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Solar panel cost in North Devon (EX35)

See realistic solar installation costs, savings and payback for EX35 (North Devon) 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
11.2 years
After this, it's pure profit
Upfront Cost
£9,767
What you pay to get started
Annual Benefit
£870
What you save every year
Profit Over 25 Years
£11,990
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 876 kWh/kW — 137 below 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 876 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)
876 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: £725, Upfront: £8,139, 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 1752 kWh 701 kWh 1051 kWh £185 £105 £290 £3,256 11.2 yrs £2,546
3 kW 2628 kWh 1051 kWh 1577 kWh £277 £158 £435 £4,883 11.2 yrs £3,819
4 kW 3504 kWh 1402 kWh 2103 kWh £370 £210 £580 £6,511 11.2 yrs £5,092
5 kW 4380 kWh 1752 kWh 2628 kWh £462 £263 £725 £8,139 11.2 yrs £6,365
6 kW 5256 kWh 2103 kWh 3154 kWh £555 £315 £870 £9,767 11.2 yrs £7,638
7 kW 6132 kWh 2453 kWh 3679 kWh £647 £368 £1,015 £11,394 11.2 yrs £8,912
8 kW 7009 kWh 2803 kWh 4205 kWh £740 £421 £1,160 £13,022 11.2 yrs £10,185

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: £869, Upfront: £10,239, 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 1752 kWh 1051 kWh 701 kWh £277 £70 £348 £5,356 15.4 yrs £1,595
3 kW 2628 kWh 1577 kWh 1051 kWh £416 £105 £521 £6,983 13.4 yrs £3,442
4 kW 3504 kWh 2103 kWh 1402 kWh £555 £140 £695 £8,611 12.4 yrs £5,290
5 kW 4380 kWh 2628 kWh 1752 kWh £694 £175 £869 £10,239 11.8 yrs £7,137
6 kW 5256 kWh 3154 kWh 2103 kWh £832 £210 £1,043 £11,867 11.4 yrs £8,985
7 kW 6132 kWh 3679 kWh 2453 kWh £971 £245 £1,216 £13,494 11.1 yrs £10,832
8 kW 7009 kWh 4205 kWh 2803 kWh £1,110 £280 £1,390 £15,122 10.9 yrs £12,679

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: £941, Upfront: £11,639, Break-even: 12.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1752 kWh 1226 kWh 526 kWh £324 £53 £376 £6,756 18.0 yrs £769
3 kW 2628 kWh 1840 kWh 788 kWh £486 £79 £564 £8,383 14.9 yrs £2,904
4 kW 3504 kWh 2453 kWh 1051 kWh £647 £105 £752 £10,011 13.3 yrs £5,038
5 kW 4380 kWh 3066 kWh 1314 kWh £809 £131 £941 £11,639 12.4 yrs £7,173
6 kW 5256 kWh 3679 kWh 1577 kWh £971 £158 £1,129 £13,267 11.8 yrs £9,308
7 kW 6132 kWh 4293 kWh 1840 kWh £1,133 £184 £1,317 £14,894 11.3 yrs £11,442
8 kW 7009 kWh 4906 kWh 2103 kWh £1,295 £210 £1,505 £16,522 11.0 yrs £13,577

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: £962, Upfront: £13,389, Break-even: 13.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1752 kWh 1279 kWh 473 kWh £338 £47 £385 £8,506 22.1 yrs £-808
3 kW 2628 kWh 1919 kWh 710 kWh £506 £71 £577 £10,133 17.6 yrs £1,412
4 kW 3504 kWh 2558 kWh 946 kWh £675 £95 £770 £11,761 15.3 yrs £3,633
5 kW 4380 kWh 3198 kWh 1183 kWh £844 £118 £962 £13,389 13.9 yrs £5,854
6 kW 5256 kWh 3837 kWh 1419 kWh £1,013 £142 £1,155 £15,017 13.0 yrs £8,075
7 kW 6132 kWh 4477 kWh 1656 kWh £1,181 £166 £1,347 £16,644 12.4 yrs £10,295
8 kW 7009 kWh 5116 kWh 1892 kWh £1,350 £189 £1,539 £18,272 11.9 yrs £12,516

