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Solar Panels in LL63 (Isle of Anglesey)

See if solar pays off for you in Isle of Anglesey — 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
12.0 years
After this, it's pure profit
Upfront Cost
£12,207
What you pay to get started
Annual Benefit
£1,021
What you save every year
Profit Over 25 Years
£13,314
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 North Wales and Mersey, the current unit rate is 27.72p/kWh with a 69.95p/day standing charge. Your postcode’s south-facing sunshine yield is 996 kWh/kW — 66 above the regional median (930).

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 996 kWh per year on a south-facing roof. We value self-used electricity at 27.7p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
27.7p/kWh
Standing charge
70.0p/day
Sunshine yield (south)
996 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: £851, Upfront: £10,173, Break-even: 12.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1991 kWh 797 kWh 1195 kWh £221 £119 £340 £4,069 12.0 yrs £2,737
3 kW 2987 kWh 1195 kWh 1792 kWh £331 £179 £510 £6,104 12.0 yrs £4,105
4 kW 3983 kWh 1593 kWh 2390 kWh £442 £239 £681 £8,138 12.0 yrs £5,473
5 kW 4978 kWh 1991 kWh 2987 kWh £552 £299 £851 £10,173 12.0 yrs £6,842
6 kW 5974 kWh 2390 kWh 3584 kWh £662 £358 £1,021 £12,207 12.0 yrs £8,210
7 kW 6970 kWh 2788 kWh 4182 kWh £773 £418 £1,191 £14,242 12.0 yrs £9,579
8 kW 7966 kWh 3186 kWh 4779 kWh £883 £478 £1,361 £16,276 12.0 yrs £10,947

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: £1,027, Upfront: £12,273, 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 1991 kWh 1195 kWh 797 kWh £331 £80 £411 £6,169 15.0 yrs £2,048
3 kW 2987 kWh 1792 kWh 1195 kWh £497 £119 £616 £8,204 13.3 yrs £4,122
4 kW 3983 kWh 2390 kWh 1593 kWh £662 £159 £822 £10,238 12.5 yrs £6,196
5 kW 4978 kWh 2987 kWh 1991 kWh £828 £199 £1,027 £12,273 11.9 yrs £8,271
6 kW 5974 kWh 3584 kWh 2390 kWh £994 £239 £1,233 £14,307 11.6 yrs £10,345
7 kW 6970 kWh 4182 kWh 2788 kWh £1,159 £279 £1,438 £16,342 11.4 yrs £12,419
8 kW 7966 kWh 4779 kWh 3186 kWh £1,325 £319 £1,643 £18,376 11.2 yrs £14,493

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: £1,115, Upfront: £13,673, Break-even: 12.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1991 kWh 1394 kWh 597 kWh £386 £60 £446 £7,569 17.0 yrs £1,354
3 kW 2987 kWh 2091 kWh 896 kWh £580 £90 £669 £9,604 14.4 yrs £3,781
4 kW 3983 kWh 2788 kWh 1195 kWh £773 £119 £892 £11,638 13.0 yrs £6,208
5 kW 4978 kWh 3485 kWh 1494 kWh £966 £149 £1,115 £13,673 12.3 yrs £8,635
6 kW 5974 kWh 4182 kWh 1792 kWh £1,159 £179 £1,338 £15,707 11.7 yrs £11,062
7 kW 6970 kWh 4879 kWh 2091 kWh £1,352 £209 £1,562 £17,742 11.4 yrs £13,489
8 kW 7966 kWh 5576 kWh 2390 kWh £1,546 £239 £1,785 £19,776 11.1 yrs £15,916

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: £1,142, Upfront: £15,423, Break-even: 13.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1991 kWh 1454 kWh 538 kWh £403 £54 £457 £9,319 20.4 yrs £-184
3 kW 2987 kWh 2181 kWh 807 kWh £604 £81 £685 £11,354 16.6 yrs £2,349
4 kW 3983 kWh 2907 kWh 1075 kWh £806 £108 £913 £13,388 14.7 yrs £4,881
5 kW 4978 kWh 3634 kWh 1344 kWh £1,007 £134 £1,142 £15,423 13.5 yrs £7,414
6 kW 5974 kWh 4361 kWh 1613 kWh £1,209 £161 £1,370 £17,457 12.7 yrs £9,947
7 kW 6970 kWh 5088 kWh 1882 kWh £1,410 £188 £1,599 £19,492 12.2 yrs £12,480
8 kW 7966 kWh 5815 kWh 2151 kWh £1,612 £215 £1,827 £21,526 11.8 yrs £15,013

