Independent solar numbers for your postcode using official UK data
Home Regions Guides Compare quotes Solar assistant
Insights
Big Roof Britain Solar Payback Index Standing Charge Drag Roof Direction Penalty Winter Solar Reality Seasonal Solar Output

Solar panel cost in Denbighshire (LL19)

See realistic solar installation costs, savings and payback for LL19 (Denbighshire) 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
10.4 years
After this, it's pure profit
Upfront Cost
£9,767
What you pay to get started
Annual Benefit
£940
What you save every year
Profit Over 25 Years
£13,743
After paying itself off, you're this much ahead

Ready to Get Started?

Get your free quote from Blue Ape Renewables. They'll connect you with MCS-certified installers in your area and handle all the paperwork.

Get Solar Quote →
4.8★ Trustpilot • Octopus Energy trusted partner • MCS certified • No obligation
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 918 kWh/kW — 11 below 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 918 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)
918 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: £784, Upfront: £8,139, Break-even: 10.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1837 kWh 735 kWh 1102 kWh £203 £110 £313 £3,256 10.4 yrs £3,014
3 kW 2756 kWh 1102 kWh 1653 kWh £305 £165 £470 £4,883 10.4 yrs £4,521
4 kW 3674 kWh 1470 kWh 2204 kWh £406 £220 £627 £6,511 10.4 yrs £6,028
5 kW 4592 kWh 1837 kWh 2756 kWh £508 £276 £784 £8,139 10.4 yrs £7,534
6 kW 5511 kWh 2204 kWh 3307 kWh £610 £331 £940 £9,767 10.4 yrs £9,041
7 kW 6430 kWh 2572 kWh 3858 kWh £711 £386 £1,097 £11,394 10.4 yrs £10,548
8 kW 7348 kWh 2939 kWh 4409 kWh £813 £441 £1,254 £13,022 10.4 yrs £12,055

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: £946, Upfront: £10,239, Break-even: 10.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1837 kWh 1102 kWh 735 kWh £305 £73 £378 £5,356 14.2 yrs £2,211
3 kW 2756 kWh 1653 kWh 1102 kWh £457 £110 £568 £6,983 12.3 yrs £4,367
4 kW 3674 kWh 2204 kWh 1470 kWh £610 £147 £757 £8,611 11.4 yrs £6,523
5 kW 4592 kWh 2756 kWh 1837 kWh £762 £184 £946 £10,239 10.8 yrs £8,679
6 kW 5511 kWh 3307 kWh 2204 kWh £915 £220 £1,135 £11,867 10.5 yrs £10,834
7 kW 6430 kWh 3858 kWh 2572 kWh £1,067 £257 £1,324 £13,494 10.2 yrs £12,990
8 kW 7348 kWh 4409 kWh 2939 kWh £1,219 £294 £1,513 £15,122 10.0 yrs £15,146

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: £1,027, Upfront: £11,639, Break-even: 11.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1837 kWh 1286 kWh 551 kWh £356 £55 £411 £6,756 16.4 yrs £1,460
3 kW 2756 kWh 1929 kWh 827 kWh £534 £83 £616 £8,383 13.6 yrs £3,940
4 kW 3674 kWh 2572 kWh 1102 kWh £711 £110 £822 £10,011 12.2 yrs £6,421
5 kW 4592 kWh 3215 kWh 1378 kWh £889 £138 £1,027 £11,639 11.3 yrs £8,901
6 kW 5511 kWh 3858 kWh 1653 kWh £1,067 £165 £1,232 £13,267 10.8 yrs £11,381
7 kW 6430 kWh 4501 kWh 1929 kWh £1,245 £193 £1,438 £14,894 10.4 yrs £13,861
8 kW 7348 kWh 5144 kWh 2204 kWh £1,423 £220 £1,643 £16,522 10.1 yrs £16,341

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: £1,051, Upfront: £13,389, Break-even: 12.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1837 kWh 1341 kWh 496 kWh £371 £50 £421 £8,506 20.2 yrs £-95
3 kW 2756 kWh 2012 kWh 744 kWh £556 £74 £631 £10,133 16.1 yrs £2,482
4 kW 3674 kWh 2682 kWh 992 kWh £742 £99 £841 £11,761 14.0 yrs £5,060
5 kW 4592 kWh 3353 kWh 1240 kWh £927 £124 £1,051 £13,389 12.7 yrs £7,637
6 kW 5511 kWh 4023 kWh 1488 kWh £1,113 £149 £1,262 £15,017 11.9 yrs £10,215
7 kW 6430 kWh 4694 kWh 1736 kWh £1,298 £174 £1,472 £16,644 11.3 yrs £12,792
8 kW 7348 kWh 5364 kWh 1984 kWh £1,484 £198 £1,682 £18,272 10.9 yrs £15,370

