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Solar Panels in KY12 (Fife)

See if solar pays off for you in Fife — price, savings and payback in under a minute (official UK data).

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
14.1 years
After this, it's pure profit
Upfront Cost
£12,207
What you pay to get started
Annual Benefit
£864
What you save every year
Profit Over 25 Years
£9,402
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

In Southern Scotland, the current unit rate is 25.84p/kWh with a 56.55p/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 25.8p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
25.8p/kWh
Standing charge
56.5p/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: £10,173, 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 1764 kWh 705 kWh 1058 kWh £182 £106 £288 £4,069 14.1 yrs £1,693
3 kW 2646 kWh 1058 kWh 1587 kWh £273 £159 £432 £6,104 14.1 yrs £2,540
4 kW 3527 kWh 1411 kWh 2116 kWh £365 £212 £576 £8,138 14.1 yrs £3,387
5 kW 4409 kWh 1764 kWh 2646 kWh £456 £265 £720 £10,173 14.1 yrs £4,233
6 kW 5291 kWh 2116 kWh 3175 kWh £547 £317 £864 £12,207 14.1 yrs £5,080
7 kW 6173 kWh 2469 kWh 3704 kWh £638 £370 £1,008 £14,242 14.1 yrs £5,926
8 kW 7055 kWh 2822 kWh 4233 kWh £729 £423 £1,152 £16,276 14.1 yrs £6,773

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: £860, Upfront: £12,273, Break-even: 14.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1764 kWh 1058 kWh 705 kWh £273 £71 £344 £6,169 17.9 yrs £711
3 kW 2646 kWh 1587 kWh 1058 kWh £410 £106 £516 £8,204 15.9 yrs £2,116
4 kW 3527 kWh 2116 kWh 1411 kWh £547 £141 £688 £10,238 14.9 yrs £3,521
5 kW 4409 kWh 2646 kWh 1764 kWh £684 £176 £860 £12,273 14.3 yrs £4,927
6 kW 5291 kWh 3175 kWh 2116 kWh £820 £212 £1,032 £14,307 13.9 yrs £6,332
7 kW 6173 kWh 3704 kWh 2469 kWh £957 £247 £1,204 £16,342 13.6 yrs £7,738
8 kW 7055 kWh 4233 kWh 2822 kWh £1,094 £282 £1,376 £18,376 13.4 yrs £9,143

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: £930, Upfront: £13,673, Break-even: 14.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1764 kWh 1235 kWh 529 kWh £319 £53 £372 £7,569 20.4 yrs £-131
3 kW 2646 kWh 1852 kWh 794 kWh £479 £79 £558 £9,604 17.2 yrs £1,554
4 kW 3527 kWh 2469 kWh 1058 kWh £638 £106 £744 £11,638 15.6 yrs £3,239
5 kW 4409 kWh 3086 kWh 1323 kWh £798 £132 £930 £13,673 14.7 yrs £4,924
6 kW 5291 kWh 3704 kWh 1587 kWh £957 £159 £1,116 £15,707 14.1 yrs £6,608
7 kW 6173 kWh 4321 kWh 1852 kWh £1,117 £185 £1,302 £17,742 13.6 yrs £8,293
8 kW 7055 kWh 4938 kWh 2116 kWh £1,276 £212 £1,488 £19,776 13.3 yrs £9,978

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: £951, Upfront: £15,423, 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 1764 kWh 1287 kWh 476 kWh £333 £48 £380 £9,319 24.5 yrs £-1,713
3 kW 2646 kWh 1931 kWh 714 kWh £499 £71 £570 £11,354 19.9 yrs £56
4 kW 3527 kWh 2575 kWh 952 kWh £665 £95 £761 £13,388 17.6 yrs £1,824
5 kW 4409 kWh 3219 kWh 1190 kWh £832 £119 £951 £15,423 16.2 yrs £3,593
6 kW 5291 kWh 3862 kWh 1429 kWh £998 £143 £1,141 £17,457 15.3 yrs £5,361
7 kW 6173 kWh 4506 kWh 1667 kWh £1,164 £167 £1,331 £19,492 14.6 yrs £7,130
8 kW 7055 kWh 5150 kWh 1905 kWh £1,331 £190 £1,521 £21,526 14.2 yrs £8,898

