Solar explained to clever people by people who are not trying to be clever
Home Regions
Insights
Big Roof Britain Solar Payback Index Standing Charge Drag

Solar Panels in SA67 (Pembrokeshire)

See if solar pays off for you in Pembrokeshire — 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
12.5 years
After this, it's pure profit
Upfront Cost
£12,207
What you pay to get started
Annual Benefit
£975
What you save every year
Profit Over 25 Years
£12,178
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: 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 South Wales, the current unit rate is 26.83p/kWh with a 51.69p/day standing charge. Your postcode’s south-facing sunshine yield is 972 kWh/kW — 3 above the regional median (968).

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 972 kWh per year on a south-facing roof. We value self-used electricity at 26.8p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
26.8p/kWh
Standing charge
51.7p/day
Sunshine yield (south)
972 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: £813, Upfront: £10,173, 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 1943 kWh 777 kWh 1166 kWh £209 £117 £325 £4,069 12.5 yrs £2,434
3 kW 2915 kWh 1166 kWh 1749 kWh £313 £175 £488 £6,104 12.5 yrs £3,651
4 kW 3886 kWh 1555 kWh 2332 kWh £417 £233 £650 £8,138 12.5 yrs £4,868
5 kW 4858 kWh 1943 kWh 2915 kWh £521 £291 £813 £10,173 12.5 yrs £6,084
6 kW 5830 kWh 2332 kWh 3498 kWh £626 £350 £975 £12,207 12.5 yrs £7,301
7 kW 6801 kWh 2721 kWh 4081 kWh £730 £408 £1,138 £14,242 12.5 yrs £8,518
8 kW 7773 kWh 3109 kWh 4664 kWh £834 £466 £1,301 £16,276 12.5 yrs £9,735

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: £976, Upfront: £12,273, Break-even: 12.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1943 kWh 1166 kWh 777 kWh £313 £78 £391 £6,169 15.8 yrs £1,642
3 kW 2915 kWh 1749 kWh 1166 kWh £469 £117 £586 £8,204 14.0 yrs £3,513
4 kW 3886 kWh 2332 kWh 1555 kWh £626 £155 £781 £10,238 13.1 yrs £5,384
5 kW 4858 kWh 2915 kWh 1943 kWh £782 £194 £976 £12,273 12.6 yrs £7,255
6 kW 5830 kWh 3498 kWh 2332 kWh £938 £233 £1,172 £14,307 12.2 yrs £9,126
7 kW 6801 kWh 4081 kWh 2721 kWh £1,095 £272 £1,367 £16,342 12.0 yrs £10,997
8 kW 7773 kWh 4664 kWh 3109 kWh £1,251 £311 £1,562 £18,376 11.8 yrs £12,868

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: £1,058, Upfront: £13,673, Break-even: 12.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1943 kWh 1360 kWh 583 kWh £365 £58 £423 £7,569 17.9 yrs £896
3 kW 2915 kWh 2040 kWh 874 kWh £547 £87 £635 £9,604 15.1 yrs £3,094
4 kW 3886 kWh 2721 kWh 1166 kWh £730 £117 £847 £11,638 13.7 yrs £5,292
5 kW 4858 kWh 3401 kWh 1457 kWh £912 £146 £1,058 £13,673 12.9 yrs £7,490
6 kW 5830 kWh 4081 kWh 1749 kWh £1,095 £175 £1,270 £15,707 12.4 yrs £9,688
7 kW 6801 kWh 4761 kWh 2040 kWh £1,277 £204 £1,481 £17,742 12.0 yrs £11,886
8 kW 7773 kWh 5441 kWh 2332 kWh £1,460 £233 £1,693 £19,776 11.7 yrs £14,084

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: £1,083, Upfront: £15,423, 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 1943 kWh 1419 kWh 525 kWh £381 £52 £433 £9,319 21.5 yrs £-658
3 kW 2915 kWh 2128 kWh 787 kWh £571 £79 £650 £11,354 17.5 yrs £1,638
4 kW 3886 kWh 2837 kWh 1049 kWh £761 £105 £866 £13,388 15.5 yrs £3,935
5 kW 4858 kWh 3546 kWh 1312 kWh £951 £131 £1,083 £15,423 14.2 yrs £6,231
6 kW 5830 kWh 4256 kWh 1574 kWh £1,142 £157 £1,299 £17,457 13.4 yrs £8,527
7 kW 6801 kWh 4965 kWh 1836 kWh £1,332 £184 £1,516 £19,492 12.9 yrs £10,823
8 kW 7773 kWh 5674 kWh 2099 kWh £1,522 £210 £1,732 £21,526 12.4 yrs £13,119

