Solar panel cost in Perth and Kinross (PH12)

See realistic solar installation costs, savings and payback for PH12 (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

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System Size

Roof Direction

Battery Storage

Export Value

Your Numbers

Break-even
11.0 years
After this, it's pure profit
Upfront Cost
£8,139
What you pay to get started
Annual Benefit
£739
What you save every year
Profit Over 25 Years
£10,332
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 892 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)
892 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: £739, Upfront: £8,139, Break-even: 11.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1784 kWh 713 kWh 1070 kWh £189 £107 £296 £3,256 11.0 yrs £2,655
3 kW 2676 kWh 1070 kWh 1605 kWh £283 £161 £443 £4,883 11.0 yrs £3,983
4 kW 3567 kWh 1427 kWh 2140 kWh £377 £214 £591 £6,511 11.0 yrs £5,310
5 kW 4459 kWh 1784 kWh 2676 kWh £471 £268 £739 £8,139 11.0 yrs £6,638
6 kW 5351 kWh 2140 kWh 3211 kWh £566 £321 £887 £9,767 11.0 yrs £7,965
7 kW 6243 kWh 2497 kWh 3746 kWh £660 £375 £1,034 £11,394 11.0 yrs £9,293
8 kW 7135 kWh 2854 kWh 4281 kWh £754 £428 £1,182 £13,022 11.0 yrs £10,620

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: £885, Upfront: £10,239, Break-even: 11.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1784 kWh 1070 kWh 713 kWh £283 £71 £354 £5,356 15.1 yrs £1,727
3 kW 2676 kWh 1605 kWh 1070 kWh £424 £107 £531 £6,983 13.1 yrs £3,640
4 kW 3567 kWh 2140 kWh 1427 kWh £566 £143 £708 £8,611 12.2 yrs £5,553
5 kW 4459 kWh 2676 kWh 1784 kWh £707 £178 £885 £10,239 11.6 yrs £7,466
6 kW 5351 kWh 3211 kWh 2140 kWh £848 £214 £1,062 £11,867 11.2 yrs £9,380
7 kW 6243 kWh 3746 kWh 2497 kWh £990 £250 £1,239 £13,494 10.9 yrs £11,293
8 kW 7135 kWh 4281 kWh 2854 kWh £1,131 £285 £1,416 £15,122 10.7 yrs £13,206

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: £958, Upfront: £11,639, Break-even: 12.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1784 kWh 1249 kWh 535 kWh £330 £54 £383 £6,756 17.6 yrs £912
3 kW 2676 kWh 1873 kWh 803 kWh £495 £80 £575 £8,383 14.6 yrs £3,119
4 kW 3567 kWh 2497 kWh 1070 kWh £660 £107 £767 £10,011 13.1 yrs £5,325
5 kW 4459 kWh 3122 kWh 1338 kWh £825 £134 £958 £11,639 12.1 yrs £7,531
6 kW 5351 kWh 3746 kWh 1605 kWh £990 £161 £1,150 £13,267 11.5 yrs £9,737
7 kW 6243 kWh 4370 kWh 1873 kWh £1,155 £187 £1,342 £14,894 11.1 yrs £11,943
8 kW 7135 kWh 4994 kWh 2140 kWh £1,320 £214 £1,534 £16,522 10.8 yrs £14,149

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: £980, Upfront: £13,389, 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 1784 kWh 1302 kWh 482 kWh £344 £48 £392 £8,506 21.7 yrs £-662
3 kW 2676 kWh 1953 kWh 722 kWh £516 £72 £588 £10,133 17.2 yrs £1,632
4 kW 3567 kWh 2604 kWh 963 kWh £688 £96 £784 £11,761 15.0 yrs £3,926
5 kW 4459 kWh 3255 kWh 1204 kWh £860 £120 £980 £13,389 13.7 yrs £6,220
6 kW 5351 kWh 3906 kWh 1445 kWh £1,032 £144 £1,177 £15,017 12.8 yrs £8,514
7 kW 6243 kWh 4557 kWh 1686 kWh £1,204 £169 £1,373 £16,644 12.1 yrs £10,808
8 kW 7135 kWh 5208 kWh 1926 kWh £1,376 £193 £1,569 £18,272 11.6 yrs £13,102

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: £995, Upfront: £15,139, Break-even: 15.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1784 kWh 1338 kWh 446 kWh £353 £45 £398 £10,256 25.8 yrs £-2,295
3 kW 2676 kWh 2007 kWh 669 kWh £530 £67 £597 £11,883 19.9 yrs £58
4 kW 3567 kWh 2676 kWh 892 kWh £707 £89 £796 £13,511 17.0 yrs £2,410
5 kW 4459 kWh 3344 kWh 1115 kWh £884 £111 £995 £15,139 15.2 yrs £4,763
6 kW 5351 kWh 4013 kWh 1338 kWh £1,060 £134 £1,194 £16,767 14.0 yrs £7,116
7 kW 6243 kWh 4682 kWh 1561 kWh £1,237 £156 £1,393 £18,394 13.2 yrs £9,468
8 kW 7135 kWh 5351 kWh 1784 kWh £1,414 £178 £1,592 £20,022 12.6 yrs £11,821

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: £1,010, Upfront: £17,589, Break-even: 17.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1784 kWh 1373 kWh 410 kWh £363 £41 £404 £12,706 31.5 yrs £-4,628
3 kW 2676 kWh 2060 kWh 615 kWh £544 £62 £606 £14,333 23.7 yrs £-2,216
4 kW 3567 kWh 2747 kWh 821 kWh £726 £82 £808 £15,961 19.8 yrs £195
5 kW 4459 kWh 3434 kWh 1026 kWh £907 £103 £1,010 £17,589 17.4 yrs £2,606
6 kW 5351 kWh 4120 kWh 1231 kWh £1,089 £123 £1,212 £19,217 15.9 yrs £5,017
7 kW 6243 kWh 4807 kWh 1436 kWh £1,270 £144 £1,414 £20,844 14.7 yrs £7,428
8 kW 7135 kWh 5494 kWh 1641 kWh £1,451 £164 £1,616 £22,472 13.9 yrs £9,840

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 Perth and Kinross

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 PH12

Monthly generation per kilowatt of solar panels

kWh 25 Jan 43 Feb 78 Mar 108 Apr 120 May 112 Jun 116 Jul 101 Aug 81 Sep 54 Oct 34 Nov 19 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 39.4% 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 29 kWh per month; the average month produces around 74 kWh. So a typical 4 kW home system would generate roughly 117 kWh in winter, or 297 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
26.42p/kWh
Daily Fixed Charge
57.55p/day
Local Sunshine
892kWh/kW
A 1 kW system generates ~892 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 (51%)|Angus (49%)

Areas Covered

Strathmore, Kirriemuir and Dean, Blairgowrie and Glens

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.