Independent solar numbers for your postcode using official UK data
Home Regions Guides
Insights
Big Roof Britain Solar Payback Index Standing Charge Drag Roof Direction Penalty Winter Solar Reality

Solar panel cost in Westmorland and Furness (CA11)

See realistic solar installation costs, savings and payback for CA11 (Westmorland and Furness) 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
13.3 years
After this, it's pure profit
Upfront Cost
£12,207
What you pay to get started
Annual Benefit
£915
What you save every year
Profit Over 25 Years
£10,660
After paying itself off, you're this much ahead

Ready to Get Started?

Get your free quote from Blue Ape Renewables. They'll connect you with MCS-certified installers in your area and handle all the paperwork.

Get Solar Quote →
4.8★ Trustpilot • Octopus Energy trusted partner • MCS certified • No obligation
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 28.45p/kWh with a 52.22p/day standing charge. Your postcode’s south-facing sunshine yield is 877 kWh/kW — 7 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 877 kWh per year on a south-facing roof. We value self-used electricity at 28.4p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
28.4p/kWh
Standing charge
52.2p/day
Sunshine yield (south)
877 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: £762, Upfront: £10,173, Break-even: 13.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1754 kWh 702 kWh 1053 kWh £200 £105 £305 £4,069 13.3 yrs £2,029
3 kW 2631 kWh 1053 kWh 1579 kWh £299 £158 £457 £6,104 13.3 yrs £3,043
4 kW 3509 kWh 1403 kWh 2105 kWh £399 £211 £610 £8,138 13.3 yrs £4,058
5 kW 4386 kWh 1754 kWh 2631 kWh £499 £263 £762 £10,173 13.3 yrs £5,072
6 kW 5263 kWh 2105 kWh 3158 kWh £599 £316 £915 £12,207 13.3 yrs £6,087
7 kW 6140 kWh 2456 kWh 3684 kWh £699 £368 £1,067 £14,242 13.3 yrs £7,101
8 kW 7017 kWh 2807 kWh 4210 kWh £799 £421 £1,220 £16,276 13.3 yrs £8,116

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: £924, Upfront: £12,273, Break-even: 13.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1754 kWh 1053 kWh 702 kWh £299 £70 £370 £6,169 16.7 yrs £1,224
3 kW 2631 kWh 1579 kWh 1053 kWh £449 £105 £554 £8,204 14.8 yrs £2,885
4 kW 3509 kWh 2105 kWh 1403 kWh £599 £140 £739 £10,238 13.8 yrs £4,547
5 kW 4386 kWh 2631 kWh 1754 kWh £749 £175 £924 £12,273 13.3 yrs £6,209
6 kW 5263 kWh 3158 kWh 2105 kWh £898 £211 £1,109 £14,307 12.9 yrs £7,871
7 kW 6140 kWh 3684 kWh 2456 kWh £1,048 £246 £1,294 £16,342 12.6 yrs £9,533
8 kW 7017 kWh 4210 kWh 2807 kWh £1,198 £281 £1,479 £18,376 12.4 yrs £11,194

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: £1,005, Upfront: £13,673, Break-even: 13.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1754 kWh 1228 kWh 526 kWh £349 £53 £402 £7,569 18.8 yrs £471
3 kW 2631 kWh 1842 kWh 789 kWh £524 £79 £603 £9,604 15.9 yrs £2,456
4 kW 3509 kWh 2456 kWh 1053 kWh £699 £105 £804 £11,638 14.5 yrs £4,442
5 kW 4386 kWh 3070 kWh 1316 kWh £873 £132 £1,005 £13,673 13.6 yrs £6,427
6 kW 5263 kWh 3684 kWh 1579 kWh £1,048 £158 £1,206 £15,707 13.0 yrs £8,413
7 kW 6140 kWh 4298 kWh 1842 kWh £1,223 £184 £1,407 £17,742 12.6 yrs £10,398
8 kW 7017 kWh 4912 kWh 2105 kWh £1,397 £211 £1,608 £19,776 12.3 yrs £12,384

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: £1,029, Upfront: £15,423, 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 1754 kWh 1281 kWh 474 kWh £364 £47 £412 £9,319 22.6 yrs £-1,085
3 kW 2631 kWh 1921 kWh 710 kWh £547 £71 £618 £11,354 18.4 yrs £998
4 kW 3509 kWh 2561 kWh 947 kWh £729 £95 £823 £13,388 16.3 yrs £3,080
5 kW 4386 kWh 3202 kWh 1184 kWh £911 £118 £1,029 £15,423 15.0 yrs £5,163
6 kW 5263 kWh 3842 kWh 1421 kWh £1,093 £142 £1,235 £17,457 14.1 yrs £7,245
7 kW 6140 kWh 4482 kWh 1658 kWh £1,275 £166 £1,441 £19,492 13.5 yrs £9,328
8 kW 7017 kWh 5123 kWh 1895 kWh £1,457 £189 £1,647 £21,526 13.1 yrs £11,411

