Postcode solar briefing

Solar panel cost in Broxbourne (EN10)

See realistic solar installation costs, savings and payback for EN10 (Broxbourne) using official UK data. Start with the local verdict, then adjust the calculator for your roof, usage and export assumptions.

Local model Calculator unchanged Quote assumptions checked
Local solar briefing

Solar in EN10: roof size may be the main upside, so compare proposed system sizes carefully.

This is a modelled local view, not a promise of savings. Use it as a quick sense-check before comparing installer quotes for EN10.

Typical system
6.0 kW
starting point
Annual benefit
£983
before battery costs
Payback estimate
9.9 years
panel-only baseline
Postcode verdict
Roof-size upside
local model
Local context

Why EN10 differs

South-facing yield is close to the Eastern median, so roof size, usage and tariff assumptions do most of the work.

The starting system size is 6.0 kW, which is larger than the regional typical size of 5.0 kW.

Local housing mix looks suitable for a postcode-level estimate, but your actual roof still matters more than the area average.

Battery payback depends heavily on evening use, export tariff and whether the installer has assumed optimistic self-consumption.

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
£9,767
What you pay to get started
Annual Benefit
£983
What you save every year
Profit Over 25 Years
£14,802
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.

Before you sign

What to challenge in solar quotes for EN10

Use the calculator above as a baseline, then ask installers to explain where their quote differs from the local assumptions.

If the proposed system is much larger than 6.0 kW, ask why it fits your roof and usage.

Compare payback with and without a battery before accepting a bundled quote.

Check which Smart Export Guarantee tariff is assumed. The calculator baseline uses 10p/kWh.

Confirm who handles MCS certification and DNO/G98/G99 paperwork before comparing finance or warranties.

New quote check

Want a quote sanity check for EN10?

Share the first part of your postcode and a few basics. We’ll help you check whether system size, battery, export and paperwork assumptions look sensible before you commit to installer conversations.

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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Your area in context

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 990 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)
990 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: £819, 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 1979 kWh 792 kWh 1187 kWh £209 £119 £328 £3,256 9.9 yrs £3,296
3 kW 2969 kWh 1187 kWh 1781 kWh £313 £178 £491 £4,883 9.9 yrs £4,944
4 kW 3958 kWh 1583 kWh 2375 kWh £418 £237 £655 £6,511 9.9 yrs £6,592
5 kW 4948 kWh 1979 kWh 2969 kWh £522 £297 £819 £8,139 9.9 yrs £8,240
6 kW 5937 kWh 2375 kWh 3562 kWh £627 £356 £983 £9,767 9.9 yrs £9,888
7 kW 6927 kWh 2771 kWh 4156 kWh £731 £416 £1,147 £11,394 9.9 yrs £11,537
8 kW 7916 kWh 3167 kWh 4750 kWh £835 £475 £1,310 £13,022 9.9 yrs £13,185

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: £981, 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 1979 kWh 1187 kWh 792 kWh £313 £79 £392 £5,356 13.6 yrs £2,493
3 kW 2969 kWh 1781 kWh 1187 kWh £470 £119 £589 £6,983 11.9 yrs £4,789
4 kW 3958 kWh 2375 kWh 1583 kWh £627 £158 £785 £8,611 11.0 yrs £7,086
5 kW 4948 kWh 2969 kWh 1979 kWh £783 £198 £981 £10,239 10.4 yrs £9,382
6 kW 5937 kWh 3562 kWh 2375 kWh £940 £237 £1,177 £11,867 10.1 yrs £11,679
7 kW 6927 kWh 4156 kWh 2771 kWh £1,096 £277 £1,373 £13,494 9.8 yrs £13,975
8 kW 7916 kWh 4750 kWh 3167 kWh £1,253 £317 £1,570 £15,122 9.6 yrs £16,272

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: £1,062, Upfront: £11,639, 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 1979 kWh 1385 kWh 594 kWh £365 £59 £425 £6,756 15.9 yrs £1,741
3 kW 2969 kWh 2078 kWh 891 kWh £548 £89 £637 £8,383 13.2 yrs £4,362
4 kW 3958 kWh 2771 kWh 1187 kWh £731 £119 £850 £10,011 11.8 yrs £6,982
5 kW 4948 kWh 3463 kWh 1484 kWh £914 £148 £1,062 £11,639 11.0 yrs £9,603
6 kW 5937 kWh 4156 kWh 1781 kWh £1,096 £178 £1,275 £13,267 10.4 yrs £12,224
7 kW 6927 kWh 4849 kWh 2078 kWh £1,279 £208 £1,487 £14,894 10.0 yrs £14,844
8 kW 7916 kWh 5542 kWh 2375 kWh £1,462 £237 £1,699 £16,522 9.7 yrs £17,465

