yrs £-5,881
3 kW 2260 kWh 1741 kWh 520 kWh £460 £52 £512 £14,333 28.0 yrs £-4,096
4 kW 3014 kWh 2321 kWh 693 kWh £613 £69 £682 £15,961 23.4 yrs £-2,312
5 kW 3767 kWh 2901 kWh 867 kWh £766 £87 £853 £17,589 20.6 yrs £-527
6 kW 4521 kWh 3481 kWh 1040 kWh £920 £104 £1,024 £19,217 18.8 yrs £1,257
7 kW 5274 kWh 4061 kWh 1213 kWh £1,073 £121 £1,194 £20,844 17.5 yrs £3,042
8 kW 6028 kWh 4641 kWh 1386 kWh £1,226 £139 £1,365 £22,472 16.5 yrs £4,826

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 FK18

Figures below are tailored to FK18 — click through for full league tables.

Solar Payback Index Rank #2945 of 2996
14.6 years (UK avg 10.8 years)
~£499 /yr • £7,307 upfront
Standing-Charge Drag Rank #2944 of 2996
42.1% (UK avg 26.6%) drag on savings
£210 fixed • ~£499 /yr value
Aspect Penalty View ranking →
East −20.0% West −20.4%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in FK18

Monthly generation per kilowatt of solar panels

kWh 15 Jan 33 Feb 65 Mar 97 Apr 108 May 101 Jun 105 Jul 89 Aug 66 Sep 40 Oct 23 Nov 11 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 31.5% 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 63 kWh. So a typical 4 kW home system would generate roughly 79 kWh in winter, or 251 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
26.42p/kWh
Daily Fixed Charge
57.55p/day
Local Sunshine
753kWh/kW
A 1 kW system generates ~753 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 (100%)

Areas Covered

Trossachs and Teith

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)
≈7.2 km away
Local sunshine: ~769 kWh/kWp · +2% vs FK18
FK17 (Stirling)
≈11.5 km away
Local sunshine: ~831 kWh/kWp · +10% vs FK18
FK21 (Stirling)
≈15.9 km away
Local sunshine: ~768 kWh/kWp · +2% vs FK18
FK20 (Stirling)
≈19.6 km away
Local sunshine: ~735 kWh/kWp · -2% vs FK18
PH6 (Perth and Kinross)
≈21.8 km away
Local sunshine: ~824 kWh/kWp · +9% vs FK18
FK16 (Stirling)
≈22.3 km away
Local sunshine: ~861 kWh/kWp · +14% vs FK18

Similar sunshine across the UK

PA19 (Inverclyde)
~756 kWh/kWp · +0% vs FK18
DL11 (North Yorkshire)
~765 kWh/kWp · +2% vs FK18
G84 (Argyll and Bute)
~766 kWh/kWp · +2% vs FK18