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Solar Panels in LL69 (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).

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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
12.2 years
After this, it's pure profit
Upfront Cost
£12,207
What you pay to get started
Annual Benefit
£1,001
What you save every year
Profit Over 25 Years
£12,811
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 976 kWh/kW — 46 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 976 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)
976 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: £834, Upfront: £10,173, Break-even: 12.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1952 kWh 781 kWh 1171 kWh £216 £117 £334 £4,069 12.2 yrs £2,602
3 kW 2928 kWh 1171 kWh 1757 kWh £325 £176 £500 £6,104 12.2 yrs £3,904
4 kW 3904 kWh 1562 kWh 2343 kWh £433 £234 £667 £8,138 12.2 yrs £5,205
5 kW 4880 kWh 1952 kWh 2928 kWh £541 £293 £834 £10,173 12.2 yrs £6,506
6 kW 5856 kWh 2343 kWh 3514 kWh £649 £351 £1,001 £12,207 12.2 yrs £7,807
7 kW 6832 kWh 2733 kWh 4099 kWh £758 £410 £1,168 £14,242 12.2 yrs £9,109
8 kW 7808 kWh 3123 kWh 4685 kWh £866 £469 £1,334 £16,276 12.2 yrs £10,410

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: £1,007, Upfront: £12,273, Break-even: 12.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1952 kWh 1171 kWh 781 kWh £325 £78 £403 £6,169 15.3 yrs £1,886
3 kW 2928 kWh 1757 kWh 1171 kWh £487 £117 £604 £8,204 13.6 yrs £3,879
4 kW 3904 kWh 2343 kWh 1562 kWh £649 £156 £806 £10,238 12.7 yrs £5,872
5 kW 4880 kWh 2928 kWh 1952 kWh £812 £195 £1,007 £12,273 12.2 yrs £7,865
6 kW 5856 kWh 3514 kWh 2343 kWh £974 £234 £1,208 £14,307 11.8 yrs £9,858
7 kW 6832 kWh 4099 kWh 2733 kWh £1,136 £273 £1,410 £16,342 11.6 yrs £11,851
8 kW 7808 kWh 4685 kWh 3123 kWh £1,299 £312 £1,611 £18,376 11.4 yrs £13,845

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: £1,093, Upfront: £13,673, 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 1952 kWh 1366 kWh 586 kWh £379 £59 £437 £7,569 17.3 yrs £1,178
3 kW 2928 kWh 2050 kWh 878 kWh £568 £88 £656 £9,604 14.6 yrs £3,517
4 kW 3904 kWh 2733 kWh 1171 kWh £758 £117 £875 £11,638 13.3 yrs £5,856
5 kW 4880 kWh 3416 kWh 1464 kWh £947 £146 £1,093 £13,673 12.5 yrs £8,195
6 kW 5856 kWh 4099 kWh 1757 kWh £1,136 £176 £1,312 £15,707 12.0 yrs £10,534
7 kW 6832 kWh 4783 kWh 2050 kWh £1,326 £205 £1,531 £17,742 11.6 yrs £12,873
8 kW 7808 kWh 5466 kWh 2343 kWh £1,515 £234 £1,749 £19,776 11.3 yrs £15,212

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: £1,119, Upfront: £15,423, Break-even: 13.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1952 kWh 1425 kWh 527 kWh £395 £53 £448 £9,319 20.8 yrs £-365
3 kW 2928 kWh 2138 kWh 791 kWh £593 £79 £672 £11,354 16.9 yrs £2,078
4 kW 3904 kWh 2850 kWh 1054 kWh £790 £105 £895 £13,388 15.0 yrs £4,521
5 kW 4880 kWh 3563 kWh 1318 kWh £988 £132 £1,119 £15,423 13.8 yrs £6,964
6 kW 5856 kWh 4275 kWh 1581 kWh £1,185 £158 £1,343 £17,457 13.0 yrs £9,406
7 kW 6832 kWh 4988 kWh 1845 kWh £1,383 £184 £1,567 £19,492 12.4 yrs £11,849
8 kW 7808 kWh 5700 kWh 2108 kWh £1,580 £211 £1,791 £21,526 12.0 yrs £14,292