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: £1,068, Upfront: £15,139, Break-even: 14.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1837 kWh 1378 kWh 459 kWh £381 £46 £427 £10,256 24.0 yrs £-1,715
3 kW 2756 kWh 2067 kWh 689 kWh £572 £69 £641 £11,883 18.6 yrs £927
4 kW 3674 kWh 2756 kWh 918 kWh £762 £92 £854 £13,511 15.8 yrs £3,569
5 kW 4592 kWh 3444 kWh 1148 kWh £953 £115 £1,068 £15,139 14.2 yrs £6,212
6 kW 5511 kWh 4133 kWh 1378 kWh £1,143 £138 £1,281 £16,767 13.1 yrs £8,854
7 kW 6430 kWh 4822 kWh 1607 kWh £1,334 £161 £1,495 £18,394 12.3 yrs £11,496
8 kW 7348 kWh 5511 kWh 1837 kWh £1,524 £184 £1,708 £20,022 11.7 yrs £14,139

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: £1,084, Upfront: £17,589, 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 1837 kWh 1414 kWh 423 kWh £391 £42 £433 £12,706 29.3 yrs £-4,036
3 kW 2756 kWh 2122 kWh 634 kWh £587 £63 £650 £14,333 22.0 yrs £-1,328
4 kW 3674 kWh 2829 kWh 845 kWh £782 £85 £867 £15,961 18.4 yrs £1,379
5 kW 4592 kWh 3536 kWh 1056 kWh £978 £106 £1,084 £17,589 16.2 yrs £4,086
6 kW 5511 kWh 4243 kWh 1268 kWh £1,174 £127 £1,300 £19,217 14.8 yrs £6,793
7 kW 6430 kWh 4951 kWh 1479 kWh £1,369 £148 £1,517 £20,844 13.7 yrs £9,501
8 kW 7348 kWh 5658 kWh 1690 kWh £1,565 £169 £1,734 £22,472 13.0 yrs £12,208

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 Denbighshire

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.

Compare solar quotes before you sign

Check what MCS certification means

Understand DNO, G98 and G99 export limits

New quote check

Want a quote sanity check for LL19?

Share the first part of your postcode and a few basics. We’ll help you check whether system size, battery, export and paperwork assumptions look sensible before you commit to installer conversations.

This is a practical sanity-check request, not an instant quote promise. The Blue Ape quote route above remains available if you already want installer introductions.

Request a quote sanity check →

Insights for LL19

Figures below are tailored to LL19 — click through for full league tables.

Big-Roof Britain Rank #484 of 2182
5.6 kWp (UK avg 5.1 kWp)
~12 panels (≈430 W)
Solar Payback Index Rank #1477 of 2996
10.4 years (UK avg 10.8 years)
~£940 /yr • £9,767 upfront
Standing-Charge Drag Rank #1793 of 2996
27.4% (UK avg 26.6%) drag on savings
£258 fixed • ~£940 /yr value
Aspect Penalty View ranking →
East −19.0% West −21.8%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in LL19

Monthly generation per kilowatt of solar panels

kWh 30 Jan 48 Feb 81 Mar 109 Apr 121 May 116 Jun 112 Jul 101 Aug 82 Sep 57 Oct 35 Nov 26 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 45.5% 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 35 kWh per month; the average month produces around 77 kWh. So a typical 4 kW home system would generate roughly 139 kWh in winter, or 306 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
27.66p/kWh
Daily Fixed Charge
70.76p/day
Local Sunshine
918kWh/kW
A 1 kW system generates ~918 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: 48% • Flats: 13% • Bungalows: 38% Based on 5,514 properties

Coverage

Denbighshire (94%)|Flintshire (6%)

Areas Covered

Prestatyn East, Prestatyn North, Prestatyn Central, Prestatyn South West, Prestatyn Meliden, Llanasa and Trelawnyd, Rhyl South West

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

LL18 (Denbighshire)
≈5.3 km away
Local sunshine: ~933 kWh/kWp · +2% vs LL19
LL17 (Denbighshire)
≈8.9 km away
Local sunshine: ~924 kWh/kWp · +1% vs LL19
LL22 (Conwy)
≈12.8 km away
Local sunshine: ~949 kWh/kWp · +3% vs LL19
CH8 (Flintshire)
≈13.6 km away
Local sunshine: ~925 kWh/kWp · +1% vs LL19
CH48 (Wirral)
≈16.2 km away
Local sunshine: ~953 kWh/kWp · +4% vs LL19
L48 (Wirral)
≈16.3 km away
Local sunshine: ~953 kWh/kWp · +4% vs LL19

Similar sunshine across the UK

HD5 (Kirklees)
~918 kWh/kWp · -0% vs LL19
NE16 (Gateshead)
~919 kWh/kWp · +0% vs LL19
BT18 (Ards and North Down)
~918 kWh/kWp · -0% vs LL19