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: £976, Upfront: £15,139, Break-even: 15.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1752 kWh 1314 kWh 438 kWh £347 £44 £391 £10,256 26.3 yrs £-2,444
3 kW 2628 kWh 1971 kWh 657 kWh £520 £66 £586 £11,883 20.3 yrs £-165
4 kW 3504 kWh 2628 kWh 876 kWh £694 £88 £781 £13,511 17.3 yrs £2,113
5 kW 4380 kWh 3285 kWh 1095 kWh £867 £110 £976 £15,139 15.5 yrs £4,391
6 kW 5256 kWh 3942 kWh 1314 kWh £1,040 £131 £1,172 £16,767 14.3 yrs £6,669
7 kW 6132 kWh 4599 kWh 1533 kWh £1,214 £153 £1,367 £18,394 13.5 yrs £8,947
8 kW 7009 kWh 5256 kWh 1752 kWh £1,387 £175 £1,562 £20,022 12.8 yrs £11,226

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: £991, Upfront: £17,589, Break-even: 17.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1752 kWh 1349 kWh 403 kWh £356 £40 £396 £12,706 32.1 yrs £-4,779
3 kW 2628 kWh 2024 kWh 604 kWh £534 £60 £595 £14,333 24.1 yrs £-2,443
4 kW 3504 kWh 2698 kWh 806 kWh £712 £81 £793 £15,961 20.1 yrs £-107
5 kW 4380 kWh 3373 kWh 1007 kWh £890 £101 £991 £17,589 17.8 yrs £2,228
6 kW 5256 kWh 4047 kWh 1209 kWh £1,068 £121 £1,189 £19,217 16.2 yrs £4,564
7 kW 6132 kWh 4722 kWh 1410 kWh £1,246 £141 £1,387 £20,844 15.0 yrs £6,899
8 kW 7009 kWh 5397 kWh 1612 kWh £1,424 £161 £1,585 £22,472 14.2 yrs £9,235

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 North Devon

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 EX35

Figures below are tailored to EX35 — click through for full league tables.

Big-Roof Britain Rank #558 of 2182
5.5 kWp (UK avg 5.1 kWp)
~11 panels (≈430 W)
Solar Payback Index Rank #2146 of 2996
11.2 years (UK avg 10.8 years)
~£870 /yr • £9,767 upfront
Standing-Charge Drag Rank #1285 of 2996
24.3% (UK avg 26.6%) drag on savings
£211 fixed • ~£870 /yr value
Aspect Penalty View ranking →
East −14.5% West −15.3%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in EX35

Monthly generation per kilowatt of solar panels

kWh 9 Jan 36 Feb 81 Mar 117 Apr 126 May 119 Jun 120 Jul 107 Aug 87 Sep 52 Oct 15 Nov 8 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 24.0% 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 18 kWh per month; the average month produces around 73 kWh. So a typical 4 kW home system would generate roughly 70 kWh in winter, or 292 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
26.39p/kWh
Daily Fixed Charge
57.89p/day
Local Sunshine
876kWh/kW
A 1 kW system generates ~876 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: 57% • Flats: 23% • Bungalows: 13% Based on 708 properties

Coverage

North Devon (99%)|Somerset (1%)

Areas Covered

Lynton & Lynmouth, Dulverton & Exmoor

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

EX34 (North Devon)
≈20.1 km away
Local sunshine: ~950 kWh/kWp · +8% vs EX35
EX32 (North Devon)
≈22.3 km away
Local sunshine: ~971 kWh/kWp · +11% vs EX35
EX31 (North Devon)
≈23.4 km away
Local sunshine: ~986 kWh/kWp · +13% vs EX35
EX36 (North Devon)
≈23.5 km away
Local sunshine: ~966 kWh/kWp · +10% vs EX35
TA24 (Somerset)
≈24.9 km away
Local sunshine: ~992 kWh/kWp · +13% vs EX35
EX33 (North Devon)
≈26.4 km away
Local sunshine: ~1,020 kWh/kWp · +16% vs EX35

Similar sunshine across the UK

BL5 (Bolton)
~876 kWh/kWp · +0% vs EX35
LD3 (Powys)
~876 kWh/kWp · -0% vs EX35
EH29 (City of Edinburgh)
~876 kWh/kWp · -0% vs EX35