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Solar panel cost in Somerset (TA6)

See realistic solar installation costs, savings and payback for TA6 (Somerset) 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
10.8 years
After this, it's pure profit
Upfront Cost
£7,307
What you pay to get started
Annual Benefit
£675
What you save every year
Profit Over 25 Years
£9,575
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 Southern Western, the current unit rate is 26.39p/kWh with a 57.89p/day standing charge. Your postcode’s south-facing sunshine yield is 1020 kWh/kW — 6 above the regional median (1013).

Read the full story

A typical roof here lands around 4.0 kW, with most eligible homes comfortably fitting within 3–6 kW. Each kilowatt of panels produces roughly 1020 kWh per year on a south-facing roof. We value self-used electricity at 26.4p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
26.4p/kWh
Standing charge
57.9p/day
Sunshine yield (south)
1020 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: £844, Upfront: £9,134, 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 2039 kWh 816 kWh 1224 kWh £215 £122 £338 £3,654 10.8 yrs £3,099
3 kW 3059 kWh 1224 kWh 1836 kWh £323 £184 £506 £5,481 10.8 yrs £4,649
4 kW 4079 kWh 1632 kWh 2447 kWh £431 £245 £675 £7,307 10.8 yrs £6,199
5 kW 5099 kWh 2039 kWh 3059 kWh £538 £306 £844 £9,134 10.8 yrs £7,748
6 kW 6118 kWh 2447 kWh 3671 kWh £646 £367 £1,013 £10,961 10.8 yrs £9,298
7 kW 7138 kWh 2855 kWh 4283 kWh £753 £428 £1,182 £12,788 10.8 yrs £10,848
8 kW 8158 kWh 3263 kWh 4895 kWh £861 £489 £1,351 £14,615 10.8 yrs £12,398

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,827, battery £/kWh = 700.

3 kWh battery 5 kW example → Annual benefit: £1,011, Upfront: £11,234, Break-even: 11.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2039 kWh 1224 kWh 816 kWh £323 £82 £405 £5,754 14.2 yrs £2,336
3 kW 3059 kWh 1836 kWh 1224 kWh £484 £122 £607 £7,581 12.5 yrs £4,555
4 kW 4079 kWh 2447 kWh 1632 kWh £646 £163 £809 £9,407 11.6 yrs £6,773
5 kW 5099 kWh 3059 kWh 2039 kWh £807 £204 £1,011 £11,234 11.1 yrs £8,991
6 kW 6118 kWh 3671 kWh 2447 kWh £969 £245 £1,214 £13,061 10.8 yrs £11,209
7 kW 7138 kWh 4283 kWh 2855 kWh £1,130 £286 £1,416 £14,888 10.5 yrs £13,428
8 kW 8158 kWh 4895 kWh 3263 kWh £1,292 £326 £1,618 £16,715 10.3 yrs £15,646

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,827, battery £/kWh = 700.

5 kWh battery 5 kW example → Annual benefit: £1,095, Upfront: £12,634, Break-even: 11.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2039 kWh 1428 kWh 612 kWh £377 £61 £438 £7,154 16.3 yrs £1,605
3 kW 3059 kWh 2141 kWh 918 kWh £565 £92 £657 £8,981 13.7 yrs £4,157
4 kW 4079 kWh 2855 kWh 1224 kWh £753 £122 £876 £10,807 12.3 yrs £6,710
5 kW 5099 kWh 3569 kWh 1530 kWh £942 £153 £1,095 £12,634 11.5 yrs £9,262
6 kW 6118 kWh 4283 kWh 1836 kWh £1,130 £184 £1,314 £14,461 11.0 yrs £11,815
7 kW 7138 kWh 4997 kWh 2141 kWh £1,319 £214 £1,533 £16,288 10.6 yrs £14,367
8 kW 8158 kWh 5710 kWh 2447 kWh £1,507 £245 £1,752 £18,115 10.3 yrs £16,920

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,827, battery £/kWh = 700.

7.5 kWh battery 5 kW example → Annual benefit: £1,120, Upfront: £14,384, Break-even: 12.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2039 kWh 1489 kWh 551 kWh £393 £55 £448 £8,904 19.9 yrs £56
3 kW 3059 kWh 2233 kWh 826 kWh £589 £83 £672 £10,731 16.0 yrs £2,708
4 kW 4079 kWh 2978 kWh 1101 kWh £786 £110 £896 £12,557 14.0 yrs £5,361
5 kW 5099 kWh 3722 kWh 1377 kWh £982 £138 £1,120 £14,384 12.8 yrs £8,014
6 kW 6118 kWh 4466 kWh 1652 kWh £1,179 £165 £1,344 £16,211 12.1 yrs £10,667
7 kW 7138 kWh 5211 kWh 1927 kWh £1,375 £193 £1,568 £18,038 11.5 yrs £13,319
8 kW 8158 kWh 5955 kWh 2203 kWh £1,572 £220 £1,792 £19,865 11.1 yrs £15,972

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,827, battery £/kWh = 700.

