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Solar panel cost in Fife (KY99)

See realistic solar installation costs, savings and payback for KY99 (Fife) 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
11.3 years
After this, it's pure profit
Upfront Cost
£9,767
What you pay to get started
Annual Benefit
£864
What you save every year
Profit Over 25 Years
£11,840
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 Southern Scotland, the current unit rate is 25.85p/kWh with a 64.17p/day standing charge. Your postcode’s south-facing sunshine yield is 882 kWh/kW — 32 above 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 882 kWh per year on a south-facing roof. We value self-used electricity at 25.9p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
25.9p/kWh
Standing charge
64.2p/day
Sunshine yield (south)
882 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: £720, Upfront: £8,139, Break-even: 11.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1763 kWh 705 kWh 1058 kWh £182 £106 £288 £3,256 11.3 yrs £2,506
3 kW 2645 kWh 1058 kWh 1587 kWh £273 £159 £432 £4,883 11.3 yrs £3,759
4 kW 3526 kWh 1410 kWh 2116 kWh £365 £212 £576 £6,511 11.3 yrs £5,012
5 kW 4408 kWh 1763 kWh 2645 kWh £456 £264 £720 £8,139 11.3 yrs £6,265
6 kW 5289 kWh 2116 kWh 3174 kWh £547 £317 £864 £9,767 11.3 yrs £7,518
7 kW 6171 kWh 2468 kWh 3702 kWh £638 £370 £1,008 £11,394 11.3 yrs £8,772
8 kW 7052 kWh 2821 kWh 4231 kWh £729 £423 £1,152 £13,022 11.3 yrs £10,025

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: £860, Upfront: £10,239, Break-even: 11.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1763 kWh 1058 kWh 705 kWh £273 £71 £344 £5,356 15.6 yrs £1,524
3 kW 2645 kWh 1587 kWh 1058 kWh £410 £106 £516 £6,983 13.5 yrs £3,336
4 kW 3526 kWh 2116 kWh 1410 kWh £547 £141 £688 £8,611 12.5 yrs £5,148
5 kW 4408 kWh 2645 kWh 1763 kWh £684 £176 £860 £10,239 11.9 yrs £6,960
6 kW 5289 kWh 3174 kWh 2116 kWh £820 £212 £1,032 £11,867 11.5 yrs £8,772
7 kW 6171 kWh 3702 kWh 2468 kWh £957 £247 £1,204 £13,494 11.2 yrs £10,584
8 kW 7052 kWh 4231 kWh 2821 kWh £1,094 £282 £1,376 £15,122 11.0 yrs £12,396

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: £930, Upfront: £11,639, Break-even: 12.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1763 kWh 1234 kWh 529 kWh £319 £53 £372 £6,756 18.2 yrs £683
3 kW 2645 kWh 1851 kWh 793 kWh £479 £79 £558 £8,383 15.0 yrs £2,774
4 kW 3526 kWh 2468 kWh 1058 kWh £638 £106 £744 £10,011 13.5 yrs £4,866
5 kW 4408 kWh 3085 kWh 1322 kWh £798 £132 £930 £11,639 12.5 yrs £6,957
6 kW 5289 kWh 3702 kWh 1587 kWh £957 £159 £1,116 £13,267 11.9 yrs £9,048
7 kW 6171 kWh 4319 kWh 1851 kWh £1,117 £185 £1,302 £14,894 11.4 yrs £11,140
8 kW 7052 kWh 4937 kWh 2116 kWh £1,276 £212 £1,488 £16,522 11.1 yrs £13,231

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: £951, Upfront: £13,389, 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 1763 kWh 1287 kWh 476 kWh £333 £48 £380 £8,506 22.4 yrs £-900
3 kW 2645 kWh 1931 kWh 714 kWh £499 £71 £570 £10,133 17.8 yrs £1,276
4 kW 3526 kWh 2574 kWh 952 kWh £665 £95 £761 £11,761 15.5 yrs £3,451
5 kW 4408 kWh 3218 kWh 1190 kWh £832 £119 £951 £13,389 14.1 yrs £5,626
6 kW 5289 kWh 3861 kWh 1428 kWh £998 £143 £1,141 £15,017 13.2 yrs £7,801
7 kW 6171 kWh 4505 kWh 1666 kWh £1,164 £167 £1,331 £16,644 12.5 yrs £9,977
8 kW 7052 kWh 5148 kWh 1904 kWh £1,331 £190 £1,521 £18,272 12.0 yrs £12,152