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: £1,099, Upfront: £17,173, Break-even: 15.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1943 kWh 1457 kWh 486 kWh £391 £49 £440 £11,069 25.2 yrs £-2,277
3 kW 2915 kWh 2186 kWh 729 kWh £587 £73 £659 £13,104 19.9 yrs £85
4 kW 3886 kWh 2915 kWh 972 kWh £782 £97 £879 £15,138 17.2 yrs £2,446
5 kW 4858 kWh 3644 kWh 1215 kWh £978 £121 £1,099 £17,173 15.6 yrs £4,808
6 kW 5830 kWh 4372 kWh 1457 kWh £1,173 £146 £1,319 £19,207 14.6 yrs £7,169
7 kW 6801 kWh 5101 kWh 1700 kWh £1,369 £170 £1,539 £21,242 13.8 yrs £9,531
8 kW 7773 kWh 5830 kWh 1943 kWh £1,564 £194 £1,758 £23,276 13.2 yrs £11,892

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: £1,115, Upfront: £19,623, Break-even: 17.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1943 kWh 1496 kWh 447 kWh £401 £45 £446 £13,519 30.3 yrs £-4,596
3 kW 2915 kWh 2244 kWh 670 kWh £602 £67 £669 £15,554 23.2 yrs £-2,169
4 kW 3886 kWh 2993 kWh 894 kWh £803 £89 £892 £17,588 19.7 yrs £258
5 kW 4858 kWh 3741 kWh 1117 kWh £1,004 £112 £1,115 £19,623 17.6 yrs £2,685
6 kW 5830 kWh 4489 kWh 1341 kWh £1,204 £134 £1,338 £21,657 16.2 yrs £5,112
7 kW 6801 kWh 5237 kWh 1564 kWh £1,405 £156 £1,562 £23,692 15.2 yrs £7,539
8 kW 7773 kWh 5985 kWh 1788 kWh £1,606 £179 £1,785 £25,726 14.4 yrs £9,966

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 SA67

Figures below are tailored to SA67 — click through for full league tables.

Big-Roof Britain Rank #70 of 2182
6.8 kWp (UK avg 5.1 kWp)
~14 panels (≈430 W)
Solar Payback Index Rank #1174 of 2997
10.9 years (UK avg 11.3 years)
~£1,123 /yr • £12,207 upfront
Standing-Charge Drag Rank #678 of 2997
16.8% (UK avg 21.7%) drag on savings
£189 fixed • ~£1,123 /yr value

Your Area at a Glance

Your Electricity Rate
26.83p/kWh
Daily Fixed Charge
51.69p/day
Local Sunshine
972kWh/kW
A 1 kW system generates ~972 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: 60% • Flats: 10% • Bungalows: 30% Based on 2,302 properties

Coverage

Pembrokeshire (100%)

Areas Covered

Narberth: Urban, Martletwy, Narberth: Rural, Amroth and Saundersfoot North, Lampeter Velfrey, Kilgetty and Begelly, Wiston, Laugharne Township + 2 more

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 South Wales

SA68 (Pembrokeshire)
≈7.4 km away
Local sunshine: ~1,014 kWh/kWp · +4% vs SA67
SA66 (Pembrokeshire)
≈8.1 km away
Local sunshine: ~957 kWh/kWp · -2% vs SA67
SA34 (Carmarthenshire)
≈9.9 km away
Local sunshine: ~995 kWh/kWp · +2% vs SA67
SA69 (Pembrokeshire)
≈9.9 km away
Local sunshine: ~1,014 kWh/kWp · +4% vs SA67
SA63 (Pembrokeshire)
≈11.2 km away
Local sunshine: ~979 kWh/kWp · +1% vs SA67
SA70 (Pembrokeshire)
≈14.1 km away
Local sunshine: ~995 kWh/kWp · +2% vs SA67

Similar sunshine across the UK

NG12 (Rushcliffe)
~971 kWh/kWp · -0% vs SA67
WR14 (Malvern Hills)
~972 kWh/kWp · +0% vs SA67
EX32 (North Devon)
~971 kWh/kWp · -0% vs SA67