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Solar panel cost in Isle of Anglesey (LL76)

See realistic solar installation costs, savings and payback for LL76 (Isle of Anglesey) 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
10.2 years
After this, it's pure profit
Upfront Cost
£9,767
What you pay to get started
Annual Benefit
£955
What you save every year
Profit Over 25 Years
£14,120
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 North Wales and Mersey, the current unit rate is 27.66p/kWh with a 70.76p/day standing charge. Your postcode’s south-facing sunshine yield is 933 kWh/kW — 3 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 933 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
70.8p/day
Sunshine yield (south)
933 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: £796, Upfront: £8,139, Break-even: 10.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1866 kWh 747 kWh 1120 kWh £207 £112 £318 £3,256 10.2 yrs £3,114
3 kW 2800 kWh 1120 kWh 1680 kWh £310 £168 £478 £4,883 10.2 yrs £4,672
4 kW 3733 kWh 1493 kWh 2240 kWh £413 £224 £637 £6,511 10.2 yrs £6,229
5 kW 4666 kWh 1866 kWh 2800 kWh £516 £280 £796 £8,139 10.2 yrs £7,786
6 kW 5599 kWh 2240 kWh 3360 kWh £620 £336 £955 £9,767 10.2 yrs £9,343
7 kW 6533 kWh 2613 kWh 3920 kWh £723 £392 £1,115 £11,394 10.2 yrs £10,900
8 kW 7466 kWh 2986 kWh 4480 kWh £826 £448 £1,274 £13,022 10.2 yrs £12,457

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: £961, Upfront: £10,239, Break-even: 10.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1866 kWh 1120 kWh 747 kWh £310 £75 £384 £5,356 13.9 yrs £2,333
3 kW 2800 kWh 1680 kWh 1120 kWh £465 £112 £577 £6,983 12.1 yrs £4,549
4 kW 3733 kWh 2240 kWh 1493 kWh £620 £149 £769 £8,611 11.2 yrs £6,766
5 kW 4666 kWh 2800 kWh 1866 kWh £774 £187 £961 £10,239 10.7 yrs £8,982
6 kW 5599 kWh 3360 kWh 2240 kWh £929 £224 £1,153 £11,867 10.3 yrs £11,198
7 kW 6533 kWh 3920 kWh 2613 kWh £1,084 £261 £1,345 £13,494 10.0 yrs £13,415
8 kW 7466 kWh 4480 kWh 2986 kWh £1,239 £299 £1,538 £15,122 9.8 yrs £15,631

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: £1,043, Upfront: £11,639, Break-even: 11.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1866 kWh 1307 kWh 560 kWh £361 £56 £417 £6,756 16.2 yrs £1,592
3 kW 2800 kWh 1960 kWh 840 kWh £542 £84 £626 £8,383 13.4 yrs £4,138
4 kW 3733 kWh 2613 kWh 1120 kWh £723 £112 £835 £10,011 12.0 yrs £6,684
5 kW 4666 kWh 3266 kWh 1400 kWh £903 £140 £1,043 £11,639 11.2 yrs £9,230
6 kW 5599 kWh 3920 kWh 1680 kWh £1,084 £168 £1,252 £13,267 10.6 yrs £11,776
7 kW 6533 kWh 4573 kWh 1960 kWh £1,265 £196 £1,461 £14,894 10.2 yrs £14,322
8 kW 7466 kWh 5226 kWh 2240 kWh £1,446 £224 £1,670 £16,522 9.9 yrs £16,868

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: £1,068, Upfront: £13,389, 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 1866 kWh 1363 kWh 504 kWh £377 £50 £427 £8,506 19.9 yrs £40
3 kW 2800 kWh 2044 kWh 756 kWh £565 £76 £641 £10,133 15.8 yrs £2,685
4 kW 3733 kWh 2725 kWh 1008 kWh £754 £101 £855 £11,761 13.8 yrs £5,330
5 kW 4666 kWh 3406 kWh 1260 kWh £942 £126 £1,068 £13,389 12.5 yrs £7,975
6 kW 5599 kWh 4088 kWh 1512 kWh £1,131 £151 £1,282 £15,017 11.7 yrs £10,619
7 kW 6533 kWh 4769 kWh 1764 kWh £1,319 £176 £1,495 £16,644 11.1 yrs £13,264
8 kW 7466 kWh 5450 kWh 2016 kWh £1,507 £202 £1,709 £18,272 10.7 yrs £15,909

