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Solar panel cost in Waverley (GU7)

See realistic solar installation costs, savings and payback for GU7 (Waverley) 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
10.0 years
After this, it's pure profit
Upfront Cost
£8,139
What you pay to get started
Annual Benefit
£812
What you save every year
Profit Over 25 Years
£12,151
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 Southern, the current unit rate is 26.42p/kWh with a 49.70p/day standing charge. Your postcode’s south-facing sunshine yield is 980 kWh/kW — 22 below the regional median (1001).

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 980 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
49.7p/day
Sunshine yield (south)
980 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: £812, Upfront: £8,139, 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 1959 kWh 784 kWh 1176 kWh £207 £118 £325 £3,256 10.0 yrs £3,237
3 kW 2939 kWh 1176 kWh 1763 kWh £311 £176 £487 £4,883 10.0 yrs £4,856
4 kW 3919 kWh 1568 kWh 2351 kWh £414 £235 £649 £6,511 10.0 yrs £6,474
5 kW 4899 kWh 1959 kWh 2939 kWh £518 £294 £812 £8,139 10.0 yrs £8,093
6 kW 5878 kWh 2351 kWh 3527 kWh £621 £353 £974 £9,767 10.0 yrs £9,712
7 kW 6858 kWh 2743 kWh 4115 kWh £725 £411 £1,136 £11,394 10.0 yrs £11,330
8 kW 7838 kWh 3135 kWh 4703 kWh £828 £470 £1,299 £13,022 10.0 yrs £12,949

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: £972, Upfront: £10,239, 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 1959 kWh 1176 kWh 784 kWh £311 £78 £389 £5,356 13.8 yrs £2,424
3 kW 2939 kWh 1763 kWh 1176 kWh £466 £118 £583 £6,983 12.0 yrs £4,686
4 kW 3919 kWh 2351 kWh 1568 kWh £621 £157 £778 £8,611 11.1 yrs £6,948
5 kW 4899 kWh 2939 kWh 1959 kWh £777 £196 £972 £10,239 10.5 yrs £9,210
6 kW 5878 kWh 3527 kWh 2351 kWh £932 £235 £1,167 £11,867 10.2 yrs £11,472
7 kW 6858 kWh 4115 kWh 2743 kWh £1,087 £274 £1,361 £13,494 9.9 yrs £13,735
8 kW 7838 kWh 4703 kWh 3135 kWh £1,242 £314 £1,556 £15,122 9.7 yrs £15,997

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: £1,053, Upfront: £11,639, Break-even: 11.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1959 kWh 1372 kWh 588 kWh £362 £59 £421 £6,756 16.0 yrs £1,668
3 kW 2939 kWh 2057 kWh 882 kWh £544 £88 £632 £8,383 13.3 yrs £4,251
4 kW 3919 kWh 2743 kWh 1176 kWh £725 £118 £842 £10,011 11.9 yrs £6,835
5 kW 4899 kWh 3429 kWh 1470 kWh £906 £147 £1,053 £11,639 11.1 yrs £9,419
6 kW 5878 kWh 4115 kWh 1763 kWh £1,087 £176 £1,263 £13,267 10.5 yrs £12,003
7 kW 6858 kWh 4801 kWh 2057 kWh £1,268 £206 £1,474 £14,894 10.1 yrs £14,587
8 kW 7838 kWh 5486 kWh 2351 kWh £1,450 £235 £1,685 £16,522 9.8 yrs £17,171

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: £1,077, Upfront: £13,389, 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 1959 kWh 1430 kWh 529 kWh £378 £53 £431 £8,506 19.7 yrs £111
3 kW 2939 kWh 2146 kWh 794 kWh £567 £79 £646 £10,133 15.7 yrs £2,791
4 kW 3919 kWh 2861 kWh 1058 kWh £756 £106 £862 £11,761 13.6 yrs £5,471
5 kW 4899 kWh 3576 kWh 1323 kWh £945 £132 £1,077 £13,389 12.4 yrs £8,152
6 kW 5878 kWh 4291 kWh 1587 kWh £1,134 £159 £1,292 £15,017 11.6 yrs £10,832
7 kW 6858 kWh 5006 kWh 1852 kWh £1,323 £185 £1,508 £16,644 11.0 yrs £13,512
8 kW 7838 kWh 5722 kWh 2116 kWh £1,512 £212 £1,723 £18,272 10.6 yrs £16,193

