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Solar panel cost in Cumberland (CA27)

See realistic solar installation costs, savings and payback for CA27 (Cumberland) 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
£937
What you save every year
Profit Over 25 Years
£13,647
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 North West, the current unit rate is 26.13p/kWh with a 47.61p/day standing charge. Your postcode’s south-facing sunshine yield is 949 kWh/kW — 79 above the regional median (870).

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 949 kWh per year on a south-facing roof. We value self-used electricity at 26.1p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
26.1p/kWh
Standing charge
47.6p/day
Sunshine yield (south)
949 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: £780, 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 1898 kWh 759 kWh 1139 kWh £198 £114 £312 £3,256 10.4 yrs £2,988
3 kW 2846 kWh 1139 kWh 1708 kWh £297 £171 £468 £4,883 10.4 yrs £4,482
4 kW 3795 kWh 1518 kWh 2277 kWh £397 £228 £624 £6,511 10.4 yrs £5,976
5 kW 4744 kWh 1898 kWh 2846 kWh £496 £285 £780 £8,139 10.4 yrs £7,471
6 kW 5693 kWh 2277 kWh 3416 kWh £595 £342 £937 £9,767 10.4 yrs £8,965
7 kW 6641 kWh 2657 kWh 3985 kWh £694 £398 £1,093 £11,394 10.4 yrs £10,459
8 kW 7590 kWh 3036 kWh 4554 kWh £793 £455 £1,249 £13,022 10.4 yrs £11,953

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: £934, Upfront: £10,239, Break-even: 11.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1898 kWh 1139 kWh 759 kWh £297 £76 £373 £5,356 14.3 yrs £2,113
3 kW 2846 kWh 1708 kWh 1139 kWh £446 £114 £560 £6,983 12.5 yrs £4,219
4 kW 3795 kWh 2277 kWh 1518 kWh £595 £152 £747 £8,611 11.5 yrs £6,325
5 kW 4744 kWh 2846 kWh 1898 kWh £744 £190 £934 £10,239 11.0 yrs £8,431
6 kW 5693 kWh 3416 kWh 2277 kWh £892 £228 £1,120 £11,867 10.6 yrs £10,538
7 kW 6641 kWh 3985 kWh 2657 kWh £1,041 £266 £1,307 £13,494 10.3 yrs £12,644
8 kW 7590 kWh 4554 kWh 3036 kWh £1,190 £304 £1,494 £15,122 10.1 yrs £14,750

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: £1,010, Upfront: £11,639, 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 1898 kWh 1328 kWh 569 kWh £347 £57 £404 £6,756 16.7 yrs £1,325
3 kW 2846 kWh 1992 kWh 854 kWh £521 £85 £606 £8,383 13.8 yrs £3,737
4 kW 3795 kWh 2657 kWh 1139 kWh £694 £114 £808 £10,011 12.4 yrs £6,149
5 kW 4744 kWh 3321 kWh 1423 kWh £868 £142 £1,010 £11,639 11.5 yrs £8,562
6 kW 5693 kWh 3985 kWh 1708 kWh £1,041 £171 £1,212 £13,267 10.9 yrs £10,974
7 kW 6641 kWh 4649 kWh 1992 kWh £1,215 £199 £1,414 £14,894 10.5 yrs £13,386
8 kW 7590 kWh 5313 kWh 2277 kWh £1,388 £228 £1,616 £16,522 10.2 yrs £15,799

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: £1,033, Upfront: £13,389, Break-even: 13.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1898 kWh 1385 kWh 512 kWh £362 £51 £413 £8,506 20.6 yrs £-242
3 kW 2846 kWh 2078 kWh 769 kWh £543 £77 £620 £10,133 16.3 yrs £2,262
4 kW 3795 kWh 2770 kWh 1025 kWh £724 £102 £826 £11,761 14.2 yrs £4,767
5 kW 4744 kWh 3463 kWh 1281 kWh £905 £128 £1,033 £13,389 13.0 yrs £7,271
6 kW 5693 kWh 4156 kWh 1537 kWh £1,086 £154 £1,240 £15,017 12.1 yrs £9,775
7 kW 6641 kWh 4848 kWh 1793 kWh £1,267 £179 £1,446 £16,644 11.5 yrs £12,279
8 kW 7590 kWh 5541 kWh 2049 kWh £1,448 £205 £1,653 £18,272 11.1 yrs £14,783

