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Solar Panels in LL65 (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
11.6 years
After this, it's pure profit
Upfront Cost
£10,173
What you pay to get started
Annual Benefit
£876
What you save every year
Profit Over 25 Years
£11,718
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 1025 kWh/kW — 95 above the regional median (930).

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 1025 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)
1025 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: £876, Upfront: £10,173, 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 2050 kWh 820 kWh 1230 kWh £227 £123 £350 £4,069 11.6 yrs £2,936
3 kW 3075 kWh 1230 kWh 1845 kWh £341 £184 £525 £6,104 11.6 yrs £4,404
4 kW 4099 kWh 1640 kWh 2460 kWh £455 £246 £700 £8,138 11.6 yrs £5,872
5 kW 5124 kWh 2050 kWh 3075 kWh £568 £307 £876 £10,173 11.6 yrs £7,340
6 kW 6149 kWh 2460 kWh 3689 kWh £682 £369 £1,051 £12,207 11.6 yrs £8,808
7 kW 7174 kWh 2870 kWh 4304 kWh £795 £430 £1,226 £14,242 11.6 yrs £10,276
8 kW 8199 kWh 3279 kWh 4919 kWh £909 £492 £1,401 £16,276 11.6 yrs £11,744

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: £1,057, Upfront: £12,273, 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 2050 kWh 1230 kWh 820 kWh £341 £82 £423 £6,169 14.6 yrs £2,289
3 kW 3075 kWh 1845 kWh 1230 kWh £511 £123 £634 £8,204 12.9 yrs £4,483
4 kW 4099 kWh 2460 kWh 1640 kWh £682 £164 £846 £10,238 12.1 yrs £6,678
5 kW 5124 kWh 3075 kWh 2050 kWh £852 £205 £1,057 £12,273 11.6 yrs £8,872
6 kW 6149 kWh 3689 kWh 2460 kWh £1,023 £246 £1,269 £14,307 11.3 yrs £11,066
7 kW 7174 kWh 4304 kWh 2870 kWh £1,193 £287 £1,480 £16,342 11.0 yrs £13,261
8 kW 8199 kWh 4919 kWh 3279 kWh £1,364 £328 £1,692 £18,376 10.9 yrs £15,455

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: £1,148, Upfront: £13,673, 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 2050 kWh 1435 kWh 615 kWh £398 £61 £459 £7,569 16.5 yrs £1,615
3 kW 3075 kWh 2152 kWh 922 kWh £597 £92 £689 £9,604 13.9 yrs £4,173
4 kW 4099 kWh 2870 kWh 1230 kWh £795 £123 £918 £11,638 12.7 yrs £6,730
5 kW 5124 kWh 3587 kWh 1537 kWh £994 £154 £1,148 £13,673 11.9 yrs £9,288
6 kW 6149 kWh 4304 kWh 1845 kWh £1,193 £184 £1,378 £15,707 11.4 yrs £11,846
7 kW 7174 kWh 5022 kWh 2152 kWh £1,392 £215 £1,607 £17,742 11.0 yrs £14,403
8 kW 8199 kWh 5739 kWh 2460 kWh £1,591 £246 £1,837 £19,776 10.8 yrs £16,961

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: £1,175, Upfront: £15,423, Break-even: 13.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2050 kWh 1496 kWh 553 kWh £415 £55 £470 £9,319 19.8 yrs £83
3 kW 3075 kWh 2244 kWh 830 kWh £622 £83 £705 £11,354 16.1 yrs £2,750
4 kW 4099 kWh 2993 kWh 1107 kWh £830 £111 £940 £13,388 14.2 yrs £5,416
5 kW 5124 kWh 3741 kWh 1384 kWh £1,037 £138 £1,175 £15,423 13.1 yrs £8,083
6 kW 6149 kWh 4489 kWh 1660 kWh £1,244 £166 £1,410 £17,457 12.4 yrs £10,749
7 kW 7174 kWh 5237 kWh 1937 kWh £1,452 £194 £1,645 £19,492 11.8 yrs £13,416
8 kW 8199 kWh 5985 kWh 2214 kWh £1,659 £221 £1,880 £21,526 11.4 yrs £16,082