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: £1,086, 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 1979 kWh 1445 kWh 534 kWh £381 £53 £435 £8,506 19.6 yrs £186
3 kW 2969 kWh 2167 kWh 802 kWh £572 £80 £652 £10,133 15.5 yrs £2,904
4 kW 3958 kWh 2890 kWh 1069 kWh £762 £107 £869 £11,761 13.5 yrs £5,621
5 kW 4948 kWh 3612 kWh 1336 kWh £953 £134 £1,086 £13,389 12.3 yrs £8,339
6 kW 5937 kWh 4334 kWh 1603 kWh £1,143 £160 £1,304 £15,017 11.5 yrs £11,057
7 kW 6927 kWh 5057 kWh 1870 kWh £1,334 £187 £1,521 £16,644 10.9 yrs £13,775
8 kW 7916 kWh 5779 kWh 2137 kWh £1,525 £214 £1,738 £18,272 10.5 yrs £16,493

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: £1,103, 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 1979 kWh 1484 kWh 495 kWh £392 £49 £441 £10,256 23.3 yrs £-1,435
3 kW 2969 kWh 2227 kWh 742 kWh £587 £74 £662 £11,883 18.0 yrs £1,348
4 kW 3958 kWh 2969 kWh 990 kWh £783 £99 £882 £13,511 15.3 yrs £4,131
5 kW 4948 kWh 3711 kWh 1237 kWh £979 £124 £1,103 £15,139 13.7 yrs £6,914
6 kW 5937 kWh 4453 kWh 1484 kWh £1,175 £148 £1,323 £16,767 12.7 yrs £9,696
7 kW 6927 kWh 5195 kWh 1732 kWh £1,370 £173 £1,544 £18,394 11.9 yrs £12,479
8 kW 7916 kWh 5937 kWh 1979 kWh £1,566 £198 £1,764 £20,022 11.3 yrs £15,262

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: £1,119, Upfront: £17,589, Break-even: 15.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1979 kWh 1524 kWh 455 kWh £402 £46 £448 £12,706 28.4 yrs £-3,755
3 kW 2969 kWh 2286 kWh 683 kWh £603 £68 £671 £14,333 21.4 yrs £-907
4 kW 3958 kWh 3048 kWh 910 kWh £804 £91 £895 £15,961 17.8 yrs £1,940
5 kW 4948 kWh 3810 kWh 1138 kWh £1,005 £114 £1,119 £17,589 15.7 yrs £4,788
6 kW 5937 kWh 4572 kWh 1366 kWh £1,206 £137 £1,343 £19,217 14.3 yrs £7,635
7 kW 6927 kWh 5334 kWh 1593 kWh £1,407 £159 £1,566 £20,844 13.3 yrs £10,483
8 kW 7916 kWh 6096 kWh 1821 kWh £1,608 £182 £1,790 £22,472 12.6 yrs £13,330

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.

Seasonal solar output in EN10

Monthly generation per kilowatt of solar panels

kWh 38 Jan 52 Feb 84 Mar 110 Apr 117 May 120 Jun 121 Jul 108 Aug 93 Sep 66 Oct 45 Nov 34 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 50.2% 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 41 kWh per month; the average month produces around 82 kWh. So a typical 4 kW home system would generate roughly 166 kWh in winter, or 330 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
26.38p/kWh
Daily Fixed Charge
53.94p/day
Local Sunshine
990kWh/kW
A 1 kW system generates ~990 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: 51% • Flats: 42% • Bungalows: 4% Based on 4,439 properties

Coverage

Broxbourne (91%)|Epping Forest (7%)|East Hertfordshire (1%)

Areas Covered

Broxbourne and Hoddesdon South, Wormley and Turnford, Hoddesdon Town and Rye Park, Roydon & Lower Nazeing, Hertford Heath & Brickendon, Goffs Oak, Flamstead End, Waltham Abbey North

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.