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Solar panel cost in Basildon (SS15)

See realistic solar installation costs, savings and payback for SS15 (Basildon) 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
9.5 years
After this, it's pure profit
Upfront Cost
£8,139
What you pay to get started
Annual Benefit
£857
What you save every year
Profit Over 25 Years
£13,285
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 1035 kWh/kW — 26 above 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 1035 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)
1035 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: £857, Upfront: £8,139, Break-even: 9.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2071 kWh 828 kWh 1243 kWh £219 £124 £343 £3,256 9.5 yrs £3,600
3 kW 3106 kWh 1243 kWh 1864 kWh £328 £186 £514 £4,883 9.5 yrs £5,400
4 kW 4142 kWh 1657 kWh 2485 kWh £437 £249 £686 £6,511 9.5 yrs £7,200
5 kW 5177 kWh 2071 kWh 3106 kWh £546 £311 £857 £8,139 9.5 yrs £9,000
6 kW 6213 kWh 2485 kWh 3728 kWh £656 £373 £1,028 £9,767 9.5 yrs £10,800
7 kW 7248 kWh 2899 kWh 4349 kWh £765 £435 £1,200 £11,394 9.5 yrs £12,600
8 kW 8284 kWh 3313 kWh 4970 kWh £874 £497 £1,371 £13,022 9.5 yrs £14,400

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: £1,027, Upfront: £10,239, Break-even: 10.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2071 kWh 1243 kWh 828 kWh £328 £83 £411 £5,356 13.0 yrs £2,857
3 kW 3106 kWh 1864 kWh 1243 kWh £492 £124 £616 £6,983 11.3 yrs £5,335
4 kW 4142 kWh 2485 kWh 1657 kWh £656 £166 £821 £8,611 10.5 yrs £7,814
5 kW 5177 kWh 3106 kWh 2071 kWh £819 £207 £1,027 £10,239 10.0 yrs £10,292
6 kW 6213 kWh 3728 kWh 2485 kWh £983 £249 £1,232 £11,867 9.6 yrs £12,771
7 kW 7248 kWh 4349 kWh 2899 kWh £1,147 £290 £1,437 £13,494 9.4 yrs £15,249
8 kW 8284 kWh 4970 kWh 3313 kWh £1,311 £331 £1,642 £15,122 9.2 yrs £17,727

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: £1,111, Upfront: £11,639, Break-even: 10.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2071 kWh 1450 kWh 621 kWh £382 £62 £445 £6,756 15.2 yrs £2,135
3 kW 3106 kWh 2174 kWh 932 kWh £574 £93 £667 £8,383 12.6 yrs £4,953
4 kW 4142 kWh 2899 kWh 1243 kWh £765 £124 £889 £10,011 11.3 yrs £7,771
5 kW 5177 kWh 3624 kWh 1553 kWh £956 £155 £1,111 £11,639 10.5 yrs £10,588
6 kW 6213 kWh 4349 kWh 1864 kWh £1,147 £186 £1,334 £13,267 9.9 yrs £13,406
7 kW 7248 kWh 5074 kWh 2174 kWh £1,338 £217 £1,556 £14,894 9.6 yrs £16,223
8 kW 8284 kWh 5799 kWh 2485 kWh £1,530 £249 £1,778 £16,522 9.3 yrs £19,041

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: £1,137, Upfront: £13,389, Break-even: 11.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2071 kWh 1512 kWh 559 kWh £399 £56 £455 £8,506 18.7 yrs £589
3 kW 3106 kWh 2268 kWh 839 kWh £598 £84 £682 £10,133 14.9 yrs £3,508
4 kW 4142 kWh 3024 kWh 1118 kWh £798 £112 £909 £11,761 12.9 yrs £6,428
5 kW 5177 kWh 3779 kWh 1398 kWh £997 £140 £1,137 £13,389 11.8 yrs £9,347
6 kW 6213 kWh 4535 kWh 1677 kWh £1,196 £168 £1,364 £15,017 11.0 yrs £12,266
7 kW 7248 kWh 5291 kWh 1957 kWh £1,396 £196 £1,592 £16,644 10.5 yrs £15,186
8 kW 8284 kWh 6047 kWh 2237 kWh £1,595 £224 £1,819 £18,272 10.0 yrs £18,105

