Solar panel cost in Rochford (SS5)

See realistic solar installation costs, savings and payback for SS5 (Rochford) 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
11.0 years
After this, it's pure profit
Upfront Cost
£12,207
What you pay to get started
Annual Benefit
£1,114
What you save every year
Profit Over 25 Years
£15,654
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: 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

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 1083 kWh per year on a south-facing roof. We value self-used electricity at 27.9p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
27.9p/kWh
Standing charge
49.3p/day
Sunshine yield (south)
1083 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: £929, Upfront: £10,173, 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 2166 kWh 866 kWh 1299 kWh £242 £130 £371 £4,069 11.0 yrs £3,360
3 kW 3249 kWh 1299 kWh 1949 kWh £362 £195 £557 £6,104 11.0 yrs £5,041
4 kW 4332 kWh 1733 kWh 2599 kWh £483 £260 £743 £8,138 11.0 yrs £6,721
5 kW 5414 kWh 2166 kWh 3249 kWh £604 £325 £929 £10,173 11.0 yrs £8,401
6 kW 6497 kWh 2599 kWh 3898 kWh £725 £390 £1,114 £12,207 11.0 yrs £10,081
7 kW 7580 kWh 3032 kWh 4548 kWh £845 £455 £1,300 £14,242 11.0 yrs £11,762
8 kW 8663 kWh 3465 kWh 5198 kWh £966 £520 £1,486 £16,276 11.0 yrs £13,442

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: £1,122, Upfront: £12,273, 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 2166 kWh 1299 kWh 866 kWh £362 £87 £449 £6,169 13.7 yrs £2,809
3 kW 3249 kWh 1949 kWh 1299 kWh £543 £130 £673 £8,204 12.2 yrs £5,264
4 kW 4332 kWh 2599 kWh 1733 kWh £725 £173 £898 £10,238 11.4 yrs £7,719
5 kW 5414 kWh 3249 kWh 2166 kWh £906 £217 £1,122 £12,273 10.9 yrs £10,174
6 kW 6497 kWh 3898 kWh 2599 kWh £1,087 £260 £1,347 £14,307 10.6 yrs £12,628
7 kW 7580 kWh 4548 kWh 3032 kWh £1,268 £303 £1,571 £16,342 10.4 yrs £15,083
8 kW 8663 kWh 5198 kWh 3465 kWh £1,449 £347 £1,796 £18,376 10.2 yrs £17,538

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: £1,219, Upfront: £13,673, Break-even: 11.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2166 kWh 1516 kWh 650 kWh £423 £65 £488 £7,569 15.5 yrs £2,184
3 kW 3249 kWh 2274 kWh 975 kWh £634 £97 £731 £9,604 13.1 yrs £5,026
4 kW 4332 kWh 3032 kWh 1299 kWh £845 £130 £975 £11,638 11.9 yrs £7,868
5 kW 5414 kWh 3790 kWh 1624 kWh £1,057 £162 £1,219 £13,673 11.2 yrs £10,710
6 kW 6497 kWh 4548 kWh 1949 kWh £1,268 £195 £1,463 £15,707 10.7 yrs £13,552
7 kW 7580 kWh 5306 kWh 2274 kWh £1,479 £227 £1,707 £17,742 10.4 yrs £16,394
8 kW 8663 kWh 6064 kWh 2599 kWh £1,691 £260 £1,951 £19,776 10.1 yrs £19,236

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: £1,248, Upfront: £15,423, Break-even: 12.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2166 kWh 1581 kWh 585 kWh £441 £58 £499 £9,319 18.7 yrs £666
3 kW 3249 kWh 2372 kWh 877 kWh £661 £88 £749 £11,354 15.2 yrs £3,624
4 kW 4332 kWh 3162 kWh 1170 kWh £882 £117 £999 £13,388 13.4 yrs £6,583
5 kW 5414 kWh 3953 kWh 1462 kWh £1,102 £146 £1,248 £15,423 12.4 yrs £9,541
6 kW 6497 kWh 4743 kWh 1754 kWh £1,322 £175 £1,498 £17,457 11.7 yrs £12,499
7 kW 7580 kWh 5534 kWh 2047 kWh £1,543 £205 £1,747 £19,492 11.2 yrs £15,457
8 kW 8663 kWh 6324 kWh 2339 kWh £1,763 £234 £1,997 £21,526 10.8 yrs £18,415

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: £1,268, Upfront: £17,173, Break-even: 13.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2166 kWh 1624 kWh 541 kWh £453 £54 £507 £11,069 21.8 yrs £-929
3 kW 3249 kWh 2437 kWh 812 kWh £679 £81 £761 £13,104 17.2 yrs £2,107
4 kW 4332 kWh 3249 kWh 1083 kWh £906 £108 £1,014 £15,138 14.9 yrs £5,142
5 kW 5414 kWh 4061 kWh 1354 kWh £1,132 £135 £1,268 £17,173 13.5 yrs £8,178
6 kW 6497 kWh 4873 kWh 1624 kWh £1,359 £162 £1,521 £19,207 12.6 yrs £11,213
7 kW 7580 kWh 5685 kWh 1895 kWh £1,585 £190 £1,775 £21,242 12.0 yrs £14,249
8 kW 8663 kWh 6497 kWh 2166 kWh £1,811 £217 £2,028 £23,276 11.5 yrs £17,285

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: £1,287, Upfront: £19,623, Break-even: 15.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2166 kWh 1668 kWh 498 kWh £465 £50 £515 £13,519 26.3 yrs £-3,224
3 kW 3249 kWh 2501 kWh 747 kWh £697 £75 £772 £15,554 20.1 yrs £-111
4 kW 4332 kWh 3335 kWh 996 kWh £930 £100 £1,030 £17,588 17.1 yrs £3,002
5 kW 5414 kWh 4169 kWh 1245 kWh £1,162 £125 £1,287 £19,623 15.2 yrs £6,115
6 kW 6497 kWh 5003 kWh 1494 kWh £1,395 £149 £1,544 £21,657 14.0 yrs £9,228
7 kW 7580 kWh 5837 kWh 1743 kWh £1,627 £174 £1,802 £23,692 13.2 yrs £12,341
8 kW 8663 kWh 6671 kWh 1993 kWh £1,860 £199 £2,059 £25,726 12.5 yrs £15,454

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.

Your Area at a Glance

Your Electricity Rate
27.88p/kWh
Daily Fixed Charge
49.33p/day
Local Sunshine
1083kWh/kW
A 1 kW system generates ~1083 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: 64% • Flats: 12% • Bungalows: 22% Based on 4,652 properties

Coverage

Rochford (100%)

Areas Covered

Hockley, Hullbridge, Hockley and Ashingdon, Hawkwell West, Trinity, Roche South, Downhall and Rawreth

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.