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Solar panel cost in Tandridge (CR6)

See realistic solar installation costs, savings and payback for CR6 (Tandridge) 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
9.8 years
After this, it's pure profit
Upfront Cost
£9,767
What you pay to get started
Annual Benefit
£998
What you save every year
Profit Over 25 Years
£15,195
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 South East, the current unit rate is 26.67p/kWh with a 54.45p/day standing charge. Your postcode’s south-facing sunshine yield is 998 kWh/kW — 31 below the regional median (1029).

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 998 kWh per year on a south-facing roof. We value self-used electricity at 26.7p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
26.7p/kWh
Standing charge
54.5p/day
Sunshine yield (south)
998 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: £832, Upfront: £8,139, Break-even: 9.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1997 kWh 799 kWh 1198 kWh £213 £120 £333 £3,256 9.8 yrs £3,401
3 kW 2995 kWh 1198 kWh 1797 kWh £320 £180 £499 £4,883 9.8 yrs £5,101
4 kW 3993 kWh 1597 kWh 2396 kWh £426 £240 £666 £6,511 9.8 yrs £6,802
5 kW 4992 kWh 1997 kWh 2995 kWh £533 £300 £832 £8,139 9.8 yrs £8,502
6 kW 5990 kWh 2396 kWh 3594 kWh £639 £359 £998 £9,767 9.8 yrs £10,202
7 kW 6989 kWh 2795 kWh 4193 kWh £746 £419 £1,165 £11,394 9.8 yrs £11,903
8 kW 7987 kWh 3195 kWh 4792 kWh £852 £479 £1,331 £13,022 9.8 yrs £13,603

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: £998, Upfront: £10,239, Break-even: 10.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1997 kWh 1198 kWh 799 kWh £320 £80 £399 £5,356 13.4 yrs £2,632
3 kW 2995 kWh 1797 kWh 1198 kWh £479 £120 £599 £6,983 11.7 yrs £4,998
4 kW 3993 kWh 2396 kWh 1597 kWh £639 £160 £799 £8,611 10.8 yrs £7,364
5 kW 4992 kWh 2995 kWh 1997 kWh £799 £200 £998 £10,239 10.3 yrs £9,731
6 kW 5990 kWh 3594 kWh 2396 kWh £959 £240 £1,198 £11,867 9.9 yrs £12,097
7 kW 6989 kWh 4193 kWh 2795 kWh £1,118 £280 £1,398 £13,494 9.7 yrs £14,463
8 kW 7987 kWh 4792 kWh 3195 kWh £1,278 £319 £1,598 £15,122 9.5 yrs £16,829

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: £1,082, Upfront: £11,639, Break-even: 10.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1997 kWh 1398 kWh 599 kWh £373 £60 £433 £6,756 15.6 yrs £1,898
3 kW 2995 kWh 2097 kWh 899 kWh £559 £90 £649 £8,383 12.9 yrs £4,597
4 kW 3993 kWh 2795 kWh 1198 kWh £746 £120 £865 £10,011 11.6 yrs £7,296
5 kW 4992 kWh 3494 kWh 1498 kWh £932 £150 £1,082 £11,639 10.8 yrs £9,995
6 kW 5990 kWh 4193 kWh 1797 kWh £1,118 £180 £1,298 £13,267 10.2 yrs £12,694
7 kW 6989 kWh 4892 kWh 2097 kWh £1,305 £210 £1,514 £14,894 9.8 yrs £15,393
8 kW 7987 kWh 5591 kWh 2396 kWh £1,491 £240 £1,731 £16,522 9.5 yrs £18,092

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: £1,107, Upfront: £13,389, Break-even: 12.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1997 kWh 1458 kWh 539 kWh £389 £54 £443 £8,506 19.2 yrs £348
3 kW 2995 kWh 2186 kWh 809 kWh £583 £81 £664 £10,133 15.3 yrs £3,146
4 kW 3993 kWh 2915 kWh 1078 kWh £777 £108 £885 £11,761 13.3 yrs £5,945
5 kW 4992 kWh 3644 kWh 1348 kWh £972 £135 £1,107 £13,389 12.1 yrs £8,744
6 kW 5990 kWh 4373 kWh 1617 kWh £1,166 £162 £1,328 £15,017 11.3 yrs £11,543
7 kW 6989 kWh 5102 kWh 1887 kWh £1,361 £189 £1,549 £16,644 10.7 yrs £14,342
8 kW 7987 kWh 5830 kWh 2156 kWh £1,555 £216 £1,771 £18,272 10.3 yrs £17,141

