Solar panel cost in Perth and Kinross (PH5)

See realistic solar installation costs, savings and payback for PH5 (Perth and Kinross) 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
15.6 years
After this, it's pure profit
Upfront Cost
£10,173
What you pay to get started
Annual Benefit
£651
What you save every year
Profit Over 25 Years
£6,091
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

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 847 kWh per year on a south-facing roof. We value self-used electricity at 23.4p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
23.4p/kWh
Standing charge
58.3p/day
Sunshine yield (south)
847 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: £651, Upfront: £10,173, Break-even: 15.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1694 kWh 678 kWh 1016 kWh £159 £102 £260 £4,069 15.6 yrs £1,135
3 kW 2541 kWh 1016 kWh 1525 kWh £238 £152 £390 £6,104 15.6 yrs £1,703
4 kW 3388 kWh 1355 kWh 2033 kWh £317 £203 £520 £8,138 15.6 yrs £2,271
5 kW 4235 kWh 1694 kWh 2541 kWh £396 £254 £651 £10,173 15.6 yrs £2,838
6 kW 5082 kWh 2033 kWh 3049 kWh £476 £305 £781 £12,207 15.6 yrs £3,406
7 kW 5929 kWh 2372 kWh 3558 kWh £555 £356 £911 £14,242 15.6 yrs £3,974
8 kW 6776 kWh 2711 kWh 4066 kWh £634 £407 £1,041 £16,276 15.6 yrs £4,541

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: £764, Upfront: £12,273, Break-even: 16.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1694 kWh 1016 kWh 678 kWh £238 £68 £306 £6,169 20.2 yrs £-57
3 kW 2541 kWh 1525 kWh 1016 kWh £357 £102 £458 £8,204 17.9 yrs £965
4 kW 3388 kWh 2033 kWh 1355 kWh £476 £136 £611 £10,238 16.7 yrs £1,987
5 kW 4235 kWh 2541 kWh 1694 kWh £595 £169 £764 £12,273 16.1 yrs £3,008
6 kW 5082 kWh 3049 kWh 2033 kWh £714 £203 £917 £14,307 15.6 yrs £4,030
7 kW 5929 kWh 3558 kWh 2372 kWh £832 £237 £1,070 £16,342 15.3 yrs £5,052
8 kW 6776 kWh 4066 kWh 2711 kWh £951 £271 £1,222 £18,376 15.0 yrs £6,073

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: £821, Upfront: £13,673, Break-even: 16.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1694 kWh 1186 kWh 508 kWh £277 £51 £328 £7,569 23.1 yrs £-1,003
3 kW 2541 kWh 1779 kWh 762 kWh £416 £76 £492 £9,604 19.5 yrs £246
4 kW 3388 kWh 2372 kWh 1016 kWh £555 £102 £657 £11,638 17.7 yrs £1,495
5 kW 4235 kWh 2965 kWh 1271 kWh £694 £127 £821 £13,673 16.7 yrs £2,743
6 kW 5082 kWh 3558 kWh 1525 kWh £832 £152 £985 £15,707 15.9 yrs £3,992
7 kW 5929 kWh 4151 kWh 1779 kWh £971 £178 £1,149 £17,742 15.4 yrs £5,241
8 kW 6776 kWh 4744 kWh 2033 kWh £1,110 £203 £1,313 £19,776 15.1 yrs £6,490

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: £838, Upfront: £15,423, Break-even: 18.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1694 kWh 1237 kWh 457 kWh £289 £46 £335 £9,319 27.8 yrs £-2,616
3 kW 2541 kWh 1855 kWh 686 kWh £434 £69 £503 £11,354 22.6 yrs £-1,300
4 kW 3388 kWh 2473 kWh 915 kWh £579 £91 £670 £13,388 20.0 yrs £17
5 kW 4235 kWh 3092 kWh 1144 kWh £723 £114 £838 £15,423 18.4 yrs £1,334
6 kW 5082 kWh 3710 kWh 1372 kWh £868 £137 £1,005 £17,457 17.4 yrs £2,651
7 kW 5929 kWh 4328 kWh 1601 kWh £1,013 £160 £1,173 £19,492 16.6 yrs £3,968
8 kW 6776 kWh 4947 kWh 1830 kWh £1,158 £183 £1,341 £21,526 16.1 yrs £5,284

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: £849, Upfront: £17,173, 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 1694 kWh 1271 kWh 424 kWh £297 £42 £340 £11,069 32.6 yrs £-4,276
3 kW 2541 kWh 1906 kWh 635 kWh £446 £64 £510 £13,104 25.7 yrs £-2,913
4 kW 3388 kWh 2541 kWh 847 kWh £595 £85 £679 £15,138 22.3 yrs £-1,551
5 kW 4235 kWh 3176 kWh 1059 kWh £743 £106 £849 £17,173 20.2 yrs £-189
6 kW 5082 kWh 3812 kWh 1271 kWh £892 £127 £1,019 £19,207 18.8 yrs £1,173
7 kW 5929 kWh 4447 kWh 1482 kWh £1,041 £148 £1,189 £21,242 17.9 yrs £2,535
8 kW 6776 kWh 5082 kWh 1694 kWh £1,189 £169 £1,359 £23,276 17.1 yrs £3,898

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: £861, Upfront: £19,623, Break-even: 22.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1694 kWh 1304 kWh 390 kWh £305 £39 £344 £13,519 39.3 yrs £-6,635
3 kW 2541 kWh 1957 kWh 584 kWh £458 £58 £516 £15,554 30.1 yrs £-5,227
4 kW 3388 kWh 2609 kWh 779 kWh £610 £78 £688 £17,588 25.5 yrs £-3,820
5 kW 4235 kWh 3261 kWh 974 kWh £763 £97 £861 £19,623 22.8 yrs £-2,412
6 kW 5082 kWh 3913 kWh 1169 kWh £916 £117 £1,033 £21,657 21.0 yrs £-1,004
7 kW 5929 kWh 4566 kWh 1364 kWh £1,068 £136 £1,205 £23,692 19.7 yrs £403
8 kW 6776 kWh 5218 kWh 1559 kWh £1,221 £156 £1,377 £25,726 18.7 yrs £1,811

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.

Seasonal solar output in PH5

Monthly generation per kilowatt of solar panels

kWh 23 Jan 40 Feb 74 Mar 104 Apr 115 May 108 Jun 112 Jul 97 Aug 77 Sep 50 Oct 31 Nov 17 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 37.4% 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 26 kWh per month; the average month produces around 71 kWh. So a typical 4 kW home system would generate roughly 106 kWh in winter, or 282 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
23.40p/kWh
Daily Fixed Charge
58.28p/day
Local Sunshine
847kWh/kW
A 1 kW system generates ~847 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

Perth and Kinross (100%)

Areas Covered

Strathallan, Strathearn

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.