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Solar panel cost in Central Bedfordshire (MK45)

See realistic solar installation costs, savings and payback for MK45 (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
9.9 years
After this, it's pure profit
Upfront Cost
£8,139
What you pay to get started
Annual Benefit
£824
What you save every year
Profit Over 25 Years
£12,453
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 Eastern, the current unit rate is 26.38p/kWh with a 53.94p/day standing charge. Your postcode’s south-facing sunshine yield is 995 kWh/kW — 14 below the regional median (1009).

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 995 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)
995 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: £824, Upfront: £8,139, Break-even: 9.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1990 kWh 796 kWh 1194 kWh £210 £119 £329 £3,256 9.9 yrs £3,334
3 kW 2986 kWh 1194 kWh 1791 kWh £315 £179 £494 £4,883 9.9 yrs £5,001
4 kW 3981 kWh 1592 kWh 2389 kWh £420 £239 £659 £6,511 9.9 yrs £6,667
5 kW 4976 kWh 1990 kWh 2986 kWh £525 £299 £824 £8,139 9.9 yrs £8,334
6 kW 5971 kWh 2389 kWh 3583 kWh £630 £358 £988 £9,767 9.9 yrs £10,001
7 kW 6967 kWh 2787 kWh 4180 kWh £735 £418 £1,153 £11,394 9.9 yrs £11,668
8 kW 7962 kWh 3185 kWh 4777 kWh £840 £478 £1,318 £13,022 9.9 yrs £13,335

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: £987, Upfront: £10,239, 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 1990 kWh 1194 kWh 796 kWh £315 £80 £395 £5,356 13.6 yrs £2,538
3 kW 2986 kWh 1791 kWh 1194 kWh £473 £119 £592 £6,983 11.8 yrs £4,857
4 kW 3981 kWh 2389 kWh 1592 kWh £630 £159 £789 £8,611 10.9 yrs £7,176
5 kW 4976 kWh 2986 kWh 1990 kWh £788 £199 £987 £10,239 10.4 yrs £9,495
6 kW 5971 kWh 3583 kWh 2389 kWh £945 £239 £1,184 £11,867 10.0 yrs £11,814
7 kW 6967 kWh 4180 kWh 2787 kWh £1,103 £279 £1,381 £13,494 9.8 yrs £14,132
8 kW 7962 kWh 4777 kWh 3185 kWh £1,260 £318 £1,579 £15,122 9.6 yrs £16,451

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: £1,068, Upfront: £11,639, Break-even: 10.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1990 kWh 1393 kWh 597 kWh £368 £60 £427 £6,756 15.8 yrs £1,790
3 kW 2986 kWh 2090 kWh 896 kWh £551 £90 £641 £8,383 13.1 yrs £4,435
4 kW 3981 kWh 2787 kWh 1194 kWh £735 £119 £855 £10,011 11.7 yrs £7,080
5 kW 4976 kWh 3483 kWh 1493 kWh £919 £149 £1,068 £11,639 10.9 yrs £9,725
6 kW 5971 kWh 4180 kWh 1791 kWh £1,103 £179 £1,282 £13,267 10.3 yrs £12,370
7 kW 6967 kWh 4877 kWh 2090 kWh £1,286 £209 £1,495 £14,894 10.0 yrs £15,015
8 kW 7962 kWh 5573 kWh 2389 kWh £1,470 £239 £1,709 £16,522 9.7 yrs £17,660

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: £1,093, Upfront: £13,389, Break-even: 12.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1990 kWh 1453 kWh 537 kWh £383 £54 £437 £8,506 19.5 yrs £236
3 kW 2986 kWh 2180 kWh 806 kWh £575 £81 £656 £10,133 15.5 yrs £2,978
4 kW 3981 kWh 2906 kWh 1075 kWh £767 £107 £874 £11,761 13.5 yrs £5,721
5 kW 4976 kWh 3633 kWh 1344 kWh £958 £134 £1,093 £13,389 12.3 yrs £8,464
6 kW 5971 kWh 4359 kWh 1612 kWh £1,150 £161 £1,311 £15,017 11.5 yrs £11,207
7 kW 6967 kWh 5086 kWh 1881 kWh £1,342 £188 £1,530 £16,644 10.9 yrs £13,949
8 kW 7962 kWh 5812 kWh 2150 kWh £1,533 £215 £1,748 £18,272 10.5 yrs £16,692