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: £965, Upfront: £15,139, Break-even: 15.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1763 kWh 1322 kWh 441 kWh £342 £44 £386 £10,256 26.6 yrs £-2,538
3 kW 2645 kWh 1983 kWh 661 kWh £513 £66 £579 £11,883 20.5 yrs £-307
4 kW 3526 kWh 2645 kWh 882 kWh £684 £88 £772 £13,511 17.5 yrs £1,925
5 kW 4408 kWh 3306 kWh 1102 kWh £855 £110 £965 £15,139 15.7 yrs £4,156
6 kW 5289 kWh 3967 kWh 1322 kWh £1,025 £132 £1,158 £16,767 14.5 yrs £6,387
7 kW 6171 kWh 4628 kWh 1543 kWh £1,196 £154 £1,351 £18,394 13.6 yrs £8,618
8 kW 7052 kWh 5289 kWh 1763 kWh £1,367 £176 £1,544 £20,022 13.0 yrs £10,849

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: £979, Upfront: £17,589, 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 1763 kWh 1358 kWh 406 kWh £351 £41 £391 £12,706 32.5 yrs £-4,876
3 kW 2645 kWh 2036 kWh 608 kWh £526 £61 £587 £14,333 24.4 yrs £-2,589
4 kW 3526 kWh 2715 kWh 811 kWh £702 £81 £783 £15,961 20.4 yrs £-302
5 kW 4408 kWh 3394 kWh 1014 kWh £877 £101 £979 £17,589 18.0 yrs £1,985
6 kW 5289 kWh 4073 kWh 1217 kWh £1,053 £122 £1,174 £19,217 16.4 yrs £4,272
7 kW 6171 kWh 4751 kWh 1419 kWh £1,228 £142 £1,370 £20,844 15.2 yrs £6,559
8 kW 7052 kWh 5430 kWh 1622 kWh £1,404 £162 £1,566 £22,472 14.4 yrs £8,846

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 Fife

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 KY99

Figures below are tailored to KY99 — click through for full league tables.

Solar Payback Index Rank #2218 of 2996
11.3 years (UK avg 10.8 years)
~£865 /yr • £9,767 upfront
Standing-Charge Drag Rank #1761 of 2996
27.1% (UK avg 26.6%) drag on savings
£234 fixed • ~£865 /yr value
Aspect Penalty View ranking →
East −20.9% West −21.9%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in KY99

Monthly generation per kilowatt of solar panels

kWh 27 Jan 43 Feb 76 Mar 106 Apr 120 May 111 Jun 113 Jul 100 Aug 79 Sep 52 Oct 35 Nov 21 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 41.0% 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 30 kWh per month; the average month produces around 73 kWh. So a typical 4 kW home system would generate roughly 120 kWh in winter, or 294 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
25.85p/kWh
Daily Fixed Charge
64.17p/day
Local Sunshine
882kWh/kW
A 1 kW system generates ~882 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

Fife (100%)

Areas Covered

Dunfermline Central

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 Southern Scotland

KY11 (Fife)
≈0.9 km away
Local sunshine: ~866 kWh/kWp · -2% vs KY99
KY12 (Fife)
≈3.1 km away
Local sunshine: ~882 kWh/kWp · +0% vs KY99
EH30 (City of Edinburgh)
≈7.7 km away
Local sunshine: ~881 kWh/kWp · -0% vs KY99
KY4 (Fife)
≈8.3 km away
Local sunshine: ~896 kWh/kWp · +2% vs KY99
EH29 (City of Edinburgh)
≈10.6 km away
Local sunshine: ~876 kWh/kWp · -1% vs KY99
EH51 (Falkirk)
≈11.6 km away
Local sunshine: ~848 kWh/kWp · -4% vs KY99

Similar sunshine across the UK

BT39 (Antrim and Newtownabbey)
~881 kWh/kWp · -0% vs KY99
M22 (Manchester)
~881 kWh/kWp · -0% vs KY99
BL4 (Bolton)
~881 kWh/kWp · -0% vs KY99