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: £1,154, Upfront: £15,139, Break-even: 13.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2071 kWh 1553 kWh 518 kWh £410 £52 £462 £10,256 22.2 yrs £-1,026
3 kW 3106 kWh 2330 kWh 777 kWh £615 £78 £692 £11,883 17.2 yrs £1,962
4 kW 4142 kWh 3106 kWh 1035 kWh £819 £104 £923 £13,511 14.6 yrs £4,949
5 kW 5177 kWh 3883 kWh 1294 kWh £1,024 £129 £1,154 £15,139 13.1 yrs £7,936
6 kW 6213 kWh 4660 kWh 1553 kWh £1,229 £155 £1,385 £16,767 12.1 yrs £10,923
7 kW 7248 kWh 5436 kWh 1812 kWh £1,434 £181 £1,615 £18,394 11.4 yrs £13,911
8 kW 8284 kWh 6213 kWh 2071 kWh £1,639 £207 £1,846 £20,022 10.8 yrs £16,898

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: £1,171, Upfront: £17,589, 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 2071 kWh 1595 kWh 476 kWh £421 £48 £468 £12,706 27.1 yrs £-3,340
3 kW 3106 kWh 2392 kWh 714 kWh £631 £71 £702 £14,333 20.4 yrs £-285
4 kW 4142 kWh 3189 kWh 953 kWh £841 £95 £937 £15,961 17.0 yrs £2,770
5 kW 5177 kWh 3986 kWh 1191 kWh £1,052 £119 £1,171 £17,589 15.0 yrs £5,825
6 kW 6213 kWh 4784 kWh 1429 kWh £1,262 £143 £1,405 £19,217 13.7 yrs £8,881
7 kW 7248 kWh 5581 kWh 1667 kWh £1,472 £167 £1,639 £20,844 12.7 yrs £11,936
8 kW 8284 kWh 6378 kWh 1905 kWh £1,683 £191 £1,873 £22,472 12.0 yrs £14,991

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 Basildon

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 SS15

Figures below are tailored to SS15 — click through for full league tables.

Big-Roof Britain Rank #1474 of 2182
4.7 kWp (UK avg 5.1 kWp)
~10 panels (≈430 W)
Solar Payback Index Rank #322 of 2996
9.5 years (UK avg 10.8 years)
~£857 /yr • £8,139 upfront
Standing-Charge Drag Rank #1012 of 2996
23.0% (UK avg 26.6%) drag on savings
£197 fixed • ~£857 /yr value
Aspect Penalty View ranking →
East −21.8% West −20.5%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in SS15

Monthly generation per kilowatt of solar panels

kWh 40 Jan 54 Feb 87 Mar 116 Apr 123 May 125 Jun 125 Jul 114 Aug 97 Sep 69 Oct 48 Nov 37 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 50.2% of an average month (Dec–Feb)

Best / worst month: Jun / Dec

These figures show output per kilowatt (kW) of panels installed. In winter, a 1 kW system here produces about 43 kWh per month; the average month produces around 86 kWh. So a typical 4 kW home system would generate roughly 173 kWh in winter, or 345 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
26.38p/kWh
Daily Fixed Charge
53.94p/day
Local Sunshine
1035kWh/kW
A 1 kW system generates ~1035 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: 68% • Flats: 24% • Bungalows: 6% Based on 7,532 properties

Coverage

Basildon (100%)

Areas Covered

Laindon Park, Lee Chapel North, Castledon & Crouch, Burstead, St Martin's, Langdon Hills

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

SS14 (Basildon)
≈2.4 km away
Local sunshine: ~1,039 kWh/kWp · +0% vs SS15
SS16 (Basildon)
≈2.4 km away
Local sunshine: ~1,039 kWh/kWp · +0% vs SS15
CM11 (Basildon)
≈5.4 km away
Local sunshine: ~1,033 kWh/kWp · -0% vs SS15
CM12 (Basildon)
≈5.5 km away
Local sunshine: ~1,033 kWh/kWp · -0% vs SS15
SS13 (Basildon)
≈5.6 km away
Local sunshine: ~1,043 kWh/kWp · +1% vs SS15
SS17 (Thurrock)
≈5.8 km away
Local sunshine: ~1,037 kWh/kWp · +0% vs SS15

Similar sunshine across the UK

LN13 (East Lindsey)
~1,035 kWh/kWp · -0% vs SS15
SO43 (New Forest)
~1,036 kWh/kWp · +0% vs SS15
CF62 (Vale of Glamorgan)
~1,036 kWh/kWp · +0% vs SS15