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Solar panel cost in South Hams (TQ10)

See realistic solar installation costs, savings and payback for TQ10 (South Hams) 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
9.5 years
After this, it's pure profit
Upfront Cost
£9,767
What you pay to get started
Annual Benefit
£1,027
What you save every year
Profit Over 25 Years
£15,914
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 1034 kWh/kW — 21 above the regional median (1013).

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 1034 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)
1034 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: £856, Upfront: £8,139, Break-even: 9.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2068 kWh 827 kWh 1241 kWh £218 £124 £342 £3,256 9.5 yrs £3,593
3 kW 3102 kWh 1241 kWh 1861 kWh £327 £186 £514 £4,883 9.5 yrs £5,389
4 kW 4136 kWh 1655 kWh 2482 kWh £437 £248 £685 £6,511 9.5 yrs £7,185
5 kW 5170 kWh 2068 kWh 3102 kWh £546 £310 £856 £8,139 9.5 yrs £8,982
6 kW 6205 kWh 2482 kWh 3723 kWh £655 £372 £1,027 £9,767 9.5 yrs £10,778
7 kW 7239 kWh 2895 kWh 4343 kWh £764 £434 £1,198 £11,394 9.5 yrs £12,574
8 kW 8273 kWh 3309 kWh 4964 kWh £873 £496 £1,370 £13,022 9.5 yrs £14,371

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: £1,026, Upfront: £10,239, Break-even: 10.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2068 kWh 1241 kWh 827 kWh £327 £83 £410 £5,356 13.1 yrs £2,849
3 kW 3102 kWh 1861 kWh 1241 kWh £491 £124 £615 £6,983 11.3 yrs £5,323
4 kW 4136 kWh 2482 kWh 1655 kWh £655 £165 £820 £8,611 10.5 yrs £7,797
5 kW 5170 kWh 3102 kWh 2068 kWh £819 £207 £1,026 £10,239 10.0 yrs £10,271
6 kW 6205 kWh 3723 kWh 2482 kWh £982 £248 £1,231 £11,867 9.6 yrs £12,746
7 kW 7239 kWh 4343 kWh 2895 kWh £1,146 £290 £1,436 £13,494 9.4 yrs £15,220
8 kW 8273 kWh 4964 kWh 3309 kWh £1,310 £331 £1,641 £15,122 9.2 yrs £17,694

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: £1,110, Upfront: £11,639, Break-even: 10.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2068 kWh 1448 kWh 620 kWh £382 £62 £444 £6,756 15.2 yrs £2,126
3 kW 3102 kWh 2172 kWh 931 kWh £573 £93 £666 £8,383 12.6 yrs £4,940
4 kW 4136 kWh 2895 kWh 1241 kWh £764 £124 £888 £10,011 11.3 yrs £7,753
5 kW 5170 kWh 3619 kWh 1551 kWh £955 £155 £1,110 £11,639 10.5 yrs £10,566
6 kW 6205 kWh 4343 kWh 1861 kWh £1,146 £186 £1,332 £13,267 10.0 yrs £13,379
7 kW 7239 kWh 5067 kWh 2172 kWh £1,337 £217 £1,554 £14,894 9.6 yrs £16,193
8 kW 8273 kWh 5791 kWh 2482 kWh £1,528 £248 £1,776 £16,522 9.3 yrs £19,006

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: £1,136, Upfront: £13,389, Break-even: 11.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2068 kWh 1510 kWh 558 kWh £398 £56 £454 £8,506 18.7 yrs £580
3 kW 3102 kWh 2265 kWh 838 kWh £598 £84 £681 £10,133 14.9 yrs £3,495
4 kW 4136 kWh 3020 kWh 1117 kWh £797 £112 £909 £11,761 12.9 yrs £6,410
5 kW 5170 kWh 3774 kWh 1396 kWh £996 £140 £1,136 £13,389 11.8 yrs £9,325
6 kW 6205 kWh 4529 kWh 1675 kWh £1,195 £168 £1,363 £15,017 11.0 yrs £12,240
7 kW 7239 kWh 5284 kWh 1954 kWh £1,395 £195 £1,590 £16,644 10.5 yrs £15,155
8 kW 8273 kWh 6039 kWh 2234 kWh £1,594 £223 £1,817 £18,272 10.1 yrs £18,069