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: £1,159, Upfront: £17,173, Break-even: 14.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1991 kWh 1494 kWh 498 kWh £414 £50 £464 £11,069 23.9 yrs £-1,793
3 kW 2987 kWh 2240 kWh 747 kWh £621 £75 £696 £13,104 18.8 yrs £810
4 kW 3983 kWh 2987 kWh 996 kWh £828 £100 £928 £15,138 16.3 yrs £3,414
5 kW 4978 kWh 3734 kWh 1245 kWh £1,035 £124 £1,159 £17,173 14.8 yrs £6,017
6 kW 5974 kWh 4481 kWh 1494 kWh £1,242 £149 £1,391 £19,207 13.8 yrs £8,620
7 kW 6970 kWh 5227 kWh 1742 kWh £1,449 £174 £1,623 £21,242 13.1 yrs £11,224
8 kW 7966 kWh 5974 kWh 1991 kWh £1,656 £199 £1,855 £23,276 12.5 yrs £13,827

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: £1,177, Upfront: £19,623, 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 1991 kWh 1533 kWh 458 kWh £425 £46 £471 £13,519 28.7 yrs £-4,102
3 kW 2987 kWh 2300 kWh 687 kWh £638 £69 £706 £15,554 22.0 yrs £-1,428
4 kW 3983 kWh 3067 kWh 916 kWh £850 £92 £942 £17,588 18.7 yrs £1,246
5 kW 4978 kWh 3833 kWh 1145 kWh £1,063 £115 £1,177 £19,623 16.7 yrs £3,920
6 kW 5974 kWh 4600 kWh 1374 kWh £1,275 £137 £1,413 £21,657 15.3 yrs £6,594
7 kW 6970 kWh 5367 kWh 1603 kWh £1,488 £160 £1,648 £23,692 14.4 yrs £9,268
8 kW 7966 kWh 6133 kWh 1832 kWh £1,700 £183 £1,883 £25,726 13.7 yrs £11,942

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 LL63

Figures below are tailored to LL63 — click through for full league tables.

Big-Roof Britain Rank #532 of 2182
5.6 kWp (UK avg 5.1 kWp)
~12 panels (≈430 W)
Solar Payback Index Rank #329 of 2997
10.3 years (UK avg 11.3 years)
~£1,180 /yr • £12,207 upfront
Standing-Charge Drag Rank #1748 of 2997
21.6% (UK avg 21.7%) drag on savings
£255 fixed • ~£1,180 /yr value

Your Area at a Glance

Your Electricity Rate
27.72p/kWh
Daily Fixed Charge
69.95p/day
Local Sunshine
996kWh/kW
A 1 kW system generates ~996 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

Houses: 56% • Flats: 7% • Bungalows: 38% Based on 619 properties

Coverage

Isle of Anglesey (100%)

Areas Covered

Bro Aberffraw, Crigyll, Cefni

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 North Wales and Mersey

LL64 (Isle of Anglesey)
≈3.3 km away
Local sunshine: ~989 kWh/kWp · -1% vs LL63
LL62 (Isle of Anglesey)
≈5.9 km away
Local sunshine: ~986 kWh/kWp · -1% vs LL63
LL77 (Isle of Anglesey)
≈11.2 km away
Local sunshine: ~966 kWh/kWp · -3% vs LL63
LL60 (Isle of Anglesey)
≈13.1 km away
Local sunshine: ~907 kWh/kWp · -9% vs LL63
LL65 (Isle of Anglesey)
≈13.1 km away
Local sunshine: ~1,025 kWh/kWp · +3% vs LL63
LL71 (Isle of Anglesey)
≈13.2 km away
Local sunshine: ~992 kWh/kWp · -0% vs LL63

Similar sunshine across the UK

GU22 (Woking)
~996 kWh/kWp · +0% vs LL63
TW4 (Hounslow)
~996 kWh/kWp · +0% vs LL63
W14 (Hammersmith and Fulham)
~996 kWh/kWp · -0% vs LL63