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: £1,048, Upfront: £15,139, Break-even: 14.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1898 kWh 1423 kWh 474 kWh £372 £47 £419 £10,256 24.5 yrs £-1,869
3 kW 2846 kWh 2135 kWh 712 kWh £558 £71 £629 £11,883 18.9 yrs £696
4 kW 3795 kWh 2846 kWh 949 kWh £744 £95 £839 £13,511 16.1 yrs £3,261
5 kW 4744 kWh 3558 kWh 1186 kWh £930 £119 £1,048 £15,139 14.4 yrs £5,827
6 kW 5693 kWh 4270 kWh 1423 kWh £1,116 £142 £1,258 £16,767 13.3 yrs £8,392
7 kW 6641 kWh 4981 kWh 1660 kWh £1,302 £166 £1,468 £18,394 12.5 yrs £10,958
8 kW 7590 kWh 5693 kWh 1898 kWh £1,487 £190 £1,677 £20,022 11.9 yrs £13,523

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: £1,064, Upfront: £17,589, Break-even: 16.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1898 kWh 1461 kWh 436 kWh £382 £44 £425 £12,706 29.9 yrs £-4,197
3 kW 2846 kWh 2192 kWh 655 kWh £573 £65 £638 £14,333 22.5 yrs £-1,570
4 kW 3795 kWh 2922 kWh 873 kWh £764 £87 £851 £15,961 18.8 yrs £1,056
5 kW 4744 kWh 3653 kWh 1091 kWh £954 £109 £1,064 £17,589 16.5 yrs £3,683
6 kW 5693 kWh 4383 kWh 1309 kWh £1,145 £131 £1,276 £19,217 15.1 yrs £6,310
7 kW 6641 kWh 5114 kWh 1528 kWh £1,336 £153 £1,489 £20,844 14.0 yrs £8,936
8 kW 7590 kWh 5844 kWh 1746 kWh £1,527 £175 £1,702 £22,472 13.2 yrs £11,563

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 Cumberland

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

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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 CA27

Figures below are tailored to CA27 — click through for full league tables.

Big-Roof Britain Rank #114 of 2182
6.5 kWp (UK avg 5.1 kWp)
~14 panels (≈430 W)
Solar Payback Index Rank #1438 of 2996
10.4 years (UK avg 10.8 years)
~£937 /yr • £9,767 upfront
Standing-Charge Drag Rank #304 of 2996
18.6% (UK avg 26.6%) drag on savings
£174 fixed • ~£937 /yr value
Aspect Penalty View ranking →
East −20.8% West −23.9%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in CA27

Monthly generation per kilowatt of solar panels

kWh 27 Jan 47 Feb 81 Mar 116 Apr 130 May 123 Jun 121 Jul 109 Aug 84 Sep 53 Oct 33 Nov 23 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 41.1% 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 33 kWh per month; the average month produces around 79 kWh. So a typical 4 kW home system would generate roughly 130 kWh in winter, or 316 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
26.13p/kWh
Daily Fixed Charge
47.61p/day
Local Sunshine
949kWh/kW
A 1 kW system generates ~949 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: 11% • Bungalows: 17% Based on 341 properties

Coverage

Cumberland (100%)

Areas Covered

Egremont North and St Bees, Egremont

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 West

CA22 (Cumberland)
≈4.1 km away
Local sunshine: ~938 kWh/kWp · -1% vs CA27
CA24 (Cumberland)
≈4.1 km away
Local sunshine: ~894 kWh/kWp · -6% vs CA27
CA23 (Cumberland)
≈5.7 km away
Local sunshine: ~892 kWh/kWp · -6% vs CA27
CA25 (Cumberland)
≈5.9 km away
Local sunshine: ~893 kWh/kWp · -6% vs CA27
CA28 (Cumberland)
≈5.9 km away
Local sunshine: ~920 kWh/kWp · -3% vs CA27
CA21 (Cumberland)
≈7.1 km away
Local sunshine: ~950 kWh/kWp · +0% vs CA27

Similar sunshine across the UK

S21 (North East Derbyshire)
~949 kWh/kWp · -0% vs CA27
HR2 (Herefordshire, County of)
~949 kWh/kWp · +0% vs CA27
DY12 (Wyre Forest)
~949 kWh/kWp · -0% vs CA27