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: £1,045, Upfront: £17,173, Break-even: 16.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1754 kWh 1316 kWh 439 kWh £374 £44 £418 £11,069 26.5 yrs £-2,705
3 kW 2631 kWh 1974 kWh 658 kWh £561 £66 £627 £13,104 20.9 yrs £-558
4 kW 3509 kWh 2631 kWh 877 kWh £749 £88 £836 £15,138 18.1 yrs £1,589
5 kW 4386 kWh 3289 kWh 1096 kWh £936 £110 £1,045 £17,173 16.4 yrs £3,737
6 kW 5263 kWh 3947 kWh 1316 kWh £1,123 £132 £1,255 £19,207 15.3 yrs £5,884
7 kW 6140 kWh 4605 kWh 1535 kWh £1,310 £154 £1,464 £21,242 14.5 yrs £8,031
8 kW 7017 kWh 5263 kWh 1754 kWh £1,497 £175 £1,673 £23,276 13.9 yrs £10,178

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: £1,062, Upfront: £19,623, Break-even: 18.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1754 kWh 1351 kWh 403 kWh £384 £40 £425 £13,519 31.8 yrs £-5,026
3 kW 2631 kWh 2026 kWh 605 kWh £576 £61 £637 £15,554 24.4 yrs £-2,814
4 kW 3509 kWh 2702 kWh 807 kWh £769 £81 £849 £17,588 20.7 yrs £-602
5 kW 4386 kWh 3377 kWh 1009 kWh £961 £101 £1,062 £19,623 18.5 yrs £1,610
6 kW 5263 kWh 4052 kWh 1210 kWh £1,153 £121 £1,274 £21,657 17.0 yrs £3,822
7 kW 6140 kWh 4728 kWh 1412 kWh £1,345 £141 £1,486 £23,692 15.9 yrs £6,034
8 kW 7017 kWh 5403 kWh 1614 kWh £1,537 £161 £1,699 £25,726 15.1 yrs £8,246

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 CA11

Figures below are tailored to CA11 — click through for full league tables.

Big-Roof Britain Rank #841 of 2182
5.2 kWp (UK avg 5.1 kWp)
~11 panels (≈430 W)
Solar Payback Index Rank #2294 of 2997
13.3 years (UK avg 12.6 years)
~£915 /yr • £12,207 upfront
Standing-Charge Drag Rank #1113 of 2997
20.8% (UK avg 24.6%) drag on savings
£191 fixed • ~£915 /yr value
Aspect Penalty View ranking →
East −19.8% West −19.6%
Typical output loss versus a south-facing roof (lower is better)

Your Area at a Glance

Your Electricity Rate
28.45p/kWh
Daily Fixed Charge
52.22p/day
Local Sunshine
877kWh/kW
A 1 kW system generates ~877 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: 67% • Flats: 20% • Bungalows: 13% Based on 7,819 properties

Coverage

Westmorland and Furness (100%)

Areas Covered

Penrith South, Penrith North, Greystoke and Ullswater, Hesket and Lazonby, Alston and Fellside

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

CA10 (Westmorland and Furness)
≈6.9 km away
Local sunshine: ~865 kWh/kWp · -1% vs CA11
CA16 (Westmorland and Furness)
≈19.6 km away
Local sunshine: ~855 kWh/kWp · -3% vs CA11
CA4 (Cumberland)
≈23.2 km away
Local sunshine: ~875 kWh/kWp · -0% vs CA11
CA12 (Cumberland)
≈25.5 km away
Local sunshine: ~767 kWh/kWp · -13% vs CA11
CA9 (Westmorland and Furness)
≈26.1 km away
Local sunshine: ~803 kWh/kWp · -8% vs CA11
CA1 (Cumberland)
≈27.3 km away
Local sunshine: ~886 kWh/kWp · +1% vs CA11

Similar sunshine across the UK

KA26 (South Ayrshire)
~877 kWh/kWp · -0% vs CA11
BD22 (Bradford)
~877 kWh/kWp · -0% vs CA11
LL35 (Gwynedd)
~877 kWh/kWp · -0% vs CA11