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: £1,123, Upfront: £15,139, 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 1997 kWh 1498 kWh 499 kWh £399 £50 £449 £10,256 22.8 yrs £-1,269
3 kW 2995 kWh 2246 kWh 749 kWh £599 £75 £674 £11,883 17.6 yrs £1,596
4 kW 3993 kWh 2995 kWh 998 kWh £799 £100 £899 £13,511 15.0 yrs £4,462
5 kW 4992 kWh 3744 kWh 1248 kWh £998 £125 £1,123 £15,139 13.5 yrs £7,327
6 kW 5990 kWh 4493 kWh 1498 kWh £1,198 £150 £1,348 £16,767 12.4 yrs £10,192
7 kW 6989 kWh 5241 kWh 1747 kWh £1,398 £175 £1,573 £18,394 11.7 yrs £13,058
8 kW 7987 kWh 5990 kWh 1997 kWh £1,598 £200 £1,797 £20,022 11.1 yrs £15,923

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: £1,140, Upfront: £17,589, Break-even: 15.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1997 kWh 1537 kWh 459 kWh £410 £46 £456 £12,706 27.9 yrs £-3,586
3 kW 2995 kWh 2306 kWh 689 kWh £615 £69 £684 £14,333 21.0 yrs £-654
4 kW 3993 kWh 3075 kWh 919 kWh £820 £92 £912 £15,961 17.5 yrs £2,278
5 kW 4992 kWh 3844 kWh 1148 kWh £1,025 £115 £1,140 £17,589 15.4 yrs £5,210
6 kW 5990 kWh 4612 kWh 1378 kWh £1,230 £138 £1,368 £19,217 14.0 yrs £8,142
7 kW 6989 kWh 5381 kWh 1607 kWh £1,435 £161 £1,596 £20,844 13.1 yrs £11,074
8 kW 7987 kWh 6150 kWh 1837 kWh £1,640 £184 £1,824 £22,472 12.3 yrs £14,006

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 Tandridge

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 CR6

Figures below are tailored to CR6 — click through for full league tables.

Big-Roof Britain Rank #487 of 2182
5.6 kWp (UK avg 5.1 kWp)
~12 panels (≈430 W)
Solar Payback Index Rank #603 of 2996
9.8 years (UK avg 10.8 years)
~£998 /yr • £9,767 upfront
Standing-Charge Drag Rank #498 of 2996
19.9% (UK avg 26.6%) drag on savings
£199 fixed • ~£998 /yr value
Aspect Penalty View ranking →
East −20.6% West −20.0%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in CR6

Monthly generation per kilowatt of solar panels

kWh 37 Jan 51 Feb 84 Mar 113 Apr 121 May 123 Jun 123 Jul 110 Aug 94 Sep 66 Oct 45 Nov 32 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 48.0% 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 40 kWh per month; the average month produces around 83 kWh. So a typical 4 kW home system would generate roughly 160 kWh in winter, or 333 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
26.67p/kWh
Daily Fixed Charge
54.45p/day
Local Sunshine
998kWh/kW
A 1 kW system generates ~998 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: 57% • Flats: 26% • Bungalows: 10% Based on 2,439 properties

Coverage

Tandridge (97%)|Croydon (2%)|Bromley (1%)

Areas Covered

Warlingham East & Chelsham & Farleigh, Warlingham West, Harestone, Sanderstead, Whyteleafe, Tatsfield & Titsey, Woldingham, Biggin Hill + 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 South East

CR3 (Tandridge)
≈2.2 km away
Local sunshine: ~986 kWh/kWp · -1% vs CR6
CR8 (Croydon)
≈4.7 km away
Local sunshine: ~971 kWh/kWp · -3% vs CR6
CR2 (Croydon)
≈5.0 km away
Local sunshine: ~990 kWh/kWp · -1% vs CR6
CR5 (Croydon)
≈5.7 km away
Local sunshine: ~983 kWh/kWp · -2% vs CR6
TN16 (Bromley)
≈6.6 km away
Local sunshine: ~1,009 kWh/kWp · +1% vs CR6
RH8 (Tandridge)
≈6.8 km away
Local sunshine: ~1,006 kWh/kWp · +1% vs CR6

Similar sunshine across the UK

OX14 (Vale of White Horse)
~998 kWh/kWp · +0% vs CR6
RG10 (Wokingham)
~998 kWh/kWp · +0% vs CR6
NN29 (North Northamptonshire)
~998 kWh/kWp · +0% vs CR6