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: £1,109, Upfront: £15,139, Break-even: 13.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1990 kWh 1493 kWh 498 kWh £394 £50 £444 £10,256 23.1 yrs £-1,384
3 kW 2986 kWh 2239 kWh 746 kWh £591 £75 £665 £11,883 17.9 yrs £1,424
4 kW 3981 kWh 2986 kWh 995 kWh £788 £100 £887 £13,511 15.2 yrs £4,232
5 kW 4976 kWh 3732 kWh 1244 kWh £985 £124 £1,109 £15,139 13.7 yrs £7,040
6 kW 5971 kWh 4479 kWh 1493 kWh £1,181 £149 £1,331 £16,767 12.6 yrs £9,848
7 kW 6967 kWh 5225 kWh 1742 kWh £1,378 £174 £1,553 £18,394 11.8 yrs £12,656
8 kW 7962 kWh 5971 kWh 1990 kWh £1,575 £199 £1,774 £20,022 11.3 yrs £15,464

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: £1,125, Upfront: £17,589, Break-even: 15.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1990 kWh 1533 kWh 458 kWh £404 £46 £450 £12,706 28.2 yrs £-3,704
3 kW 2986 kWh 2299 kWh 687 kWh £606 £69 £675 £14,333 21.2 yrs £-830
4 kW 3981 kWh 3065 kWh 916 kWh £809 £92 £900 £15,961 17.7 yrs £2,043
5 kW 4976 kWh 3832 kWh 1145 kWh £1,011 £114 £1,125 £17,589 15.6 yrs £4,916
6 kW 5971 kWh 4598 kWh 1373 kWh £1,213 £137 £1,350 £19,217 14.2 yrs £7,789
7 kW 6967 kWh 5364 kWh 1602 kWh £1,415 £160 £1,575 £20,844 13.2 yrs £10,662
8 kW 7962 kWh 6131 kWh 1831 kWh £1,617 £183 £1,800 £22,472 12.5 yrs £13,536

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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Understand DNO, G98 and G99 export limits

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Insights for MK45

Figures below are tailored to MK45 — click through for full league tables.

Big-Roof Britain Rank #902 of 2182
5.2 kWp (UK avg 5.1 kWp)
~11 panels (≈430 W)
Solar Payback Index Rank #861 of 2996
9.9 years (UK avg 10.8 years)
~£823 /yr • £8,139 upfront
Standing-Charge Drag Rank #1186 of 2996
23.9% (UK avg 26.6%) drag on savings
£197 fixed • ~£823 /yr value
Aspect Penalty View ranking →
East −21.7% West −19.9%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in MK45

Monthly generation per kilowatt of solar panels

kWh 39 Jan 52 Feb 84 Mar 110 Apr 119 May 119 Jun 121 Jul 109 Aug 94 Sep 67 Oct 46 Nov 34 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 50.5% 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 83 kWh. So a typical 4 kW home system would generate roughly 168 kWh in winter, or 332 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
26.38p/kWh
Daily Fixed Charge
53.94p/day
Local Sunshine
995kWh/kW
A 1 kW system generates ~995 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: 78% • Flats: 11% • Bungalows: 11% Based on 12,438 properties

Coverage

Central Bedfordshire (83%)|Bedford (17%)

Areas Covered

Ampthill, Flitwick, Barton-le-Clay & Silsoe, Westoning, Flitton & Greenfield, Greyfriars, Houghton Conquest & Haynes, Wixams & Wilstead + 5 more

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 Eastern

SG17 (Central Bedfordshire)
≈10.5 km away
Local sunshine: ~1,000 kWh/kWp · +0% vs MK45
MK42 (Bedford)
≈10.6 km away
Local sunshine: ~1,000 kWh/kWp · +0% vs MK45
MK43 (Bedford)
≈10.8 km away
Local sunshine: ~998 kWh/kWp · +0% vs MK45
MK40 (Bedford)
≈12.6 km away
Local sunshine: ~1,000 kWh/kWp · +0% vs MK45
SG16 (Central Bedfordshire)
≈12.8 km away
Local sunshine: ~994 kWh/kWp · -0% vs MK45
LU5 (Central Bedfordshire)
≈13.5 km away
Local sunshine: ~990 kWh/kWp · -0% vs MK45

Similar sunshine across the UK

W6 (Hammersmith and Fulham)
~995 kWh/kWp · +0% vs MK45
SM5 (Sutton)
~995 kWh/kWp · -0% vs MK45
NN9 (North Northamptonshire)
~995 kWh/kWp · +0% vs MK45