Independent solar numbers for your postcode using official UK data
Home Regions Guides Compare quotes Solar assistant
Insights
Big Roof Britain Solar Payback Index Standing Charge Drag Roof Direction Penalty Winter Solar Reality Seasonal Solar Output

Solar panel cost in Havering (RM1)

See realistic solar installation costs, savings and payback for RM1 (Havering) 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
10.9 years
After this, it's pure profit
Upfront Cost
£5,481
What you pay to get started
Annual Benefit
£503
What you save every year
Profit Over 25 Years
£7,104
After paying itself off, you're this much ahead

Ready to Get Started?

Get your free quote from Blue Ape Renewables. They'll connect you with MCS-certified installers in your area and handle all the paperwork.

Get Solar Quote →
4.8★ Trustpilot • Octopus Energy trusted partner • MCS certified • No obligation
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 1014 kWh/kW — 5 above the regional median (1009).

Read the full story

A typical roof here lands around 3.0 kW, with most eligible homes comfortably fitting within 3–6 kW. Each kilowatt of panels produces roughly 1014 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)
1014 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: £839, Upfront: £9,134, 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 2027 kWh 811 kWh 1216 kWh £214 £122 £336 £3,654 10.9 yrs £3,058
3 kW 3041 kWh 1216 kWh 1825 kWh £321 £182 £503 £5,481 10.9 yrs £4,587
4 kW 4055 kWh 1622 kWh 2433 kWh £428 £243 £671 £7,307 10.9 yrs £6,116
5 kW 5069 kWh 2027 kWh 3041 kWh £535 £304 £839 £9,134 10.9 yrs £7,645
6 kW 6082 kWh 2433 kWh 3649 kWh £642 £365 £1,007 £10,961 10.9 yrs £9,174
7 kW 7096 kWh 2838 kWh 4258 kWh £749 £426 £1,175 £12,788 10.9 yrs £10,703
8 kW 8110 kWh 3244 kWh 4866 kWh £856 £487 £1,342 £14,615 10.9 yrs £12,232

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,827, battery £/kWh = 700.

3 kWh battery 5 kW example → Annual benefit: £1,005, Upfront: £11,234, 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 2027 kWh 1216 kWh 811 kWh £321 £81 £402 £5,754 14.3 yrs £2,286
3 kW 3041 kWh 1825 kWh 1216 kWh £481 £122 £603 £7,581 12.6 yrs £4,480
4 kW 4055 kWh 2433 kWh 1622 kWh £642 £162 £804 £9,407 11.7 yrs £6,673
5 kW 5069 kWh 3041 kWh 2027 kWh £802 £203 £1,005 £11,234 11.2 yrs £8,866
6 kW 6082 kWh 3649 kWh 2433 kWh £963 £243 £1,206 £13,061 10.8 yrs £11,059
7 kW 7096 kWh 4258 kWh 2838 kWh £1,123 £284 £1,407 £14,888 10.6 yrs £13,253
8 kW 8110 kWh 4866 kWh 3244 kWh £1,284 £324 £1,608 £16,715 10.4 yrs £15,446

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,827, battery £/kWh = 700.

5 kWh battery 5 kW example → Annual benefit: £1,088, Upfront: £12,634, Break-even: 11.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2027 kWh 1419 kWh 608 kWh £374 £61 £435 £7,154 16.4 yrs £1,551
3 kW 3041 kWh 2129 kWh 912 kWh £562 £91 £653 £8,981 13.8 yrs £4,076
4 kW 4055 kWh 2838 kWh 1216 kWh £749 £122 £870 £10,807 12.4 yrs £6,601
5 kW 5069 kWh 3548 kWh 1521 kWh £936 £152 £1,088 £12,634 11.6 yrs £9,127
6 kW 6082 kWh 4258 kWh 1825 kWh £1,123 £182 £1,306 £14,461 11.1 yrs £11,652
7 kW 7096 kWh 4967 kWh 2129 kWh £1,310 £213 £1,523 £16,288 10.7 yrs £14,177
8 kW 8110 kWh 5677 kWh 2433 kWh £1,498 £243 £1,741 £18,115 10.4 yrs £16,703

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,827, battery £/kWh = 700.

7.5 kWh battery 5 kW example → Annual benefit: £1,113, Upfront: £14,384, Break-even: 12.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2027 kWh 1480 kWh 547 kWh £390 £55 £445 £8,904 20.0 yrs £-0
3 kW 3041 kWh 2220 kWh 821 kWh £586 £82 £668 £10,731 16.1 yrs £2,625
4 kW 4055 kWh 2960 kWh 1095 kWh £781 £109 £890 £12,557 14.1 yrs £5,250
5 kW 5069 kWh 3700 kWh 1369 kWh £976 £137 £1,113 £14,384 12.9 yrs £7,875
6 kW 6082 kWh 4440 kWh 1642 kWh £1,171 £164 £1,336 £16,211 12.1 yrs £10,500
7 kW 7096 kWh 5180 kWh 1916 kWh £1,367 £192 £1,558 £18,038 11.6 yrs £13,125
8 kW 8110 kWh 5920 kWh 2190 kWh £1,562 £219 £1,781 £19,865 11.2 yrs £15,750

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,827, battery £/kWh = 700.