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: £1,193, Upfront: £17,173, Break-even: 14.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2050 kWh 1537 kWh 512 kWh £426 £51 £477 £11,069 23.2 yrs £-1,522
3 kW 3075 kWh 2306 kWh 769 kWh £639 £77 £716 £13,104 18.3 yrs £1,218
4 kW 4099 kWh 3075 kWh 1025 kWh £852 £102 £955 £15,138 15.9 yrs £3,957
5 kW 5124 kWh 3843 kWh 1281 kWh £1,065 £128 £1,193 £17,173 14.4 yrs £6,696
6 kW 6149 kWh 4612 kWh 1537 kWh £1,278 £154 £1,432 £19,207 13.4 yrs £9,435
7 kW 7174 kWh 5380 kWh 1793 kWh £1,491 £179 £1,671 £21,242 12.7 yrs £12,174
8 kW 8199 kWh 6149 kWh 2050 kWh £1,705 £205 £1,909 £23,276 12.2 yrs £14,914

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: £1,212, Upfront: £19,623, 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 2050 kWh 1578 kWh 471 kWh £437 £47 £485 £13,519 27.9 yrs £-3,826
3 kW 3075 kWh 2367 kWh 707 kWh £656 £71 £727 £15,554 21.4 yrs £-1,014
4 kW 4099 kWh 3157 kWh 943 kWh £875 £94 £969 £17,588 18.1 yrs £1,797
5 kW 5124 kWh 3946 kWh 1179 kWh £1,094 £118 £1,212 £19,623 16.2 yrs £4,609
6 kW 6149 kWh 4735 kWh 1414 kWh £1,312 £141 £1,454 £21,657 14.9 yrs £7,421
7 kW 7174 kWh 5524 kWh 1650 kWh £1,531 £165 £1,696 £23,692 14.0 yrs £10,233
8 kW 8199 kWh 6313 kWh 1886 kWh £1,750 £189 £1,939 £25,726 13.3 yrs £13,045

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 LL65

Figures below are tailored to LL65 — click through for full league tables.

Big-Roof Britain Rank #673 of 2182
5.4 kWp (UK avg 5.1 kWp)
~11 panels (≈430 W)
Solar Payback Index Rank #225 of 2997
10.1 years (UK avg 11.3 years)
~£1,012 /yr • £10,173 upfront
Standing-Charge Drag Rank #2258 of 2997
25.2% (UK avg 21.7%) drag on savings
£255 fixed • ~£1,012 /yr value

Your Area at a Glance

Your Electricity Rate
27.72p/kWh
Daily Fixed Charge
69.95p/day
Local Sunshine
1025kWh/kW
A 1 kW system generates ~1025 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

Houses: 62% • Flats: 15% • Bungalows: 22% Based on 9,102 properties

Coverage

Isle of Anglesey (100%)

Areas Covered

Tref Cybi, Ynys Gybi, Bro'r Llynnoedd, Talybolion, Parc a'r Mynydd, Crigyll, Canolbarth Môn

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)
≈10.6 km away
Local sunshine: ~989 kWh/kWp · -3% vs LL65
LL63 (Isle of Anglesey)
≈13.1 km away
Local sunshine: ~996 kWh/kWp · -3% vs LL65
LL66 (Isle of Anglesey)
≈16.2 km away
Local sunshine: ~996 kWh/kWp · -3% vs LL65
LL67 (Isle of Anglesey)
≈16.2 km away
Local sunshine: ~996 kWh/kWp · -3% vs LL65
LL71 (Isle of Anglesey)
≈16.4 km away
Local sunshine: ~992 kWh/kWp · -3% vs LL65
LL62 (Isle of Anglesey)
≈18.7 km away
Local sunshine: ~986 kWh/kWp · -4% vs LL65

Similar sunshine across the UK

DA3 (Sevenoaks)
~1,025 kWh/kWp · +0% vs LL65
DA9 (Dartford)
~1,025 kWh/kWp · -0% vs LL65
CM13 (Brentwood)
~1,025 kWh/kWp · -0% vs LL65