10 kWh battery 5 kW example → Annual benefit: £1,137, Upfront: £16,134, 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 2039 kWh 1530 kWh 510 kWh £404 £51 £455 £10,654 23.4 yrs £-1,561
3 kW 3059 kWh 2294 kWh 765 kWh £605 £76 £682 £12,481 18.3 yrs £1,159
4 kW 4079 kWh 3059 kWh 1020 kWh £807 £102 £909 £14,307 15.7 yrs £3,879
5 kW 5099 kWh 3824 kWh 1275 kWh £1,009 £127 £1,137 £16,134 14.2 yrs £6,598
6 kW 6118 kWh 4589 kWh 1530 kWh £1,211 £153 £1,364 £17,961 13.2 yrs £9,318
7 kW 7138 kWh 5354 kWh 1785 kWh £1,413 £178 £1,591 £19,788 12.4 yrs £12,037
8 kW 8158 kWh 6118 kWh 2039 kWh £1,615 £204 £1,819 £21,615 11.9 yrs £14,757

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,827, battery £/kWh = 700.

13.5 kWh battery 5 kW example → Annual benefit: £1,153, Upfront: £18,584, Break-even: 16.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2039 kWh 1570 kWh 469 kWh £414 £47 £461 £13,104 28.4 yrs £-3,877
3 kW 3059 kWh 2356 kWh 704 kWh £622 £70 £692 £14,931 21.6 yrs £-1,091
4 kW 4079 kWh 3141 kWh 938 kWh £829 £94 £923 £16,757 18.2 yrs £1,696
5 kW 5099 kWh 3926 kWh 1173 kWh £1,036 £117 £1,153 £18,584 16.1 yrs £4,482
6 kW 6118 kWh 4711 kWh 1407 kWh £1,243 £141 £1,384 £20,411 14.7 yrs £7,269
7 kW 7138 kWh 5496 kWh 1642 kWh £1,450 £164 £1,615 £22,238 13.8 yrs £10,055
8 kW 8158 kWh 6282 kWh 1876 kWh £1,658 £188 £1,845 £24,065 13.0 yrs £12,842

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,827, 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 Somerset

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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Check what MCS certification means

Understand DNO, G98 and G99 export limits

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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.

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Insights for TA6

Figures below are tailored to TA6 — click through for full league tables.

Big-Roof Britain Rank #1824 of 2182
4.4 kWp (UK avg 5.1 kWp)
~9 panels (≈430 W)
Solar Payback Index Rank #1823 of 2996
10.8 years (UK avg 10.8 years)
~£675 /yr • £7,307 upfront
Standing-Charge Drag Rank #2285 of 2996
31.3% (UK avg 26.6%) drag on savings
£211 fixed • ~£675 /yr value
Aspect Penalty View ranking →
East −20.2% West −20.6%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in TA6

Monthly generation per kilowatt of solar panels

kWh 40 Jan 55 Feb 90 Mar 117 Apr 127 May 121 Jun 123 Jul 109 Aug 94 Sep 67 Oct 45 Nov 33 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 50.4% 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 43 kWh per month; the average month produces around 85 kWh. So a typical 4 kW home system would generate roughly 171 kWh in winter, or 340 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
26.39p/kWh
Daily Fixed Charge
57.89p/day
Local Sunshine
1020kWh/kW
A 1 kW system generates ~1020 kWh per year. A typical home uses ~2,700 kWh per year.
Typical System Size
4.0kW
For houses & bungalows in this area

Local Property Data

Property Types

Houses: 71% • Flats: 21% • Bungalows: 7% Based on 16,209 properties

Coverage

Somerset (100%)

Areas Covered

Bridgwater South, Bridgwater North & Central, Bridgwater East & Bawdrip, Bridgwater West, North Petherton, Cannington, Huntspill

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 Southern Western

TA7 (Somerset)
≈5.6 km away
Local sunshine: ~1,015 kWh/kWp · -0% vs TA6
TA5 (Somerset)
≈5.7 km away
Local sunshine: ~1,024 kWh/kWp · +0% vs TA6
TA9 (Somerset)
≈11.0 km away
Local sunshine: ~1,028 kWh/kWp · +1% vs TA6
TA8 (Somerset)
≈12.4 km away
Local sunshine: ~1,028 kWh/kWp · +1% vs TA6
TA2 (Somerset)
≈12.7 km away
Local sunshine: ~1,000 kWh/kWp · -2% vs TA6
TA1 (Somerset)
≈14.3 km away
Local sunshine: ~1,000 kWh/kWp · -2% vs TA6

Similar sunshine across the UK

PE12 (South Holland)
~1,020 kWh/kWp · -0% vs TA6
GU27 (Waverley)
~1,020 kWh/kWp · +0% vs TA6
BA8 (Somerset)
~1,020 kWh/kWp · -0% vs TA6