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: £1,153, Upfront: £15,139, 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 2068 kWh 1551 kWh 517 kWh £409 £52 £461 £10,256 22.2 yrs £-1,035
3 kW 3102 kWh 2327 kWh 776 kWh £614 £78 £692 £11,883 17.2 yrs £1,948
4 kW 4136 kWh 3102 kWh 1034 kWh £819 £103 £922 £13,511 14.7 yrs £4,931
5 kW 5170 kWh 3878 kWh 1293 kWh £1,023 £129 £1,153 £15,139 13.1 yrs £7,914
6 kW 6205 kWh 4653 kWh 1551 kWh £1,228 £155 £1,383 £16,767 12.1 yrs £10,896
7 kW 7239 kWh 5429 kWh 1810 kWh £1,433 £181 £1,614 £18,394 11.4 yrs £13,879
8 kW 8273 kWh 6205 kWh 2068 kWh £1,637 £207 £1,844 £20,022 10.9 yrs £16,862

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: £1,170, Upfront: £17,589, Break-even: 15.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2068 kWh 1592 kWh 476 kWh £420 £48 £468 £12,706 27.2 yrs £-3,349
3 kW 3102 kWh 2389 kWh 714 kWh £630 £71 £702 £14,333 20.4 yrs £-298
4 kW 4136 kWh 3185 kWh 951 kWh £841 £95 £936 £15,961 17.1 yrs £2,752
5 kW 5170 kWh 3981 kWh 1189 kWh £1,051 £119 £1,170 £17,589 15.0 yrs £5,803
6 kW 6205 kWh 4777 kWh 1427 kWh £1,261 £143 £1,403 £19,217 13.7 yrs £8,853
7 kW 7239 kWh 5574 kWh 1665 kWh £1,471 £166 £1,637 £20,844 12.7 yrs £11,904
8 kW 8273 kWh 6370 kWh 1903 kWh £1,681 £190 £1,871 £22,472 12.0 yrs £14,954

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 South Hams

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 TQ10

Figures below are tailored to TQ10 — click through for full league tables.

Big-Roof Britain Rank #509 of 2182
5.6 kWp (UK avg 5.1 kWp)
~12 panels (≈430 W)
Solar Payback Index Rank #336 of 2996
9.5 years (UK avg 10.8 years)
~£1,027 /yr • £9,767 upfront
Standing-Charge Drag Rank #661 of 2996
20.5% (UK avg 26.6%) drag on savings
£211 fixed • ~£1,027 /yr value
Aspect Penalty View ranking →
East −18.9% West −20.3%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in TQ10

Monthly generation per kilowatt of solar panels

kWh 40 Jan 54 Feb 89 Mar 119 Apr 127 May 127 Jun 124 Jul 115 Aug 94 Sep 65 Oct 46 Nov 34 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 49.7% of an average month (Dec–Feb)

Best / worst month: Jun / 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 86 kWh. So a typical 4 kW home system would generate roughly 171 kWh in winter, or 345 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
26.39p/kWh
Daily Fixed Charge
57.89p/day
Local Sunshine
1034kWh/kW
A 1 kW system generates ~1034 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: 71% • Flats: 10% • Bungalows: 18% Based on 1,128 properties

Coverage

South Hams (100%)

Areas Covered

South Brent, Ermington & Ugborough, Totnes

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

TQ11 (Teignbridge)
≈7.1 km away
Local sunshine: ~1,029 kWh/kWp · -0% vs TQ10
PL21 (South Hams)
≈7.6 km away
Local sunshine: ~1,086 kWh/kWp · +5% vs TQ10
TQ9 (South Hams)
≈10.3 km away
Local sunshine: ~1,058 kWh/kWp · +2% vs TQ10
PL7 (Plymouth)
≈16.0 km away
Local sunshine: ~1,081 kWh/kWp · +4% vs TQ10
TQ7 (South Hams)
≈16.2 km away
Local sunshine: ~1,123 kWh/kWp · +9% vs TQ10
PL8 (South Hams)
≈16.2 km away
Local sunshine: ~1,081 kWh/kWp · +4% vs TQ10

Similar sunshine across the UK

ME8 (Medway)
~1,034 kWh/kWp · +0% vs TQ10
TN10 (Tonbridge and Malling)
~1,034 kWh/kWp · -0% vs TQ10
PE24 (East Lindsey)
~1,034 kWh/kWp · +0% vs TQ10