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: £965, Upfront: £17,173, Break-even: 17.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1764 kWh 1323 kWh 441 kWh £342 £44 £386 £11,069 28.7 yrs £-3,351
3 kW 2646 kWh 1984 kWh 661 kWh £513 £66 £579 £13,104 22.6 yrs £-1,527
4 kW 3527 kWh 2646 kWh 882 kWh £684 £88 £772 £15,138 19.6 yrs £298
5 kW 4409 kWh 3307 kWh 1102 kWh £855 £110 £965 £17,173 17.8 yrs £2,122
6 kW 5291 kWh 3968 kWh 1323 kWh £1,025 £132 £1,158 £19,207 16.6 yrs £3,947
7 kW 6173 kWh 4630 kWh 1543 kWh £1,196 £154 £1,351 £21,242 15.7 yrs £5,771
8 kW 7055 kWh 5291 kWh 1764 kWh £1,367 £176 £1,544 £23,276 15.1 yrs £7,595

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: £979, Upfront: £19,623, Break-even: 20.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1764 kWh 1358 kWh 406 kWh £351 £41 £391 £13,519 34.5 yrs £-5,689
3 kW 2646 kWh 2037 kWh 608 kWh £526 £61 £587 £15,554 26.5 yrs £-3,809
4 kW 3527 kWh 2716 kWh 811 kWh £702 £81 £783 £17,588 22.5 yrs £-1,929
5 kW 4409 kWh 3395 kWh 1014 kWh £877 £101 £979 £19,623 20.0 yrs £-49
6 kW 5291 kWh 4074 kWh 1217 kWh £1,053 £122 £1,174 £21,657 18.4 yrs £1,832
7 kW 6173 kWh 4753 kWh 1420 kWh £1,228 £142 £1,370 £23,692 17.3 yrs £3,712
8 kW 7055 kWh 5432 kWh 1623 kWh £1,404 £162 £1,566 £25,726 16.4 yrs £5,592

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.

Insights for KY12

Figures below are tailored to KY12 — click through for full league tables.

Solar Payback Index Rank #2564 of 2997
12.3 years (UK avg 11.3 years)
~£990 /yr • £12,207 upfront
Standing-Charge Drag Rank #1573 of 2997
20.8% (UK avg 21.7%) drag on savings
£206 fixed • ~£990 /yr value

Your Area at a Glance

Your Electricity Rate
25.84p/kWh
Daily Fixed Charge
56.55p/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, Dunfermline North, West Fife and Coastal Villages, Rosyth, Cowdenbeath

Data Sources & Assumptions

Solar yield: PVGIS (EU Joint Research Centre), January 2025 data

Electricity rates: Ofgem price cap, Q4 2025

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.

Compare nearby areas

Nearby in Southern Scotland

KY99 (Fife)
≈3.1 km away
Local sunshine: ~882 kWh/kWp · -0% vs KY12
KY11 (Fife)
≈3.8 km away
Local sunshine: ~866 kWh/kWp · -2% vs KY12
KY4 (Fife)
≈7.7 km away
Local sunshine: ~896 kWh/kWp · +2% vs KY12
EH30 (City of Edinburgh)
≈10.7 km away
Local sunshine: ~881 kWh/kWp · -0% vs KY12
EH51 (Falkirk)
≈11.3 km away
Local sunshine: ~848 kWh/kWp · -4% vs KY12
KY5 (Fife)
≈12.3 km away
Local sunshine: ~916 kWh/kWp · +4% vs KY12

Similar sunshine across the UK

BL6 (Bolton)
~882 kWh/kWp · +0% vs KY12
M41 (Trafford)
~882 kWh/kWp · +0% vs KY12
BT39 (Antrim and Newtownabbey)
~881 kWh/kWp · -0% vs KY12