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: £1,137, Upfront: £17,173, Break-even: 15.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1952 kWh 1464 kWh 488 kWh £406 £49 £455 £11,069 24.3 yrs £-1,976
3 kW 2928 kWh 2196 kWh 732 kWh £609 £73 £682 £13,104 19.2 yrs £536
4 kW 3904 kWh 2928 kWh 976 kWh £812 £98 £909 £15,138 16.6 yrs £3,048
5 kW 4880 kWh 3660 kWh 1220 kWh £1,015 £122 £1,137 £17,173 15.1 yrs £5,560
6 kW 5856 kWh 4392 kWh 1464 kWh £1,218 £146 £1,364 £19,207 14.1 yrs £8,072
7 kW 6832 kWh 5124 kWh 1708 kWh £1,420 £171 £1,591 £21,242 13.3 yrs £10,584
8 kW 7808 kWh 5856 kWh 1952 kWh £1,623 £195 £1,819 £23,276 12.8 yrs £13,095

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: £1,154, Upfront: £19,623, Break-even: 17.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1952 kWh 1503 kWh 449 kWh £417 £45 £462 £13,519 29.3 yrs £-4,288
3 kW 2928 kWh 2255 kWh 673 kWh £625 £67 £692 £15,554 22.5 yrs £-1,707
4 kW 3904 kWh 3006 kWh 898 kWh £833 £90 £923 £17,588 19.1 yrs £874
5 kW 4880 kWh 3758 kWh 1122 kWh £1,042 £112 £1,154 £19,623 17.0 yrs £3,456
6 kW 5856 kWh 4509 kWh 1347 kWh £1,250 £135 £1,385 £21,657 15.6 yrs £6,037
7 kW 6832 kWh 5261 kWh 1571 kWh £1,458 £157 £1,615 £23,692 14.7 yrs £8,618
8 kW 7808 kWh 6012 kWh 1796 kWh £1,667 £180 £1,846 £25,726 13.9 yrs £11,199

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 LL69

Figures below are tailored to LL69 — click through for full league tables.

Big-Roof Britain Rank #189 of 2182
6.2 kWp (UK avg 5.1 kWp)
~13 panels (≈430 W)
Solar Payback Index Rank #668 of 2997
10.6 years (UK avg 11.3 years)
~£1,156 /yr • £12,207 upfront
Standing-Charge Drag Rank #1926 of 2997
22.1% (UK avg 21.7%) drag on savings
£255 fixed • ~£1,156 /yr value

Your Area at a Glance

Your Electricity Rate
27.72p/kWh
Daily Fixed Charge
69.95p/day
Local Sunshine
976kWh/kW
A 1 kW system generates ~976 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: 4% • Bungalows: 40% Based on 210 properties

Coverage

Isle of Anglesey (100%)

Areas Covered

Twrcelyn

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

LL68 (Isle of Anglesey)
≈3.1 km away
Local sunshine: ~1,005 kWh/kWp · +3% vs LL69
LL70 (Isle of Anglesey)
≈3.6 km away
Local sunshine: ~945 kWh/kWp · -3% vs LL69
LL66 (Isle of Anglesey)
≈6.3 km away
Local sunshine: ~996 kWh/kWp · +2% vs LL69
LL72 (Isle of Anglesey)
≈6.6 km away
Local sunshine: ~934 kWh/kWp · -4% vs LL69
LL71 (Isle of Anglesey)
≈7.5 km away
Local sunshine: ~992 kWh/kWp · +2% vs LL69
LL73 (Isle of Anglesey)
≈7.6 km away
Local sunshine: ~948 kWh/kWp · -3% vs LL69

Similar sunshine across the UK

GL17 (Forest of Dean)
~976 kWh/kWp · -0% vs LL69
LN6 (Lincoln)
~976 kWh/kWp · +0% vs LL69
GL10 (Stroud)
~976 kWh/kWp · +0% vs LL69