10 kWh battery 5 kW example → Annual benefit: £1,130, Upfront: £16,134, Break-even: 14.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2027 kWh 1521 kWh 507 kWh £401 £51 £452 £10,654 23.6 yrs £-1,617
3 kW 3041 kWh 2281 kWh 760 kWh £602 £76 £678 £12,481 18.4 yrs £1,074
4 kW 4055 kWh 3041 kWh 1014 kWh £802 £101 £904 £14,307 15.8 yrs £3,766
5 kW 5069 kWh 3802 kWh 1267 kWh £1,003 £127 £1,130 £16,134 14.3 yrs £6,457
6 kW 6082 kWh 4562 kWh 1521 kWh £1,203 £152 £1,355 £17,961 13.3 yrs £9,148
7 kW 7096 kWh 5322 kWh 1774 kWh £1,404 £177 £1,581 £19,788 12.5 yrs £11,840
8 kW 8110 kWh 6082 kWh 2027 kWh £1,605 £203 £1,807 £21,615 12.0 yrs £14,531

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,827, battery £/kWh = 700.

13.5 kWh battery 5 kW example → Annual benefit: £1,146, Upfront: £18,584, Break-even: 16.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2027 kWh 1561 kWh 466 kWh £412 £47 £458 £13,104 28.6 yrs £-3,934
3 kW 3041 kWh 2342 kWh 699 kWh £618 £70 £688 £14,931 21.7 yrs £-1,177
4 kW 4055 kWh 3122 kWh 933 kWh £824 £93 £917 £16,757 18.3 yrs £1,581
5 kW 5069 kWh 3903 kWh 1166 kWh £1,030 £117 £1,146 £18,584 16.2 yrs £4,339
6 kW 6082 kWh 4683 kWh 1399 kWh £1,236 £140 £1,375 £20,411 14.8 yrs £7,097
7 kW 7096 kWh 5464 kWh 1632 kWh £1,441 £163 £1,605 £22,238 13.9 yrs £9,855
8 kW 8110 kWh 6245 kWh 1865 kWh £1,647 £187 £1,834 £24,065 13.1 yrs £12,613

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,827, 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 Havering

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.

Compare solar quotes before you sign

Check what MCS certification means

Understand DNO, G98 and G99 export limits

New quote check

Want a quote sanity check for RM1?

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.

Request a quote sanity check →

Insights for RM1

Figures below are tailored to RM1 — click through for full league tables.

Big-Roof Britain Rank #2009 of 2182
4.1 kWp (UK avg 5.1 kWp)
~9 panels (≈430 W)
Solar Payback Index Rank #522 of 2996
9.7 years (UK avg 10.8 years)
~£839 /yr • £8,139 upfront
Standing-Charge Drag Rank #1094 of 2996
23.5% (UK avg 26.6%) drag on savings
£197 fixed • ~£839 /yr value
Aspect Penalty View ranking →
East −21.8% West −20.1%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in RM1

Monthly generation per kilowatt of solar panels

kWh 40 Jan 52 Feb 85 Mar 113 Apr 120 May 122 Jun 124 Jul 111 Aug 95 Sep 68 Oct 47 Nov 36 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 50.4% 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 43 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 338 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
26.38p/kWh
Daily Fixed Charge
53.94p/day
Local Sunshine
1014kWh/kW
A 1 kW system generates ~1014 kWh per year. A typical home uses ~2,700 kWh per year.
Typical System Size
3.0kW
For houses & bungalows in this area

⚠️ This area is predominantly flats. Many residents require freeholder approval for solar installations. System size shown reflects houses and bungalows only.

Local Property Data

Property Types

Houses: 37% • Flats: 55% • Bungalows: 5% Based on 6,871 properties

Coverage

Havering (100%)

Areas Covered

St Edward's, Marshalls & Rise Park, St Alban's, Rush Green & Crowlands, Havering-atte-Bower, Hylands & Harrow Lodge, Mawneys, Heaton + 1 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

RM50 (Havering)
≈1.2 km away
Local sunshine: ~1,014 kWh/kWp · +0% vs RM1
RM7 (Havering)
≈1.2 km away
Local sunshine: ~1,014 kWh/kWp · -0% vs RM1
RM2 (Havering)
≈1.5 km away
Local sunshine: ~1,014 kWh/kWp · -0% vs RM1
RM11 (Havering)
≈2.7 km away
Local sunshine: ~1,014 kWh/kWp · -0% vs RM1
RM5 (Havering)
≈2.8 km away
Local sunshine: ~1,014 kWh/kWp · +0% vs RM1
RM12 (Havering)
≈3.2 km away
Local sunshine: ~1,014 kWh/kWp · -0% vs RM1

Similar sunshine across the UK

TA11 (Somerset)
~1,014 kWh/kWp · -0% vs RM1
RH7 (Tandridge)
~1,014 kWh/kWp · -0% vs RM1
SA69 (Pembrokeshire)
~1,014 kWh/kWp · -0% vs RM1