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: £1,093, Upfront: £15,139, Break-even: 13.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1959 kWh 1470 kWh 490 kWh £388 £49 £437 £10,256 23.5 yrs £-1,511
3 kW 2939 kWh 2204 kWh 735 kWh £582 £73 £656 £11,883 18.1 yrs £1,234
4 kW 3919 kWh 2939 kWh 980 kWh £777 £98 £874 £13,511 15.5 yrs £3,979
5 kW 4899 kWh 3674 kWh 1225 kWh £971 £122 £1,093 £15,139 13.8 yrs £6,723
6 kW 5878 kWh 4409 kWh 1470 kWh £1,165 £147 £1,312 £16,767 12.8 yrs £9,468
7 kW 6858 kWh 5143 kWh 1714 kWh £1,359 £171 £1,530 £18,394 12.0 yrs £12,213
8 kW 7838 kWh 5878 kWh 1959 kWh £1,553 £196 £1,749 £20,022 11.4 yrs £14,957

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: £1,109, Upfront: £17,589, Break-even: 15.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1959 kWh 1509 kWh 451 kWh £399 £45 £444 £12,706 28.6 yrs £-3,832
3 kW 2939 kWh 2263 kWh 676 kWh £598 £68 £666 £14,333 21.5 yrs £-1,023
4 kW 3919 kWh 3018 kWh 901 kWh £797 £90 £887 £15,961 18.0 yrs £1,786
5 kW 4899 kWh 3772 kWh 1127 kWh £997 £113 £1,109 £17,589 15.9 yrs £4,595
6 kW 5878 kWh 4526 kWh 1352 kWh £1,196 £135 £1,331 £19,217 14.4 yrs £7,404
7 kW 6858 kWh 5281 kWh 1577 kWh £1,395 £158 £1,553 £20,844 13.4 yrs £10,213
8 kW 7838 kWh 6035 kWh 1803 kWh £1,594 £180 £1,775 £22,472 12.7 yrs £13,022

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 Waverley

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 GU7

Figures below are tailored to GU7 — click through for full league tables.

Big-Roof Britain Rank #1427 of 2182
4.7 kWp (UK avg 5.1 kWp)
~10 panels (≈430 W)
Solar Payback Index Rank #1096 of 2996
10.0 years (UK avg 10.8 years)
~£812 /yr • £8,139 upfront
Standing-Charge Drag Rank #948 of 2996
22.3% (UK avg 26.6%) drag on savings
£181 fixed • ~£812 /yr value
Aspect Penalty View ranking →
East −19.2% West −19.7%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in GU7

Monthly generation per kilowatt of solar panels

kWh 34 Jan 50 Feb 85 Mar 113 Apr 120 May 122 Jun 123 Jul 110 Aug 93 Sep 64 Oct 42 Nov 25 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 44.1% 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 36 kWh per month; the average month produces around 82 kWh. So a typical 4 kW home system would generate roughly 144 kWh in winter, or 327 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
26.42p/kWh
Daily Fixed Charge
49.70p/day
Local Sunshine
980kWh/kW
A 1 kW system generates ~980 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: 61% • Flats: 30% • Bungalows: 6% Based on 6,805 properties

Coverage

Waverley (97%)|Guildford (3%)

Areas Covered

Godalming Central & Ockford, Godalming Binscombe & Charterhouse, Godalming Farncombe & Catteshall, Godalming Holloway, Bramley & Wonersh, Pilgrims, Shalford

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 Southern

GU8 (Waverley)
≈4.4 km away
Local sunshine: ~1,011 kWh/kWp · +3% vs GU7
GU12 (Guildford)
≈11.0 km away
Local sunshine: ~1,000 kWh/kWp · +2% vs GU7
GU11 (Rushmoor)
≈12.8 km away
Local sunshine: ~993 kWh/kWp · +1% vs GU7
GU26 (Waverley)
≈12.9 km away
Local sunshine: ~1,005 kWh/kWp · +3% vs GU7
GU10 (Waverley)
≈13.6 km away
Local sunshine: ~1,000 kWh/kWp · +2% vs GU7
GU9 (Waverley)
≈13.9 km away
Local sunshine: ~991 kWh/kWp · +1% vs GU7

Similar sunshine across the UK

LN10 (East Lindsey)
~980 kWh/kWp · -0% vs GU7
HP23 (Dacorum)
~980 kWh/kWp · -0% vs GU7
SA63 (Pembrokeshire)
~979 kWh/kWp · -0% vs GU7