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Solar panel cost in Cumberland (CA25)

See realistic solar installation costs, savings and payback for CA25 (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
15.0 years
After this, it's pure profit
Upfront Cost
£8,138
What you pay to get started
Annual Benefit
£544
What you save every year
Profit Over 25 Years
£5,452
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: 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 North West, the current unit rate is 23.04p/kWh with a 46.92p/day standing charge. Your postcode’s south-facing sunshine yield is 893 kWh/kW — 23 above the regional median (870).

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 893 kWh per year on a south-facing roof. We value self-used electricity at 23.0p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
23.0p/kWh
Standing charge
46.9p/day
Sunshine yield (south)
893 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: £679, Upfront: £10,173, 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 1786 kWh 714 kWh 1072 kWh £165 £107 £272 £4,069 15.0 yrs £1,367
3 kW 2679 kWh 1072 kWh 1608 kWh £247 £161 £408 £6,104 15.0 yrs £2,050
4 kW 3572 kWh 1429 kWh 2143 kWh £329 £214 £544 £8,138 15.0 yrs £2,734
5 kW 4466 kWh 1786 kWh 2679 kWh £412 £268 £679 £10,173 15.0 yrs £3,417
6 kW 5359 kWh 2143 kWh 3215 kWh £494 £322 £815 £12,207 15.0 yrs £4,100
7 kW 6252 kWh 2501 kWh 3751 kWh £576 £375 £951 £14,242 15.0 yrs £4,784
8 kW 7145 kWh 2858 kWh 4287 kWh £658 £429 £1,087 £16,276 15.0 yrs £5,467

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: £796, Upfront: £12,273, Break-even: 15.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1786 kWh 1072 kWh 714 kWh £247 £71 £318 £6,169 19.4 yrs £198
3 kW 2679 kWh 1608 kWh 1072 kWh £370 £107 £478 £8,204 17.2 yrs £1,348
4 kW 3572 kWh 2143 kWh 1429 kWh £494 £143 £637 £10,238 16.1 yrs £2,497
5 kW 4466 kWh 2679 kWh 1786 kWh £617 £179 £796 £12,273 15.4 yrs £3,646
6 kW 5359 kWh 3215 kWh 2143 kWh £741 £214 £955 £14,307 15.0 yrs £4,795
7 kW 6252 kWh 3751 kWh 2501 kWh £864 £250 £1,114 £16,342 14.7 yrs £5,945
8 kW 7145 kWh 4287 kWh 2858 kWh £988 £286 £1,274 £18,376 14.4 yrs £7,094

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: £854, Upfront: £13,673, Break-even: 16.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1786 kWh 1250 kWh 536 kWh £288 £54 £342 £7,569 22.2 yrs £-736
3 kW 2679 kWh 1876 kWh 804 kWh £432 £80 £513 £9,604 18.7 yrs £647
4 kW 3572 kWh 2501 kWh 1072 kWh £576 £107 £683 £11,638 17.0 yrs £2,029
5 kW 4466 kWh 3126 kWh 1340 kWh £720 £134 £854 £13,673 16.0 yrs £3,411
6 kW 5359 kWh 3751 kWh 1608 kWh £864 £161 £1,025 £15,707 15.3 yrs £4,793
7 kW 6252 kWh 4376 kWh 1876 kWh £1,008 £188 £1,196 £17,742 14.8 yrs £6,175
8 kW 7145 kWh 5001 kWh 2143 kWh £1,152 £214 £1,367 £19,776 14.5 yrs £7,557

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: £872, Upfront: £15,423, Break-even: 17.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1786 kWh 1304 kWh 482 kWh £300 £48 £349 £9,319 26.7 yrs £-2,346
3 kW 2679 kWh 1956 kWh 723 kWh £451 £72 £523 £11,354 21.7 yrs £-894
4 kW 3572 kWh 2608 kWh 965 kWh £601 £96 £697 £13,388 19.2 yrs £558
5 kW 4466 kWh 3260 kWh 1206 kWh £751 £121 £872 £15,423 17.7 yrs £2,010
6 kW 5359 kWh 3912 kWh 1447 kWh £901 £145 £1,046 £17,457 16.7 yrs £3,462
7 kW 6252 kWh 4564 kWh 1688 kWh £1,051 £169 £1,220 £19,492 16.0 yrs £4,914
8 kW 7145 kWh 5216 kWh 1929 kWh £1,202 £193 £1,395 £21,526 15.4 yrs £6,366

