Solar panel cost in Central Bedfordshire (SG19)

See realistic solar installation costs, savings and payback for SG19 (Central Bedfordshire) 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
9.8 years
After this, it's pure profit
Upfront Cost
£8,139
What you pay to get started
Annual Benefit
£830
What you save every year
Profit Over 25 Years
£12,599
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

Read the full story

A typical roof here lands around 5.0 kW, with most eligible homes comfortably fitting within 3–6 kW. Each kilowatt of panels produces roughly 1002 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
53.9p/day
Sunshine yield (south)
1002 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: £830, Upfront: £8,139, Break-even: 9.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2005 kWh 802 kWh 1203 kWh £212 £120 £332 £3,256 9.8 yrs £3,381
3 kW 3007 kWh 1203 kWh 1804 kWh £317 £180 £498 £4,883 9.8 yrs £5,071
4 kW 4009 kWh 1604 kWh 2406 kWh £423 £241 £664 £6,511 9.8 yrs £6,761
5 kW 5012 kWh 2005 kWh 3007 kWh £529 £301 £830 £8,139 9.8 yrs £8,452
6 kW 6014 kWh 2406 kWh 3608 kWh £635 £361 £995 £9,767 9.8 yrs £10,142
7 kW 7016 kWh 2807 kWh 4210 kWh £740 £421 £1,161 £11,394 9.8 yrs £11,832
8 kW 8019 kWh 3207 kWh 4811 kWh £846 £481 £1,327 £13,022 9.8 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.

3 kWh battery 5 kW example → Annual benefit: £994, Upfront: £10,239, Break-even: 10.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2005 kWh 1203 kWh 802 kWh £317 £80 £397 £5,356 13.5 yrs £2,594
3 kW 3007 kWh 1804 kWh 1203 kWh £476 £120 £596 £6,983 11.7 yrs £4,941
4 kW 4009 kWh 2406 kWh 1604 kWh £635 £160 £795 £8,611 10.8 yrs £7,288
5 kW 5012 kWh 3007 kWh 2005 kWh £793 £200 £994 £10,239 10.3 yrs £9,635
6 kW 6014 kWh 3608 kWh 2406 kWh £952 £241 £1,192 £11,867 10.0 yrs £11,982
7 kW 7016 kWh 4210 kWh 2807 kWh £1,111 £281 £1,391 £13,494 9.7 yrs £14,330
8 kW 8019 kWh 4811 kWh 3207 kWh £1,269 £321 £1,590 £15,122 9.5 yrs £16,677

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: £1,076, Upfront: £11,639, Break-even: 10.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2005 kWh 1403 kWh 601 kWh £370 £60 £430 £6,756 15.7 yrs £1,851
3 kW 3007 kWh 2105 kWh 902 kWh £555 £90 £645 £8,383 13.0 yrs £4,526
4 kW 4009 kWh 2807 kWh 1203 kWh £740 £120 £861 £10,011 11.6 yrs £7,202
5 kW 5012 kWh 3508 kWh 1503 kWh £925 £150 £1,076 £11,639 10.8 yrs £9,877
6 kW 6014 kWh 4210 kWh 1804 kWh £1,111 £180 £1,291 £13,267 10.3 yrs £12,553
7 kW 7016 kWh 4911 kWh 2105 kWh £1,296 £210 £1,506 £14,894 9.9 yrs £15,228
8 kW 8019 kWh 5613 kWh 2406 kWh £1,481 £241 £1,721 £16,522 9.6 yrs £17,904

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: £1,100, Upfront: £13,389, Break-even: 12.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2005 kWh 1463 kWh 541 kWh £386 £54 £440 £8,506 19.3 yrs £298
3 kW 3007 kWh 2195 kWh 812 kWh £579 £81 £660 £10,133 15.3 yrs £3,072
4 kW 4009 kWh 2927 kWh 1083 kWh £772 £108 £880 £11,761 13.4 yrs £5,846
5 kW 5012 kWh 3659 kWh 1353 kWh £965 £135 £1,100 £13,389 12.2 yrs £8,620
6 kW 6014 kWh 4390 kWh 1624 kWh £1,158 £162 £1,321 £15,017 11.4 yrs £11,394
7 kW 7016 kWh 5122 kWh 1894 kWh £1,351 £189 £1,541 £16,644 10.8 yrs £14,168
8 kW 8019 kWh 5854 kWh 2165 kWh £1,544 £217 £1,761 £18,272 10.4 yrs £16,942

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: £1,117, Upfront: £15,139, 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 2005 kWh 1503 kWh 501 kWh £397 £50 £447 £10,256 23.0 yrs £-1,321
3 kW 3007 kWh 2255 kWh 752 kWh £595 £75 £670 £11,883 17.7 yrs £1,519
4 kW 4009 kWh 3007 kWh 1002 kWh £793 £100 £893 £13,511 15.1 yrs £4,358
5 kW 5012 kWh 3759 kWh 1253 kWh £992 £125 £1,117 £15,139 13.6 yrs £7,198
6 kW 6014 kWh 4510 kWh 1503 kWh £1,190 £150 £1,340 £16,767 12.5 yrs £10,038
7 kW 7016 kWh 5262 kWh 1754 kWh £1,388 £175 £1,564 £18,394 11.8 yrs £12,877
8 kW 8019 kWh 6014 kWh 2005 kWh £1,586 £200 £1,787 £20,022 11.2 yrs £15,717

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: £1,133, Upfront: £17,589, 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 2005 kWh 1544 kWh 461 kWh £407 £46 £453 £12,706 28.0 yrs £-3,639
3 kW 3007 kWh 2315 kWh 692 kWh £611 £69 £680 £14,333 21.1 yrs £-734
4 kW 4009 kWh 3087 kWh 922 kWh £814 £92 £907 £15,961 17.6 yrs £2,171
5 kW 5012 kWh 3859 kWh 1153 kWh £1,018 £115 £1,133 £17,589 15.5 yrs £5,076
6 kW 6014 kWh 4631 kWh 1383 kWh £1,222 £138 £1,360 £19,217 14.1 yrs £7,982
7 kW 7016 kWh 5403 kWh 1614 kWh £1,425 £161 £1,587 £20,844 13.1 yrs £10,887
8 kW 8019 kWh 6174 kWh 1844 kWh £1,629 £184 £1,813 £22,472 12.4 yrs £13,792

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 Central Bedfordshire

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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Seasonal solar output in SG19

Monthly generation per kilowatt of solar panels

kWh 39 Jan 53 Feb 86 Mar 111 Apr 119 May 120 Jun 121 Jul 110 Aug 94 Sep 68 Oct 47 Nov 35 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 50.8% of an average month (Dec–Feb)

Best / worst month: Jul / Dec

These figures show output per kilowatt (kW) of panels installed. In winter, a 1 kW system here produces about 42 kWh per month; the average month produces around 84 kWh. So a typical 4 kW home system would generate roughly 170 kWh in winter, or 334 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
26.38p/kWh
Daily Fixed Charge
53.94p/day
Local Sunshine
1002kWh/kW
A 1 kW system generates ~1002 kWh per year. A typical home uses ~2,700 kWh per year.
Typical System Size
5.0kW
For houses & bungalows in this area

Local Property Data

Property Types

Houses: 77% • Flats: 11% • Bungalows: 10% Based on 6,660 properties

Coverage

Central Bedfordshire (78%)|South Cambridgeshire (15%)|Huntingdonshire (6%)

Areas Covered

Sandy, Potton, Gamlingay, Great Paxton, Caldecote, The Mordens, Northill

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.