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: £1,085, Upfront: £15,139, Break-even: 14.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1866 kWh 1400 kWh 467 kWh £387 £47 £434 £10,256 23.6 yrs £-1,578
3 kW 2800 kWh 2100 kWh 700 kWh £581 £70 £651 £11,883 18.3 yrs £1,132
4 kW 3733 kWh 2800 kWh 933 kWh £774 £93 £868 £13,511 15.6 yrs £3,843
5 kW 4666 kWh 3500 kWh 1167 kWh £968 £117 £1,085 £15,139 14.0 yrs £6,554
6 kW 5599 kWh 4200 kWh 1400 kWh £1,162 £140 £1,302 £16,767 12.9 yrs £9,265
7 kW 6533 kWh 4899 kWh 1633 kWh £1,355 £163 £1,519 £18,394 12.1 yrs £11,976
8 kW 7466 kWh 5599 kWh 1866 kWh £1,549 £187 £1,735 £20,022 11.5 yrs £14,687

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: £1,101, Upfront: £17,589, Break-even: 16.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1866 kWh 1437 kWh 429 kWh £398 £43 £440 £12,706 28.8 yrs £-3,897
3 kW 2800 kWh 2156 kWh 644 kWh £596 £64 £661 £14,333 21.7 yrs £-1,120
4 kW 3733 kWh 2874 kWh 859 kWh £795 £86 £881 £15,961 18.1 yrs £1,657
5 kW 4666 kWh 3593 kWh 1073 kWh £994 £107 £1,101 £17,589 16.0 yrs £4,434
6 kW 5599 kWh 4312 kWh 1288 kWh £1,193 £129 £1,321 £19,217 14.5 yrs £7,210
7 kW 6533 kWh 5030 kWh 1503 kWh £1,391 £150 £1,542 £20,844 13.5 yrs £9,987
8 kW 7466 kWh 5749 kWh 1717 kWh £1,590 £172 £1,762 £22,472 12.8 yrs £12,764

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 Isle of Anglesey

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 LL76

Figures below are tailored to LL76 — click through for full league tables.

Big-Roof Britain Rank #54 of 2182
7.0 kWp (UK avg 5.1 kWp)
~15 panels (≈430 W)
Solar Payback Index Rank #1294 of 2996
10.2 years (UK avg 10.8 years)
~£955 /yr • £9,767 upfront
Standing-Charge Drag Rank #1741 of 2996
27.0% (UK avg 26.6%) drag on savings
£258 fixed • ~£955 /yr value
Aspect Penalty View ranking →
East −18.9% West −22.0%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in LL76

Monthly generation per kilowatt of solar panels

kWh 32 Jan 50 Feb 82 Mar 109 Apr 124 May 119 Jun 113 Jul 102 Aug 82 Sep 58 Oct 35 Nov 26 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 46.0% 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 36 kWh per month; the average month produces around 78 kWh. So a typical 4 kW home system would generate roughly 143 kWh in winter, or 311 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
27.66p/kWh
Daily Fixed Charge
70.76p/day
Local Sunshine
933kWh/kW
A 1 kW system generates ~933 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: 80% • Flats: 0% • Bungalows: 20% Based on 64 properties

Coverage

Isle of Anglesey (100%)

Areas Covered

Lligwy, Canolbarth Môn

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 North Wales and Mersey

LL74 (Isle of Anglesey)
≈2.1 km away
Local sunshine: ~932 kWh/kWp · -0% vs LL76
LL75 (Isle of Anglesey)
≈2.4 km away
Local sunshine: ~931 kWh/kWp · -0% vs LL76
LL78 (Isle of Anglesey)
≈2.5 km away
Local sunshine: ~947 kWh/kWp · +1% vs LL76
LL73 (Isle of Anglesey)
≈3.9 km away
Local sunshine: ~948 kWh/kWp · +2% vs LL76
LL72 (Isle of Anglesey)
≈5.8 km away
Local sunshine: ~934 kWh/kWp · +0% vs LL76
LL77 (Isle of Anglesey)
≈6.8 km away
Local sunshine: ~966 kWh/kWp · +3% vs LL76

Similar sunshine across the UK

B67 (Sandwell)
~933 kWh/kWp · +0% vs LL76
S40 (Chesterfield)
~933 kWh/kWp · -0% vs LL76
S49 (Chesterfield)
~933 kWh/kWp · -0% vs LL76