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: £883, Upfront: £17,173, Break-even: 19.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1786 kWh 1340 kWh 447 kWh £309 £45 £353 £11,069 31.3 yrs £-4,003
3 kW 2679 kWh 2009 kWh 670 kWh £463 £67 £530 £13,104 24.7 yrs £-2,504
4 kW 3572 kWh 2679 kWh 893 kWh £617 £89 £707 £15,138 21.4 yrs £-1,005
5 kW 4466 kWh 3349 kWh 1116 kWh £772 £112 £883 £17,173 19.4 yrs £493
6 kW 5359 kWh 4019 kWh 1340 kWh £926 £134 £1,060 £19,207 18.1 yrs £1,992
7 kW 6252 kWh 4689 kWh 1563 kWh £1,080 £156 £1,237 £21,242 17.2 yrs £3,490
8 kW 7145 kWh 5359 kWh 1786 kWh £1,235 £179 £1,413 £23,276 16.5 yrs £4,989

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: £895, Upfront: £19,623, Break-even: 21.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1786 kWh 1375 kWh 411 kWh £317 £41 £358 £13,519 37.8 yrs £-6,360
3 kW 2679 kWh 2063 kWh 616 kWh £475 £62 £537 £15,554 29.0 yrs £-4,814
4 kW 3572 kWh 2751 kWh 822 kWh £634 £82 £716 £17,588 24.6 yrs £-3,269
5 kW 4466 kWh 3438 kWh 1027 kWh £792 £103 £895 £19,623 21.9 yrs £-1,724
6 kW 5359 kWh 4126 kWh 1232 kWh £951 £123 £1,074 £21,657 20.2 yrs £-179
7 kW 6252 kWh 4814 kWh 1438 kWh £1,109 £144 £1,253 £23,692 18.9 yrs £1,367
8 kW 7145 kWh 5502 kWh 1643 kWh £1,268 £164 £1,432 £25,726 18.0 yrs £2,912

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 CA25

Figures below are tailored to CA25 — click through for full league tables.

Big-Roof Britain Rank #1211 of 2182
4.9 kWp (UK avg 5.1 kWp)
~10 panels (≈430 W)
Solar Payback Index Rank #2092 of 2997
13.1 years (UK avg 12.6 years)
~£621 /yr • £8,138 upfront
Standing-Charge Drag Rank #2414 of 2997
30.7% (UK avg 24.6%) drag on savings
£191 fixed • ~£621 /yr value
Aspect Penalty View ranking →
East −19.7% West −21.4%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in CA25

Monthly generation per kilowatt of solar panels

kWh 25 Jan 45 Feb 77 Mar 111 Apr 124 May 117 Jun 113 Jul 99 Aug 78 Sep 50 Oct 33 Nov 21 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 40.9% 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 30 kWh per month; the average month produces around 74 kWh. So a typical 4 kW home system would generate roughly 122 kWh in winter, or 298 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
23.04p/kWh
Daily Fixed Charge
46.92p/day
Local Sunshine
893kWh/kW
A 1 kW system generates ~893 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: 83% • Flats: 6% • Bungalows: 11% Based on 1,633 properties

Coverage

Cumberland (100%)

Areas Covered

Cleator Moor West, Cleator Moor East and Frizington, Hillcrest and Hensingham, Egremont

Data Sources & Assumptions

Solar yield: PVGIS (EU Joint Research Centre), January 2025 data

Electricity rates: Ofgem price cap, Q1 2026

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 North West

CA23 (Cumberland)
≈1.1 km away
Local sunshine: ~892 kWh/kWp · -0% vs CA25
CA24 (Cumberland)
≈1.7 km away
Local sunshine: ~894 kWh/kWp · +0% vs CA25
CA26 (Cumberland)
≈2.9 km away
Local sunshine: ~868 kWh/kWp · -3% vs CA25
CA22 (Cumberland)
≈4.7 km away
Local sunshine: ~938 kWh/kWp · +5% vs CA25
CA28 (Cumberland)
≈4.8 km away
Local sunshine: ~920 kWh/kWp · +3% vs CA25
CA27 (Cumberland)
≈5.9 km away
Local sunshine: ~949 kWh/kWp · +6% vs CA25

Similar sunshine across the UK

BT2 (Belfast)
~893 kWh/kWp · -0% vs CA25
SA44 (Ceredigion)
~893 kWh/kWp · +0% vs CA25
BT7 (Belfast)
~893 kWh/kWp · -0% vs CA25